https://blog.mozilla.org/Mozilla2026-09-23T13:50:46.301017+00:00Mozillapython-feedgenhttps://www.google.com/s2/favicons?domain=blog.mozilla.org&sz=64https://www.google.com/s2/favicons?domain=blog.mozilla.org&sz=256Combined Mozilla feed: the Mozilla, Firefox Nightly, Add-ons, Hacks and Thunderbird blogs, SpiderMonkey, Mozilla Connect, Planet Mozilla, Nightly release notes, and shipped Firefox desktop and Android release notes.tag:trvny.github.io,2024:feedseek/mozilla/c28eee9470a55bcfI only need my Sent Gmail emails in Word. Do I have to select every email manually?2026-09-23T12:42:25+00:00I needed to create a Word-based record of emails I had sent during a particular project. I didn't need my Inbox, Drafts, Spam, or other Gmail folders. Initially, I thought I would have to search the Sent folder, select the messages one by one, and save them individually. That approach was fine when I tested it with a few emails, but it wasn't realistic for a large collection. I looked at RecoveryTools Gmail to Word Converter Tool and found that its selective export settings include an Only Expor2026-09-23T12:42:25+00:00Mozilla Connecttag:trvny.github.io,2024:feedseek/mozilla/c9f041362e7d92babuy crypto on trocrypts with credit card without OTP verification2026-09-23T12:02:41+00:00Welcome to Trocrypts Your Fast, Secure Gateway to Digital Finance At Trocrypts, we’re redefining how you access crypto and manage digital payments. Whether you're buying Bitcoin instantly, sending money online, or topping up your wallet, our platform combines speed, simplicity, and enterprise-grade security—so you can transact with confidence. 🔥 Why Users Trust Trocrypts ✅ Instant Crypto Purchases with Card Buy Bitcoin, Ethereum, Solana, and more in seconds using your Visa or Mastercard. Once ve2026-09-23T12:02:41+00:00Mozilla Connecttag:trvny.github.io,2024:feedseek/mozilla/14453d9147e3c223Firefox 156.0.1 does not work from Thunderbird in Linux Mint2026-09-23T10:28:46+00:00From an email of Thunderbird, click on a link as https://www.weeklyosm.eu/fr/archives/18880/ never show the page. Firefox does not connect to this site. Only the Ui is shown. Another site also does not work. ps ax shows the right command. But the command line firefox in a terminal works fine with all sites. Note that this system is a virtualbox machine with Linux Mint as guest.2026-09-23T10:28:46+00:00Mozilla Connecttag:trvny.github.io,2024:feedseek/mozilla/0a0f0484fa18261fHow can we Recover locked PST file ?2026-09-23T10:26:56+00:00If you have forgotten the password of an Outlook PST file, recovering access can be difficult, especially if it is an old backup. The easy and best option to recover PST file is using dedicated software MailsDaddy PST Password Remover , which is designed to remove password protection from Outlook PST files. Features of MailsDaddy PST Password Remover : It removes PST password protection from password-protected Outlook files. It has simple user interface for users with limited technical knowledge2026-09-23T10:26:56+00:00Mozilla Connecttag:trvny.github.io,2024:feedseek/mozilla/0c22960c073f3d51updates on Xiaomi only with ,get Apps, possible2026-09-23T07:53:35+00:00Hello, Ist there a way without another App to get Updates directly? Greetings Carl2026-09-23T07:53:35+00:00Mozilla Connecttag:trvny.github.io,2024:feedseek/mozilla/e40e274584211c4bDid URL/Search change on tab? (Firefox Developer 157.0b4)2026-09-23T07:39:09+00:00Hey everyone, i might be tripping, but did the search bar recently changed? By muscle memory I would start typing the page i want to go to and if it autocompletes, I would tab and enter. now tab changes to the next search result vertically instead of completing the suggestion. Or was it always like that and I just started to think about ti too much? Thanks2026-09-23T07:39:09+00:00Mozilla Connecttag:trvny.github.io,2024:feedseek/mozilla/3fcaeddb265bd899Self-Destructing Profiles - Why?2026-09-23T05:14:49+00:00This is going to be long, so TLDR is: Is periodic deletion of profile data a function or a bug? Either way, it is counter to Mozilla's entire philosophy to have a feature completely deny user agency over their own data. Been having an issue consistently every single time Firefox updates over the past year or so (since the new profile system), where my profile data is deleted. The first time it happened I was able to recover them using the guide on Mozilla's support page, using file system and ol2026-09-23T05:14:49+00:00Mozilla Connecttag:trvny.github.io,2024:feedseek/mozilla/6f06c3b500636b90Send Tab to Device no longer present on Firefox Android v1562026-09-23T02:55:46+00:00With the new change to the default Android Share menu, there is supposed to still be the Send Tab to Device option: https://www.firefox.com/en-US/firefox/android/156.0/releasenotes/#:~:text=Android%20sharing,screen On my Vivo Android phone, there is now only the default share menu with nothing else.2026-09-23T02:55:46+00:00Mozilla Connecttag:trvny.github.io,2024:feedseek/mozilla/b6a65a396dbcb69aHappy BMO Push Day! (20260922.1)2026-09-22T22:25:20+00:00Github Link
The following changes have been pushed to bugzilla.mozilla.org:
Thanks to Kohei for his work on the newly revised Guided Bug Entry form! If you want to check it out yourself, then click on the Switch to Bugzilla Helper link at the bottom of the enter bug product selection page. Normally users without canconfirm permissions will see the Guided Bug page by default which a large percentage of our Bugzilla users.
Bug 1995464 - Overhaul guided bug entry form
Bug 2002553 - BMO rest api se2026-09-22T22:25:20+00:00Planet Mozillatag:trvny.github.io,2024:feedseek/mozilla/0a23a52912bc0096Firefox offline but rest online!2026-09-22T20:03:36+00:00About 30 minutes ago my Firefox stopped working. Everything else is online. Safari. WhatsApp. What could cause this? Tried even the nuclear option in troubleshooting.2026-09-22T20:03:36+00:00Mozilla Connecttag:trvny.github.io,2024:feedseek/mozilla/c30169dcc67003abFirefox 115.41.0 esr fails to display some web pages correctly2026-09-22T17:12:56+00:00one example is https://www.ing.de/2026-09-22T17:12:56+00:00Mozilla Connecttag:trvny.github.io,2024:feedseek/mozilla/36c12ed98ba8ada3Firefox Profiler Deployment (September 22, 2026)2026-09-22T16:42:20+00:00The latest version of the Firefox Profiler is now live! Check out the full changelog below to see what’s changed:
Highlights:
[fatadel] Show a category breakdown in profiler-cli (#6256)
[fatadel] Show allocation data in the cli (#6246)
[Florian Quèze] profiler-cli: add a thread list command (#6273)
[Florian Quèze] profiler-cli: add a thread list command (#6273)
[Nazım Can Altınova] Add a permalink command to profiler-cli for already published profiles (#6331)
[Florian Quèze] profiler-cli: add p2026-09-22T16:42:20+00:00Planet Mozillatag:trvny.github.io,2024:feedseek/mozilla/075e0096e836279fFirefox should remember the last download folder used (browser.download.lastDir)2026-09-22T16:15:14+00:00Firefox no longer reopens the last folder used in the Save As dialog. Tested on multiple Windows 11 computers with a clean Firefox profile. Configuration: browser.download.folderList = 2 browser.download.useDownloadDir = false browser.download.lastDir is updated correctly with the last folder used, but the Save As dialog always opens the Downloads folder instead of the last used folder. This significantly affects workflows involving large numbers of downloaded documents2026-09-22T16:15:14+00:00Mozilla Connecttag:trvny.github.io,2024:feedseek/mozilla/6bb7c69b9d685849Firefox DevTools MCP 0.10.4 released2026-09-22T12:43:12+00:00Firefox DevTools MCP (firefox-devtools-mcp) 0.10.4 is out on npm.
Changes
This release only contains additional hooks and configuration files to register Firefox DevTools MCP on various third-party aggregators, as well as a new task to automatically register the mcp on https://registry.modelcontextprotocol.io/ on release.
Full changelog: Release v0.10.4 · mozilla/firefox-devtools-mcp · GitHub
Repository and issues: GitHub - mozilla/firefox-devtools-mcp: Model Context Protocol server for Firefox 2026-09-22T12:43:12+00:00Planet Mozillatag:trvny.github.io,2024:feedseek/mozilla/9c8e9c409f6ccc7b[BUG] Windows taskbar showing on top of mediaplayer2026-09-22T10:46:43+00:00Firefox version: 156.0 Windows 11 --- Symptom: Since the 156.0 update, any video player used through the browser places the windows taskbar on top, often obscuring the transport controls. Reproduce: Play any browser video. Comments: I would guess this bug was introduced with one of the headline fixes for the version: `Fixed an issue on Windows where Firefox could block an auto-hiding taskbar from showing.`2026-09-22T10:46:43+00:00Mozilla Connecttag:trvny.github.io,2024:feedseek/mozilla/804a32935cc97fd7Suggestions for SplitView2026-09-22T08:24:30+00:00I would like to see improved link handling in Firefox Split View. Currently, Split View is useful for displaying two tabs side by side, but it would be much more useful as a workspace if links could be opened directly in a specific pane. For example, I would like to have options such as: “Open Link in Right Pane” “Open Link in Left Pane” An option to make links clicked in one pane open in the other pane Keyboard shortcuts or Ctrl-click behavior for opening links in a specific pane The ability to2026-09-22T08:24:30+00:00Mozilla Connecttag:trvny.github.io,2024:feedseek/mozilla/253cda273374ab64asfdfdfdsfds2026-09-22T07:50:30+00:00sdgdgfdffggdf2026-09-22T07:50:30+00:00Mozilla Connecttag:trvny.github.io,2024:feedseek/mozilla/801a77d8af928362dfdfdf2026-09-22T07:46:05+00:00dfddfd gddffdfdfdfdfd2026-09-22T07:46:05+00:00Mozilla Connecttag:trvny.github.io,2024:feedseek/mozilla/40065d07dc6f32d0Bring back Tabs for Computer2026-09-22T05:16:20+00:00During your last upgrade to version 156.0, you removed the tabs above the search bar. With these tabs, I listen to music or sports. This way, I could continue with other internet businesses. Please bring them back or make them an option.2026-09-22T05:16:20+00:00Mozilla Connecttag:trvny.github.io,2024:feedseek/mozilla/0f8ab0bd05b982aepopups2026-09-22T03:58:31+00:00Firefox version 156.0 has no way to temporarily undue the blocker for a particular site. There is no longer a permission for change.2026-09-22T03:58:31+00:00Mozilla Connecttag:trvny.github.io,2024:feedseek/mozilla/cab455e80bf8785eAnnouncing a Maintainer in Residence: Scott Schafer for the Cargo team2026-09-22T00:00:00+00:00At the end of August, we announced our first Maintainers in Residence, Rust Project contributors who are funded for their upstream contributions and maintenance work from the Rust Foundation Maintainers Fund (RFMF). Since then, the Rust Leadership Council has dedicated more funds from its Project Priorities budget to RFMF, and together with AWS also providing additional funds, this allowed us to open a new full-time Maintainer in Residence (MiR) position to support the Cargo team. We would like 2026-09-22T00:00:00+00:00Planet Mozillatag:trvny.github.io,2024:feedseek/mozilla/3426d4e89148b1dfFirefox 156.0.12026-09-22T00:00:00+00:00Firefox 156.0.1 release notes.2026-09-22T00:00:00+00:00Release Notestag:trvny.github.io,2024:feedseek/mozilla/57caf4be91bd9349Firefox for Android 156.0.12026-09-22T00:00:00+00:00Firefox for Android 156.0.1 release notes.2026-09-22T00:00:00+00:00Android Release Notestag:trvny.github.io,2024:feedseek/mozilla/c0bff87efd42565fFirefox Mobile Keyboard Enhances2026-09-21T18:59:20+00:00Hello yall, I dont know if this is the right place to share suggestions, but I couldnt find a "submit feedback" page (which in itself is kind of a proposal i guess...?) So, as someone that uses Firefox on their Tablet (with an attached keyboard) its kind of weird, that shortcuts like ctrl w or ctrl t, that are deeply engraved in muscle memory, dont work. I greatly beg mozilla to port atleast the most basic shortcuts of firefox desktop to mobile (and the vertical tab list while their at it pls?) 2026-09-21T18:59:20+00:00Mozilla Connecttag:trvny.github.io,2024:feedseek/mozilla/5e39697c79b5a383failed to shut down2026-09-21T18:58:22+00:00Firefox does not shut down correctly. It leaves 3 processes running . I have to got to windows task manager, and manually kill those processes to get a complete shutdown. If I try to run CCleaner, it tells me that FireFox is not closed, and it attempts to close it.That is usually not successful. I have to open task manager and close the running processes before Firefox will completely close. Please fix this problem.2026-09-21T18:58:22+00:00Mozilla Connecttag:trvny.github.io,2024:feedseek/mozilla/e7e969ee9117b8edStop the ideological arrogance: Native TNEF/winmail.dat support is 15 years overdue2026-09-21T18:46:38+00:00An email client has exactly one fundamental job: to display emails and deliver attachments reliably. Everything else is secondary. For over a decade, the official response to TNEF has been the same stubborn, elitist excuse: "It's not an RFC standard, it's proprietary Microsoft garbage, not our problem." Guess what? Nobody in the real world cares about your ideological war with Microsoft. When a client, a tax office, or an employer sends an email with a winmail.dat attachment containing an urgent2026-09-21T18:46:38+00:00Mozilla Connecttag:trvny.github.io,2024:feedseek/mozilla/fd50d261d965b105Stay focused wherever you work with Firefox mobile browsers2026-09-21T17:00:00+00:00When it’s Monday morning and you’re on the subway, in a coffee shop, or squeezing in a few email replies after your morning workout, your phone becomes your digital office. But every time you open your browser, you risk getting struck with any combination of distracting ads, auto-playing videos, and open tabs from the previous […] The post Stay focused wherever you work with Firefox mobile browsers appeared first on The Mozilla Blog .2026-09-21T17:00:00+00:00Mozilla Blogtag:trvny.github.io,2024:feedseek/mozilla/8695479bcec439baGitHub Actions leaking secrets when Miri output is cached2026-09-21T00:00:00+00:00The Rust Security Response Team was notified that Miri stores all environment variables to target/, allowing secrets to persist in caches.
While not necessary a vulnerability in and of itself, when paired with GitHub Actions caching behavior, it is possible for this to expose secrets to PRs.
Overview
GitHub Actions makes it possible to cache directories between runs. Typical setups allow CI runs on main (and other branches) to write to cache, and PRs can only read from cache (preventing cache p2026-09-21T00:00:00+00:00Planet Mozillatag:trvny.github.io,2024:feedseek/mozilla/b12fc0beb4281b86Starting with Firefox 158, Firefox Nightly now supports streaming uploads with the Fetch API,...2026-09-18T16:55:21.904671+00:00158.0a1 / Web Platform / Bug 1594633 Starting with Firefox 158, Firefox Nightly now supports streaming uploads with the Fetch API , allowing web applications to send request bodies incrementally using a ReadableStream without buffering the entire body first.2026-09-18T16:55:21.904671+00:00Nightly Release Notestag:trvny.github.io,2024:feedseek/mozilla/3c1deb4bfc67ad2fFixed an issue where the Network Monitor could miss WebSocket messages if they arrived...2026-09-18T15:08:16.409646+00:00158.0a1 / Developer / Bug 1719394 Fixed an issue where the Network Monitor could miss WebSocket messages if they arrived immediately after a connection was established.2026-09-18T15:08:16.409646+00:00Nightly Release Notestag:trvny.github.io,2024:feedseek/mozilla/d8722f234ae2bee6Firefox DevTools MCP 0.10.3 released2026-09-18T10:14:45+00:00Firefox DevTools MCP (firefox-devtools-mcp) 0.10.3 is out on npm.
New features:
New tool: close_firefox_session — ends the browser session: it releases the connection when the server is attached to an existing Firefox, and closes the browser when the server started it.
New parameter: fullPage for screenshot_page — captures the whole scrollable document instead of the viewport.
New parameter: downloadFolder for set_download_behavior — only used when setting the “allowed” behavior, it sets the fo2026-09-18T10:14:45+00:00Planet Mozillatag:trvny.github.io,2024:feedseek/mozilla/9c8d31191753e6b4Mila and Mozilla announce new initiative to build trustworthy open source AI for everyone, with Canadian government support2026-09-17T19:30:00+00:00Today at ALL IN, Canada’s largest AI and technology event, Mozilla and Mila announced a new initiative and fresh investment to build an open source AI foundation layer that enables organizations and institutions to own and operate advanced AI systems locally, ensuring full control over their technology and data. Doubling down on its commitment to […] The post Mila and Mozilla announce new initiative to build trustworthy open source AI for everyone, with Canadian government support appeared firs2026-09-17T19:30:00+00:00Mozilla Blogtag:trvny.github.io,2024:feedseek/mozilla/469b36b0e6082ebeFirefox now supports the cache value for PerformanceResourceTiming.deliveryType, allowing...2026-09-17T17:49:23.595444+00:00158.0a1 / Web Platform / Bug 2071913 Firefox now supports the cache value for PerformanceResourceTiming.deliveryType , allowing websites to identify resources served from the HTTP cache.2026-09-17T17:49:23.595444+00:00Nightly Release Notestag:trvny.github.io,2024:feedseek/mozilla/133868413c66b6e2High-speed Release Trains – These Weeks in Firefox: Issue 2092026-09-17T17:14:51+00:00Highlights Firefox 155 just released! That’s the first release that went through the full 2-week release cycle process. The WebExtensions team added a new backgrounds_area theme property so themes can … Read more2026-09-17T17:14:51+00:00Firefox Nightlytag:trvny.github.io,2024:feedseek/mozilla/07d950ba21583428Pragmatic principles for more rights-respecting age assurance architectures2026-09-17T10:08:13+00:00This is the second part of a two-part series in which we explore approaches to protecting children online while safeguarding privacy, security and the open web. Part one covers our … Read more
The post Pragmatic principles for more rights-respecting age assurance architectures appeared first on Open Policy & Advocacy.2026-09-17T10:08:13+00:00Planet Mozillatag:trvny.github.io,2024:feedseek/mozilla/9c0a0a9e8878115fPDF generation (for saving as PDF and also printing on Linux and macOS) now uses SkPDF. This...2026-09-17T00:36:18.626362+00:00158.0a1 / Fixed / Bug 1372506 PDF generation (for saving as PDF and also printing on Linux and macOS) now uses SkPDF. This allows PDFs to be more accessible, and also fixes a variety of PDF rendering issues.2026-09-17T00:36:18.626362+00:00Nightly Release Notestag:trvny.github.io,2024:feedseek/mozilla/a593bae2e9453a01Be alert: targeted attacks on prominent Rustaceans2026-09-17T00:00:00+00:00We believe that there is an ongoing campaign targeting rust-lang members and
owners of popular crates that is attempting to compromise devices and accounts
in order to use them to publish malware.
What we've seen
A video call is set up for something positive — maybe for a job, maybe for a
project, maybe for a contract opportunity — and then that's used as a vector to
either get the target to install something on their computer (such as a
purportedly missing audio codec) or execute another comma2026-09-17T00:00:00+00:00Planet Mozillatag:trvny.github.io,2024:feedseek/mozilla/74f437d9fe5e4530Happy BMO Push Day! (20260916.1)2026-09-16T18:03:55+00:00Github Link
The following changes have been pushed to bugzilla.mozilla.org:
Bug 2069143 - When retrieving comments for a bug(s) via REST API, remove comments that would be collapsed in the web UI unless explicitly asking for them
Bug 2070247 - Support limiting who can needinfo the Hackbot account
Bug 2061445 - Migrate Bugzilla (system info) REST resource to native Mojo API
Bug 1877201 - Post to bug/{bugid}/comment returns wrong comment_id
Bug 2072224 - Update REST API authentication documentati2026-09-16T18:03:55+00:00Planet Mozillatag:trvny.github.io,2024:feedseek/mozilla/d3f7cc5b6a289db5MozPhab 2.19.1 Released2026-09-16T14:28:36+00:00Bugs resolved in Moz-Phab 2.19.1:
bug 2071003 moz-phab patch --apply-to head moves to a detached HEAD
Discuss these changes in #engineering-workflow on Slack or #Conduit Matrix.
1 post - 1 participant
Read full topic2026-09-16T14:28:36+00:00Planet Mozillatag:trvny.github.io,2024:feedseek/mozilla/c5eac13d430e517fStarting with Firefox 158, Firefox Nightly now supports the random() CSS function, which allows...2026-09-16T14:27:20.052951+00:00158.0a1 / Web Platform / Bug 2071165 Starting with Firefox 158, Firefox Nightly now supports the random() CSS function, which allows authors to introduce randomness into their styles, generating a random value in a given range (with an optional increment) that is usable anywhere that math functions can be specified.2026-09-16T14:27:20.052951+00:00Nightly Release Notestag:trvny.github.io,2024:feedseek/mozilla/02c29629318b8cbeMozilla and Mistral: Partnering to expand AI competition and preserve user choice2026-09-16T08:00:00+00:00The AI race is shifting. Again. Practically overnight, competition has expanded from “which AI model is best?” to a new high-stakes battle over which models people can access, through which products, and whether people have meaningful choice about AI at all. In response, Mozilla and Mistral today announced a partnership built on a shared idea: […] The post Mozilla and Mistral: Partnering to expand AI competition and preserve user choice appeared first on The Mozilla Blog .2026-09-16T08:00:00+00:00Mozilla Blogtag:trvny.github.io,2024:feedseek/mozilla/32b8522211389e40This Week in Rust 6692026-09-16T04:00:00+00:00Hello and welcome to another issue of This Week in Rust!
Rust is a programming language empowering everyone to build reliable and efficient software.
This is a weekly summary of its progress and community.
Want something mentioned? Tag us at
@thisweekinrust.bsky.social on Bluesky or
@ThisWeekinRust on mastodon.social …2026-09-16T04:00:00+00:00Planet Mozillatag:trvny.github.io,2024:feedseek/mozilla/b7f20d0c90f22fbeMenus such as the List all tabs menu, the Settings menu, and Unified Search menu are now...2026-09-15T12:19:32.246623+00:00158.0a1 / Fixed / Bug 2037167 Menus such as the List all tabs menu, the Settings menu, and Unified Search menu are now visually consistent on Windows with a High Contrast theme. The user is now able to customize menu background color and text color when creating a custom theme in Windows Settings by setting Background and Text, respectively.2026-09-15T12:19:32.246623+00:00Nightly Release Notestag:trvny.github.io,2024:feedseek/mozilla/0198c4c7d8f3f975The WebAuthn conditional UI will now be shown on input elements with an autocomplete="webauthn"...2026-09-15T12:14:14.143402+00:00158.0a1 / Web Platform / Bug 2040812 The WebAuthn conditional UI will now be shown on input elements with an autocomplete="webauthn" attribute. Previously, the UI would only be shown on input elements with additional autofill field values, e.g. autocomplete="username webauthn" . ( Learn more )2026-09-15T12:14:14.143402+00:00Nightly Release Notestag:trvny.github.io,2024:feedseek/mozilla/96496462bc7ad22fYour Donations at Work: One Year of Sponsored Servo Development2026-09-15T00:00:00+00:00Last September, the Servo project announced that long-time maintainer Josh Bowman-Matthews (@jdm) would work part-time on improving the Servo contributor experience, entirely funded by the monthly donations on OpenCollective and GitHub.
In his own words, here is a look back over the past year!
First of all, I am enormously grateful to everyone who financially supports Servo, as those donations have enabled me to devote significant time to a project that I care a lot about.
Some highlights from 2026-09-15T00:00:00+00:00Planet Mozillatag:trvny.github.io,2024:feedseek/mozilla/30603c208ea06e23Firefox 115.41.0esr2026-09-15T00:00:00+00:00Firefox 115.41.0esr release notes.2026-09-15T00:00:00+00:00Release Notestag:trvny.github.io,2024:feedseek/mozilla/f5154908074388ebFirefox 140.16.0esr2026-09-15T00:00:00+00:00Firefox 140.16.0esr release notes.2026-09-15T00:00:00+00:00Release Notestag:trvny.github.io,2024:feedseek/mozilla/df1e99ac8f63836fFirefox 156.02026-09-15T00:00:00+00:00Firefox 156.0 release notes.2026-09-15T00:00:00+00:00Release Notestag:trvny.github.io,2024:feedseek/mozilla/d256a3ea0600ecfcFirefox for Android 156.02026-09-15T00:00:00+00:00Firefox for Android 156.0 release notes.2026-09-15T00:00:00+00:00Android Release Notestag:trvny.github.io,2024:feedseek/mozilla/a9d42ddb190a968bAdded support for the navigate option for the Notification constructor and...2026-09-14T12:31:11.113569+00:00158.0a1 / Web Platform / Bug 2069920 Added support for the navigate option for the Notification constructor and ServiceWorkerRegistration.showNotification() , which specifies a URL to navigate to when the notification is clicked.2026-09-14T12:31:11.113569+00:00Nightly Release Notestag:trvny.github.io,2024:feedseek/mozilla/3d5daaea8066365eStarting with Firefox 158, Firefox Nightly supports the corner-shape property, including all...2026-09-14T12:28:16.117272+00:00158.0a1 / Web Platform / Bug 2070927 Starting with Firefox 158, Firefox Nightly supports the corner-shape property, including all corner-*-shape longhand properties, allowing to change the shape of the corners of an element.2026-09-14T12:28:16.117272+00:00Nightly Release Notestag:trvny.github.io,2024:feedseek/mozilla/e02510cf313d6065Starting with Firefox 158, the Sanitizer API in Firefox Nightly builds sanitizes while parsing...2026-09-14T12:25:51.112859+00:00158.0a1 / Web Platform / Bug 2070497 Starting with Firefox 158, the Sanitizer API in Firefox Nightly builds sanitizes while parsing rather than the reified tree, extending sanitizing to scoped registries and declarative shadow roots.2026-09-14T12:25:51.112859+00:00Nightly Release Notestag:trvny.github.io,2024:feedseek/mozilla/302e38c00ccfe19fCheckout a Github pull request from one-off contributions2026-09-14T00:00:00+00:00EDIT: Updated to reference gh correctly. Thanks flod!
Sometimes on Github, I need to fetch a patch from a fork I don't typically see everyday so I can try it out locally. I use the line at the top of the patch which has a copy button next to it because it's convenient.
The common steps for this are:
Click the contributor's branch and go to their github fork repository.
Copy the repository link.
Add a new git remote with an alias (typically their username).
git fetch git checkout / Here is a on2026-09-14T00:00:00+00:00Planet Mozillatag:trvny.github.io,2024:feedseek/mozilla/5b03cd5a9cf4c7ceThe Need for Speed Controls – These Weeks in Firefox: Issue 2082026-09-11T17:32:05+00:00Highlights Firefox 154 went out today! Lots of goodies in there for our users, including support for NVIDIA GeForce NOW The new 2 week release cycle is now in effect. … Read more2026-09-11T17:32:05+00:00Firefox Nightlytag:trvny.github.io,2024:feedseek/mozilla/36a13ff193ccff65Perf wins from relocating MOZ_OBJDIR have a dev experience cost2026-09-11T00:00:00+00:00This is the opposite of what I wanted to write about: relocating your MOZ_OBJDIR outside of your source directory will make your IDE faster.
In mozilla-central (the firefox monorepo), a default object files directory is created within the same source directory. This is equivalent to the build/ directory you would typically see in other projects.
While this is typically fine, I've found that Android Studio indexes many of these files and that can be slow when you're not working across all the lay2026-09-11T00:00:00+00:00Planet Mozillatag:trvny.github.io,2024:feedseek/mozilla/ddfa073c60750775Move MOZ_OBJDIR outside of mozilla-central to speed up your IDE2026-09-10T22:57:55+00:00In mozilla-central (the firefox monorepo), a default object store directory is created within the source directory. This is equivalent to the build/ directory you would typically see in other projects.
While this is typically fine, I've found that Android Studio indexes these files and we don't (yet?) have the ability to inform it to not do so because an objdir needs to be evaluated from MOZ_OBJDIR first.
Over time, I ended up with these build directories that grew over time:
DirectoryLast touch2026-09-10T22:57:55+00:00Planet Mozillatag:trvny.github.io,2024:feedseek/mozilla/c47129576683e90eGame on: Play, share, and help shape Mozilla2026-09-10T15:05:52+00:00P.S. Apologies for the delay in publishing this edition on the community blog. The original newsletter was sent to subscribers on August 27. Firefox was leveling up in August! GeForce … Read more2026-09-10T15:05:52+00:00Planet Mozillatag:trvny.github.io,2024:feedseek/mozilla/b30653817654b113Tapping the search field on the Firefox for Android homepage now shows your recent searches2026-09-10T09:38:08.379870+00:00157.0a1 / New / Bug 2067606 Tapping the search field on the Firefox for Android homepage now shows your recent searches2026-09-10T09:38:08.379870+00:00Nightly Release Notestag:trvny.github.io,2024:feedseek/mozilla/8a80161607f2a55aHappy BMO Push Day! (20260908.1)2026-09-10T02:34:16+00:00Github Link
The following changes have been pushed to bugzilla.mozilla.org:
Bug 1205300 - Missing: related documentation “Reporting”
Bug 2068120 - Thunderbird access to “Iteration” and “Due Date” fields
Bug 2066252 - Prevent save if keyword checkin-needed-tb exists without target milestone
Bug 2070017 - Reinstate web bounty form
Bug 2059948 - Do not offer printable recovery codes to Duo users
Discuss these changes in the BMO Matrix Room
1 post - 1 participant
Read full topic2026-09-10T02:34:16+00:00Planet Mozillatag:trvny.github.io,2024:feedseek/mozilla/2fde35fba53107e3MozPhab 2.19.0 Released2026-09-09T20:59:02+00:00Bugs resolved in Moz-Phab 2.19.0:
bug 1987220 moz-phab patch --apply-to here should apply to the original base revision and rebase, rather than applying the raw diff on HEAD
bug 2016442 add moz-phab list subcommand
Discuss these changes in #engineering-workflow on Slack or #Conduit Matrix.
1 post - 1 participant
Read full topic2026-09-09T20:59:02+00:00Planet Mozillatag:trvny.github.io,2024:feedseek/mozilla/42cdb63fb0441a78Desktop Settings: Removing technical jargon2026-09-09T15:25:40+00:00Our goal for this phase of work is to remove the technical jargon, use plain language, and make it effortless for everyone to make informed decisions about their settings. With over 250 blocks of settings content to untangle, we aimed for incremental improvements rather than striving for perfection. While our previous research leaned heavily on […] The post Desktop Settings: Removing technical jargon appeared first on The Thunderbird Blog .2026-09-09T15:25:40+00:00Thunderbird Blogtag:trvny.github.io,2024:feedseek/mozilla/2c8cd24826c3a51fThis Week in Rust 6682026-09-09T04:00:00+00:00Hello and welcome to another issue of This Week in Rust!
Rust is a programming language empowering everyone to build reliable and efficient software.
This is a weekly summary of its progress and community.
Want something mentioned? Tag us at
@thisweekinrust.bsky.social on Bluesky or
@ThisWeekinRust on mastodon.social …2026-09-09T04:00:00+00:00Planet Mozillatag:trvny.github.io,2024:feedseek/mozilla/f7b296ae4d4d1056Motion, Colour, Captions, Kit – These Weeks in Firefox: Issue 2072026-09-08T18:38:38+00:00Highlights Want some Kit? Check out the store! Sebastian Zartner [:sebo] added a panel to expose @media emulation (#1692434) and provided a way to emulate @media (prefers-reduced-motion: reduce) (#1477920) More … Read more2026-09-08T18:38:38+00:00Firefox Nightlytag:trvny.github.io,2024:feedseek/mozilla/0e66aa02d41f1af9Fixed the Vertical Tabs sidebar not reappearing when the cursor moves to the edge of the screen...2026-09-08T08:12:57.601473+00:00157.0a1 / Fixed / Bug 2064638 Fixed the Vertical Tabs sidebar not reappearing when the cursor moves to the edge of the screen in full screen mode.2026-09-08T08:12:57.601473+00:00Nightly Release Notestag:trvny.github.io,2024:feedseek/mozilla/e8d412e814470ccaImproved audio/video synchronization when changing playback rate on HTMLMediaElement.2026-09-07T10:05:10.290773+00:00157.0a1 / Fixed / Bug 1955841 Improved audio/video synchronization when changing playback rate on HTMLMediaElement .2026-09-07T10:05:10.290773+00:00Nightly Release Notestag:trvny.github.io,2024:feedseek/mozilla/c8d8e81c7ef97b45Firefox now supports the chain value for the CSS overscroll-behavior property.2026-09-07T09:36:39.904006+00:00157.0a1 / Web Platform / Bug 2036966 Firefox now supports the chain value for the CSS overscroll-behavior property.2026-09-07T09:36:39.904006+00:00Nightly Release Notestag:trvny.github.io,2024:feedseek/mozilla/786e981b568df4b3Starting with Firefox 155, pages can load faster, with Happy Eyeballs v3 trying several ways of...2026-09-07T09:17:00.382786+00:00157.0a1 / New / Bug 2067488 Starting with Firefox 155, pages can load faster, with Happy Eyeballs v3 trying several ways of connecting to a website at once and using whichever succeeds first.2026-09-07T09:17:00.382786+00:00Nightly Release Notestag:trvny.github.io,2024:feedseek/mozilla/fc731571c47d4b42Rust debugging survey 2026 results2026-09-07T00:00:00+00:00One of the biggest challenges Rust developers report in our
annual surveys is a subpar debugging experience. So, back
in February, we ran our first Rust Debugging Survey,
in the hopes of identifying how Rust developers are using debuggers and what
problems they are facing when doing so. We received over 2,300 responses, and
we'd like to thank everyone who took the time to participate in the survey!
In this report, we'll go over some of the results of the survey. If you'd like,
you can also check2026-09-07T00:00:00+00:00Planet Mozillatag:trvny.github.io,2024:feedseek/mozilla/f1483ed914e8c900Firefox 155.0.12026-09-04T00:00:00+00:00Firefox 155.0.1 release notes.2026-09-04T00:00:00+00:00Release Notestag:trvny.github.io,2024:feedseek/mozilla/862c6d7c7d7f1f30Firefox for Android 155.0.12026-09-04T00:00:00+00:00Firefox for Android 155.0.1 release notes.2026-09-04T00:00:00+00:00Android Release Notestag:trvny.github.io,2024:feedseek/mozilla/499a9292e8d773b0HDR videos encoded as 8bit color formats now properly display as HDR in most cases, this fixes...2026-09-03T07:56:54.829049+00:00157.0a1 / Fixed / Bug 2008887 HDR videos encoded as 8bit color formats now properly display as HDR in most cases, this fixes several cases of dull gray looking videos that should have been more vibrant.2026-09-03T07:56:54.829049+00:00Nightly Release Notestag:trvny.github.io,2024:feedseek/mozilla/46488d9794257890Thunderbird Desktop New Protocol Support: Microsoft Graph API2026-09-02T19:58:47+00:00As many of you know, Microsoft will be disabling Exchange Web Services (EWS) support on its Microsoft 365 platform later this year. The Thunderbird Desktop team has been hard at work to ensure continuity of functionality through this transition, and today we are pleased to announce the release of native Thunderbird support for the Microsoft […] The post Thunderbird Desktop New Protocol Support: Microsoft Graph API appeared first on The Thunderbird Blog .2026-09-02T19:58:47+00:00Thunderbird Blogtag:trvny.github.io,2024:feedseek/mozilla/f34bfbf55750d9e1AI on your terms: Firefox meets you where you are2026-09-02T13:00:00+00:00People feel differently about AI, and here at Firefox, we think that is completely reasonable. Something else that is completely reasonable: deciding for yourself how and when you engage with AI features. For some of you, AI is part of your everyday life, whether you are using it to summarize a large amount of information, […] The post AI on your terms: Firefox meets you where you are appeared first on The Mozilla Blog .2026-09-02T13:00:00+00:00Mozilla Blogtag:trvny.github.io,2024:feedseek/mozilla/cbcb0da5706974f9Introducing Ad Blocker for Firefox on iOS: More control, fewer distractions2026-09-01T12:45:52+00:00There’s only so much room on your screen. Pop-ups, overlays, and ads can take over fast, getting between you and what you came to do. That’s where Ad Blocker for Firefox on iOS comes in: a built-in option that blocks many third-party ads and ad-related trackers before they load, helping reduce clutter and distractions while […] The post Introducing Ad Blocker for Firefox on iOS: More control, fewer distractions appeared first on The Mozilla Blog .2026-09-01T12:45:52+00:00Mozilla Blogtag:trvny.github.io,2024:feedseek/mozilla/f59baf349ad39181Firefox 115.40.0esr2026-09-01T00:00:00+00:00Firefox 115.40.0esr release notes.2026-09-01T00:00:00+00:00Release Notestag:trvny.github.io,2024:feedseek/mozilla/a8ef9273501222e6Firefox 140.15.0esr2026-09-01T00:00:00+00:00Firefox 140.15.0esr release notes.2026-09-01T00:00:00+00:00Release Notestag:trvny.github.io,2024:feedseek/mozilla/6ec679cbdcf626f2Firefox 155.02026-09-01T00:00:00+00:00Firefox 155.0 release notes.2026-09-01T00:00:00+00:00Release Notestag:trvny.github.io,2024:feedseek/mozilla/e601fa8ca7fb9b1bFirefox for Android 155.02026-09-01T00:00:00+00:00Firefox for Android 155.0 release notes.2026-09-01T00:00:00+00:00Android Release Notestag:trvny.github.io,2024:feedseek/mozilla/3754fa3a3840debbFirefox now supports the at-rule() function for @supports. This allows authors to detect for...2026-08-31T18:56:49.415099+00:00157.0a1 / Web Platform / Bug 2060755 Firefox now supports the at-rule() function for @supports . This allows authors to detect for browser support of specific at-rules, such as @supports at-rule(@scope) .2026-08-31T18:56:49.415099+00:00Nightly Release Notestag:trvny.github.io,2024:feedseek/mozilla/159963e39b6c436eFixed the address bar searching for the typed text instead of opening the selected suggestion...2026-08-31T18:50:26.695719+00:00157.0a1 / Fixed / Bug 2057763 Fixed the address bar searching for the typed text instead of opening the selected suggestion when a page was still loading, such as shortly after Firefox started.2026-08-31T18:50:26.695719+00:00Nightly Release Notestag:trvny.github.io,2024:feedseek/mozilla/6f2b4133602d3d9bFirefox's built-in PDF viewer now starts up to 45% faster.2026-08-30T14:01:20.195995+00:00156.0a1 / Changed / Bug 1966721 Firefox's built-in PDF viewer now starts up to 45% faster.2026-08-30T14:01:20.195995+00:00Nightly Release Notestag:trvny.github.io,2024:feedseek/mozilla/66f25887bf24be65Starting with Firefox 156, in Nightly builds, the search bar on the new tab is a real search bar...2026-08-27T16:01:28.937321+00:00156.0a1 / New / Bug 2062212 Starting with Firefox 156, in Nightly builds, the search bar on the new tab is a real search bar now, showing results on the page instead of sending you to the address bar.2026-08-27T16:01:28.937321+00:00Nightly Release Notestag:trvny.github.io,2024:feedseek/mozilla/1337eba2bfd993f8Icons! Lots of them! – These Weeks in Firefox: Issue 2062026-08-25T17:43:36+00:00Highlights Starting in Firefox 154, we’ve added a new capability for changing the default browser icon for Windows (Windows-only, for now, and not MSIX / Store installs) in about:settings#appearance! Notice … Read more2026-08-25T17:43:36+00:00Firefox Nightlytag:trvny.github.io,2024:feedseek/mozilla/b93f8a0d8169e50bFirefox 154.0.12026-08-25T00:00:00+00:00Firefox 154.0.1 release notes.2026-08-25T00:00:00+00:00Release Notestag:trvny.github.io,2024:feedseek/mozilla/cd6aa9e701d50224Firefox for Android 154.0.12026-08-25T00:00:00+00:00Firefox for Android 154.0.1 release notes.2026-08-25T00:00:00+00:00Android Release Notestag:trvny.github.io,2024:feedseek/mozilla/2f17d08cc645b36aIntent to Ship: JPEG XL2026-08-24T15:32:15+00:00It isn’t often that new image formats land in browsers. In the early 2000s we had JPEG, GIF, and PNG. The 2010s gave us WebP, which was a modest step up from JPEG. But the 2020s have given us two new image formats that are a big step up from previous formats: AVIF and JPEG […] The post Intent to Ship: JPEG XL appeared first on Mozilla Hacks - the Web developer blog .2026-08-24T15:32:15+00:00Mozilla Hackstag:trvny.github.io,2024:feedseek/mozilla/7ebfa1fddd9fcba4A New Framework for Open Source AI2026-08-20T15:57:30+00:00Open or closed AI isn’t a fringe question anymore; it’s a live policy debate, with real consequences for who gets to build, audit, and compete in the AI ecosystem. But as that debate plays out in Washington, Brussels, and beyond, the harder questions are still very much up for discussion. What does meaningful openness actually […] The post A New Framework for Open Source AI appeared first on The Mozilla Blog .2026-08-20T15:57:30+00:00Mozilla Blogtag:trvny.github.io,2024:feedseek/mozilla/2235a056be41756eThe wait is over. NVIDIA GeForce NOW adds Firefox to its supported browser lineup.2026-08-18T14:58:48+00:00Gamers have asked for GeForce NOW support for years. Today, NVIDIA made it official, opening up GeForce RTX-powered play to Firefox on Windows. Firefox users can now stream more than 2,000 PC games from virtually anywhere, no downloads, installs, or hardware upgrades required, just a Windows PC and a browser. Gaming: one of the web’s […] The post The wait is over. NVIDIA GeForce NOW adds Firefox to its supported browser lineup. appeared first on The Mozilla Blog .2026-08-18T14:58:48+00:00Mozilla Blogtag:trvny.github.io,2024:feedseek/mozilla/ad96bbb323bcc7b3A billion searches a year, now built in: Startpage comes to Firefox2026-08-18T14:57:52+00:00Firefox users were choosing Startpage long before today — to the tune of more than a billion searches a year, every one of them required some assembly: an extension, a manual setting, a workaround. Today, starting with Firefox 154, that choice becomes as easy as head to the drop-down menu, hit ‘select,’ and start searching. […] The post A billion searches a year, now built in: Startpage comes to Firefox appeared first on The Mozilla Blog .2026-08-18T14:57:52+00:00Mozilla Blogtag:trvny.github.io,2024:feedseek/mozilla/0b6256022d89371dSmart Window: Finish what you start online2026-08-18T13:06:06+00:00Update on September 16, 2026: Smart Window is now rolling out in France, marking its first expansion beyond North America. People in France will be able to download and try the Smart Window beta in French. Download Smart Window here and share your feedback with us on Mozilla Connect. Original post from August 2026: Browsers […] The post Smart Window: Finish what you start online appeared first on The Mozilla Blog .2026-08-18T13:06:06+00:00Mozilla Blogtag:trvny.github.io,2024:feedseek/mozilla/4146a86521e34b6cFirefox and Exa: Building AI search around people, not platforms2026-08-18T13:05:34+00:00AI has changed how we browse. Full stop. The real question is whether AI leads to one browser experience for everyone, or gives people more ways to make the browser work for them. Firefox was always built to give users an alternative to the status quo, and our approach with AI is no different. Much […] The post Firefox and Exa: Building AI search around people, not platforms appeared first on The Mozilla Blog .2026-08-18T13:05:34+00:00Mozilla Blogtag:trvny.github.io,2024:feedseek/mozilla/7a6e3a1f20fc19a5Firefox 115.39.0esr2026-08-18T00:00:00+00:00Firefox 115.39.0esr release notes.2026-08-18T00:00:00+00:00Release Notestag:trvny.github.io,2024:feedseek/mozilla/eaaa357c4ffa423aFirefox 140.14.0esr2026-08-18T00:00:00+00:00Firefox 140.14.0esr release notes.2026-08-18T00:00:00+00:00Release Notestag:trvny.github.io,2024:feedseek/mozilla/500a9905ae2f0f69Firefox 154.02026-08-18T00:00:00+00:00Firefox 154.0 release notes.2026-08-18T00:00:00+00:00Release Notestag:trvny.github.io,2024:feedseek/mozilla/9391e8dae3b67d87Firefox for Android 154.02026-08-18T00:00:00+00:00Firefox for Android 154.0 release notes.2026-08-18T00:00:00+00:00Android Release Notestag:trvny.github.io,2024:feedseek/mozilla/3a6c9b9d7c4a352fFirefox 153.0.42026-08-11T00:00:00+00:00Firefox 153.0.4 release notes.2026-08-11T00:00:00+00:00Release Notestag:trvny.github.io,2024:feedseek/mozilla/36411c01e95c8a7aFirefox for Android 153.0.42026-08-11T00:00:00+00:00Firefox for Android 153.0.4 release notes.2026-08-11T00:00:00+00:00Android Release Notestag:trvny.github.io,2024:feedseek/mozilla/d166e3aeb4f6c38fDesktop Calendar: A Design Journey2026-08-10T18:59:27+00:00Hello, Thunderbird community and followers of the blog! This is Jesse from the design team. Today’s post is about our recent journey in redesigning the calendar portion of Thunderbird, and what you can expect us to deliver in the near future. The calendar is a key part of any productivity toolset, from your PC Desktop […] The post Desktop Calendar: A Design Journey appeared first on The Thunderbird Blog .2026-08-10T18:59:27+00:00Thunderbird Blogtag:trvny.github.io,2024:feedseek/mozilla/ae9399ffb67c3baaFirefox 153.0.32026-08-04T00:00:00+00:00Firefox 153.0.3 release notes.2026-08-04T00:00:00+00:00Release Notestag:trvny.github.io,2024:feedseek/mozilla/b5cb6ce2facfd871Firefox for Android 153.0.32026-08-04T00:00:00+00:00Firefox for Android 153.0.3 release notes.2026-08-04T00:00:00+00:00Android Release Notestag:trvny.github.io,2024:feedseek/mozilla/406dfde30d0b29dcFirefox for Android 153.0.22026-07-31T14:18:19.495366+00:00Firefox for Android 153.0.2 release notes.2026-07-31T14:18:19.495366+00:00Android Release Notestag:trvny.github.io,2024:feedseek/mozilla/862ae5fe6b9bd0e9Mobile Progress Report: July 20262026-07-30T19:00:00+00:00Thunderbird Mobile is moving forward with large steps on both platforms we support. On iOS, we’re working on the very foundation of a new app—our first built from scratch—and continuing to make progress in bringing the Thunderbird for iOS app to the App Store. For Android, it’s a matter of updating what we have in […] The post Mobile Progress Report: July 2026 appeared first on The Thunderbird Blog .2026-07-30T19:00:00+00:00Thunderbird Blogtag:trvny.github.io,2024:feedseek/mozilla/c2c6296e26b92940Firefox 153.0.12026-07-28T00:00:00+00:00Firefox 153.0.1 release notes.2026-07-28T00:00:00+00:00Release Notestag:trvny.github.io,2024:feedseek/mozilla/992f4f81db671b78Firefox for Android 153.0.12026-07-28T00:00:00+00:00Firefox for Android 153.0.1 release notes.2026-07-28T00:00:00+00:00Android Release Notestag:trvny.github.io,2024:feedseek/mozilla/a69353a1de965f36Try the New Firefox Design in Nightly2026-07-27T15:00:40+00:00This past May, we shared our vision for the future of Firefox. Starting today, you can try out the next design evolution of Firefox in Nightly. It’s still Firefox, now … Read more2026-07-27T15:00:40+00:00Firefox Nightlytag:trvny.github.io,2024:feedseek/mozilla/741e7ccaca8d1921Thunderbird 153 “Meadow” is out now!2026-07-22T21:45:41+00:00As we head into the summer months, a new Extended Support Release (ESR) is in full bloom. Thunderbird 153 “Meadow” is out now, and from all of us at MZLA, the Thunderbird Council, and our global community of contributors, we can’t wait for you to try it out. “Meadow” builds on Thunderbird 140 “Eclipse,” along […] The post Thunderbird 153 “Meadow” is out now! appeared first on The Thunderbird Blog .2026-07-22T21:45:41+00:00Thunderbird Blogtag:trvny.github.io,2024:feedseek/mozilla/0ec24acceeb8b6ceYour Android tabs just got a lot more organized with Firefox2026-07-21T16:00:00+00:00Tabs pile up fast on mobile. Imagine you’re planning a summer barbecue, and you start by searching for the best rib recipe. Twenty minutes later, you’re 17 tabs deep: comparing marinades, debating side dishes, checking the weather, making a grocery list and adding songs to a playlist. None of those tabs are organized. They’re mixed […] The post Your Android tabs just got a lot more organized with Firefox appeared first on The Mozilla Blog .2026-07-21T16:00:00+00:00Mozilla Blogtag:trvny.github.io,2024:feedseek/mozilla/7bdb6e72386e4d21Quick Answers: For the questions in between2026-07-21T16:00:00+00:00You’re planning a trip. Reading an article. Following a recipe. Then a question pops into your head. Sometimes it leads down a rabbit hole – with more searches, more tabs and plenty to explore. Other times, you just need a little context so you can get back to what you were doing. That’s why we’re […] The post Quick Answers: For the questions in between appeared first on The Mozilla Blog .2026-07-21T16:00:00+00:00Mozilla Blogtag:trvny.github.io,2024:feedseek/mozilla/a90d0210744f6427Experience Better Browsing: Introducing Native Containers in Firefox 1532026-07-21T16:00:00+00:00Today, we’re excited to announce the Preview of Containers in Firefox version 153, which lets you keep separate parts of your online life (work, shopping, personal, banking) logged into different accounts in the same browser window, but keeps your cookies and ad tracking isolated inside each container. This means that stuff you do in one […] The post Experience Better Browsing: Introducing Native Containers in Firefox 153 appeared first on The Mozilla Blog .2026-07-21T16:00:00+00:00Mozilla Blogtag:trvny.github.io,2024:feedseek/mozilla/3a37af9424057102Firefox 115.38.0esr2026-07-21T00:00:00+00:00Firefox 115.38.0esr release notes.2026-07-21T00:00:00+00:00Release Notestag:trvny.github.io,2024:feedseek/mozilla/f2c5ab78cbc7734aFirefox 140.13.0esr2026-07-21T00:00:00+00:00Firefox 140.13.0esr release notes.2026-07-21T00:00:00+00:00Release Notestag:trvny.github.io,2024:feedseek/mozilla/c1aed8a849f6991dFirefox 153.02026-07-21T00:00:00+00:00Firefox 153.0 release notes.2026-07-21T00:00:00+00:00Release Notestag:trvny.github.io,2024:feedseek/mozilla/1532dc03a8c47272Firefox for Android 153.02026-07-21T00:00:00+00:00Firefox for Android 153.0 release notes.2026-07-21T00:00:00+00:00Android Release Notestag:trvny.github.io,2024:feedseek/mozilla/7c0a65942f495bdfCommunity Office Hours: A Thundermail Update2026-07-14T19:36:40+00:00Our Community Office Hours series is all about connecting with the people behind Thunderbird and our products, and sharing the work that’s happening behind the scenes. These conversations are a chance to learn more about the direction of our projects and to hear directly from the people making it happen. In this episode, we are […] The post Community Office Hours: A Thundermail Update appeared first on The Thunderbird Blog .2026-07-14T19:36:40+00:00Thunderbird Blogtag:trvny.github.io,2024:feedseek/mozilla/891f5ac09438df4dOver The Edge 2.0: what independent researchers found about browser choice on Windows2026-07-14T12:30:00+00:00Two years ago Mozilla asked two leading experts on deceptive design, Dr. Harry Brignull and Cennydd Bowles, to look at how Microsoft was treating people who tried to use a different browser on Windows. Their report, Over The Edge, documented a pattern of design choices in Windows, Edge, and Bing that nudged, pressured, and at […] The post Over The Edge 2.0: what independent researchers found about browser choice on Windows appeared first on The Mozilla Blog .2026-07-14T12:30:00+00:00Mozilla Blogtag:trvny.github.io,2024:feedseek/mozilla/05cad3c9cc67c368Mozilla’s Inaugural ‘State of Open Source AI’ Report Is Here2026-07-14T12:00:00+00:00Open source AI has crossed a threshold. For years the debate has centered around whether open models could ever compete with closed ones. This is no longer a debate we should be having. Today Mozilla is publishing its inaugural State of Open Source AI report, built on new analysis and a global survey of 950+ […] The post Mozilla’s Inaugural ‘State of Open Source AI’ Report Is Here appeared first on The Mozilla Blog .2026-07-14T12:00:00+00:00Mozilla Blogtag:trvny.github.io,2024:feedseek/mozilla/d58deaf49f003894Firefox 152.0.62026-07-14T00:00:00+00:00Firefox 152.0.6 release notes.2026-07-14T00:00:00+00:00Release Notestag:trvny.github.io,2024:feedseek/mozilla/2344d9f00b4e20f7Firefox for Android 152.0.62026-07-14T00:00:00+00:00Firefox for Android 152.0.6 release notes.2026-07-14T00:00:00+00:00Android Release Notestag:trvny.github.io,2024:feedseek/mozilla/449713f4f88225ebWrexham AFC and Firefox announce a multi-year, front-of-kit partnership2026-07-08T13:00:06+00:00We don’t put our name on much. So when we do, it means something. Starting with the 2026/27 season, Firefox is Wrexham AFC’s Official Web Browser Partner and front-of-kit sponsor on the men’s and women’s teams. More than 160 years old and nearly lost for good, the football club was saved by the community that […] The post Wrexham AFC and Firefox announce a multi-year, front-of-kit partnership appeared first on The Mozilla Blog .2026-07-08T13:00:06+00:00Mozilla Blogtag:trvny.github.io,2024:feedseek/mozilla/2ea71ccb912a262fDesktop settings research: what we learned from your feedback2026-07-07T18:56:45+00:00A few weeks ago, we conducted hour-long conversations with 10 of our users to dig deep into how you manage your preferences and configurations in Thunderbird desktop. While this specific research cycle focused on the desktop experience, our ultimate goal is a holistic strategy that ensures our mobile settings feel like a natural extension of […] The post Desktop settings research: what we learned from your feedback appeared first on The Thunderbird Blog .2026-07-07T18:56:45+00:00Thunderbird Blogtag:trvny.github.io,2024:feedseek/mozilla/e8a7e9e512c7d77eFirefox 152.0.52026-07-07T00:00:00+00:00Firefox 152.0.5 release notes.2026-07-07T00:00:00+00:00Release Notestag:trvny.github.io,2024:feedseek/mozilla/b496557b09f0e75aFirefox for Android 152.0.52026-07-07T00:00:00+00:00Firefox for Android 152.0.5 release notes.2026-07-07T00:00:00+00:00Android Release Notestag:trvny.github.io,2024:feedseek/mozilla/a146f220947380d5Firefox for Android 152.0.42026-06-30T00:00:00+00:00Firefox for Android 152.0.4 release notes.2026-06-30T00:00:00+00:00Android Release Notestag:trvny.github.io,2024:feedseek/mozilla/2907bd52560bdc6eThunderbird Monthly Development Digest: June 20262026-06-25T18:34:34+00:00Welcome back from the Thunderbird development team! The past few months have been exceptionally busy across the project. As we approach the midpoint of the year, we’ve been focused on a mixture of delivering user-facing features, investing in long-term architectural improvements, and preparing for the next ESR cycle. A significant amount of effort has gone […] The post Thunderbird Monthly Development Digest: June 2026 appeared first on The Thunderbird Blog .2026-06-25T18:34:34+00:00Thunderbird Blogtag:trvny.github.io,2024:feedseek/mozilla/9c9e0d492788a6daThe web is evolving. So are we.2026-06-23T17:59:27+00:00Earlier this month, we officially stood up Mozilla.org: a new 501(c)(3) nonprofit created to steward the long term success of the Mozilla Project. Over the last year or so, I’ve said a lot about how AI is reshaping the web — and how we need to simultaneously stand up for the open internet Mozilla helped build […] The post The web is evolving. So are we. appeared first on The Mozilla Blog .2026-06-23T17:59:27+00:00Mozilla Blogtag:trvny.github.io,2024:feedseek/mozilla/96b1f8245c2d33acThundermail June 2026 update: what we learned after the first few waves of invites2026-06-23T17:24:23+00:00Over the past several weeks, we have been welcoming early users from our waitlist into Thundermail, a few waves at a time. Many of you are now setting up your accounts, trying things out, and sharing your thoughts with us. Naming updates You may have noticed that we are now saying Thundermail more often, and […] The post Thundermail June 2026 update: what we learned after the first few waves of invites appeared first on The Thunderbird Blog .2026-06-23T17:24:23+00:00Thunderbird Blogtag:trvny.github.io,2024:feedseek/mozilla/068a3bf93615a92aKeeping the Web Open and Private in the Bot Era2026-06-23T15:56:54+00:00If you’ve been running into endless CAPTCHAS or website login requests lately, you’re not imagining things. Websites, facing a rising tide of abusive traffic from bots, are adopting increasingly aggressive countermeasures, damaging user’s experience of the web, their privacy and open access to the web. In this post, we’ll talk about a new initiative we’re […] The post Keeping the Web Open and Private in the Bot Era appeared first on The Mozilla Blog .2026-06-23T15:56:54+00:00Mozilla Blogtag:trvny.github.io,2024:feedseek/mozilla/79f8344eb747ac68PACT: Anonymous Credentials for the Web2026-06-23T15:29:52+00:00This is the technical companion to our update on Distilled, “Keeping the web open and private in the bot era.” Here we take a deeper look at the problem space, the design we’re proposing, and the problems still left to solve. Bots (and privacy-preserving browsers) not welcome Browse a news site in a private window. Shop […] The post PACT: Anonymous Credentials for the Web appeared first on Mozilla Hacks - the Web developer blog .2026-06-23T15:29:52+00:00Mozilla Hackstag:trvny.github.io,2024:feedseek/mozilla/990fc90101e09b3fFirefox for Android 152.0.22026-06-23T00:00:00+00:00Firefox for Android 152.0.2 release notes.2026-06-23T00:00:00+00:00Android Release Notestag:trvny.github.io,2024:feedseek/mozilla/4db5bebb7a27e901Eyedropper Quick Action, geckodriver 0.37, and Tighter File Permissions – These Weeks in Firefox: Issue 2052026-06-22T19:57:24+00:00Highlights Dao added a new Eyedropper quick action! Check it out by typing “color” or “eyedropper” in the URL bar (Bug 1803575) on Nightly. Henrik Skupin released geckodriver 0.37.0, which … Read more2026-06-22T19:57:24+00:00Firefox Nightlytag:trvny.github.io,2024:feedseek/mozilla/1da3fc771681415dFirefox is easier than ever to customize2026-06-16T12:58:29+00:00Firefox gives you many ways to make the browser your own, from privacy settings and AI controls to tab management, custom colors, and more. As we continue to improve Firefox, you get more control over how it works for you. Today, we’re introducing a redesigned settings experience that makes your options easier to find, understand, […] The post Firefox is easier than ever to customize appeared first on The Mozilla Blog .2026-06-16T12:58:29+00:00Mozilla Blogtag:trvny.github.io,2024:feedseek/mozilla/76653eb27f5b3bcdWhat’s new in Firefox this June, and what’s next on the Firefox roadmap2026-06-16T12:57:54+00:00Firefox has been busy introducing updates across productivity, privacy and AI. From Project Nova and browser-wide AI controls to expanded privacy protections and new ways to stay organized, the goal is simple: help you spend less time managing your browser and more time getting things done online. But building the best browser isn’t just about […] The post What’s new in Firefox this June, and what’s next on the Firefox roadmap appeared first on The Mozilla Blog .2026-06-16T12:57:54+00:00Mozilla Blogtag:trvny.github.io,2024:feedseek/mozilla/f19993bfe9dbfd43Mobile Progress Report: June 20262026-06-16T11:00:00+00:00The past month was busy; the theme was evolution. We went into this quarter with our own ideas for what we wanted to accomplish. However, our users had better ideas. With the release of Thunderbird’s own mail service, Thundermail, the need for a better account settings import process across our services and apps became vital. […] The post Mobile Progress Report: June 2026 appeared first on The Thunderbird Blog .2026-06-16T11:00:00+00:00Thunderbird Blogtag:trvny.github.io,2024:feedseek/mozilla/397ef26af6e3725dGiving You More Control – These Weeks in Firefox: Issue 2042026-06-15T17:26:57+00:00Highlights Maxx Crawford added a pref to hide the New Tab logo so users can opt out of branding without altering page layout or resorting to CSS overrides. Harshit enabled … Read more2026-06-15T17:26:57+00:00Firefox Nightlytag:trvny.github.io,2024:feedseek/mozilla/2ed435349acfeeaaMore Kit, More Control – These Weeks in Firefox: Issue 2032026-06-03T18:27:38+00:00Highlights James enabled adaptive autofill in Nightly for testing, which we believe should provide better results in the URL bar when doing autocomplete! Jack updated the illustrations shown on some … Read more2026-06-03T18:27:38+00:00Firefox Nightlytag:trvny.github.io,2024:feedseek/mozilla/e9dc3ebce799b3bfBackup for a Rainy Day – These Weeks in Firefox: Issue 2022026-06-01T18:15:45+00:00Highlights The profile backup mechanism has been enabled by default for all desktop platforms in Nightly, as well as Beta! The current plan is to have this ride out to … Read more2026-06-01T18:15:45+00:00Firefox Nightlytag:trvny.github.io,2024:feedseek/mozilla/571a1bf722bb1499Announcing Web Serial Support in Firefox2026-05-21T18:00:05+00:00Support for Web Serial in Firefox 151 for Desktop Firefox can now connect directly to microcontrollers, development boards, 3D printers, power meters, and other serial-connected hardware from the web. Starting in Firefox 151 for Desktop, support for the Web Serial API allows web applications to communicate with compatible devices without requiring native software. Web Serial […] The post Announcing Web Serial Support in Firefox appeared first on Mozilla Hacks - the Web developer blog .2026-05-21T18:00:05+00:00Mozilla Hackstag:trvny.github.io,2024:feedseek/mozilla/07c12a9287b744fdSaying goodbye to asm.js2026-05-20T17:00:00+00:00Disabling asm.js optimizations in SpiderMonkey2026-05-20T17:00:00+00:00SpiderMonkeytag:trvny.github.io,2024:feedseek/mozilla/755187b85b461c9dSettings Are Getting a New Look!2026-05-20T15:53:01+00:00The redesign of Firefox Settings is now enabled by default in Nightly! With this change, we are making it easier for people to customize Firefox and discover the controls that … Read more2026-05-20T15:53:01+00:00Firefox Nightlytag:trvny.github.io,2024:feedseek/mozilla/50a44e9b05630b15Community Office Hours: Contributor Spotlight on Bogomil Shopov2026-05-08T19:15:13+00:00If you have ever used Thunderbird in Bulgarian, the subject of this month’s office hours is one of the contributors who made that possible! Office Hours hosts Heather and Monica have been lucky enough to chat with long-time localizer Bogamil Shopov at conferences like FOSDEM. Now, they’re sitting down to talk to him about how […] The post Community Office Hours: Contributor Spotlight on Bogomil Shopov appeared first on The Thunderbird Blog .2026-05-08T19:15:13+00:00Thunderbird Blogtag:trvny.github.io,2024:feedseek/mozilla/01a7fd40374b1110Behind the Scenes Hardening Firefox with Claude Mythos Preview2026-05-07T16:01:21+00:00Two weeks ago we announced that we had identified and fixed an unprecedented number of latent security bugs in Firefox with the help of Claude Mythos Preview and other AI models. In this post, we’ll go into more detail about how we approached this work, what we found, and advice for other projects on making […] The post Behind the Scenes Hardening Firefox with Claude Mythos Preview appeared first on Mozilla Hacks - the Web developer blog .2026-05-07T16:01:21+00:00Mozilla Hackstag:trvny.github.io,2024:feedseek/mozilla/118e4e099071fad3Trustworthy JavaScript for the Open Web2026-05-05T15:49:11+00:00The open web is a critical platform for applications that handle highly sensitive data, from private communications to financial transactions and medical records. Traditionally, servers are trusted to deliver the appropriate code and resources for their web applications to browsers, who then provide a secure and isolated environment for their execution. In some circumstances, this […] The post Trustworthy JavaScript for the Open Web appeared first on Mozilla Hacks - the Web developer blog .2026-05-05T15:49:11+00:00Mozilla Hackstag:trvny.github.io,2024:feedseek/mozilla/205d1dfded8934b1Import-ant Updates – These Weeks in Firefox: Issue 2012026-04-30T16:29:24+00:00Highlights Import attributes will be supported for WebExtensions, starting in Firefox 150! This allows WebExtension authors to import CSS module scripts and JSON into their JavaScript modules. Examples: import sheet … Read more2026-04-30T16:29:24+00:00Firefox Nightlytag:trvny.github.io,2024:feedseek/mozilla/3b615519ac2f8639Thunderbird Pro April 2026 Update2026-04-27T15:27:08+00:00One of the most exciting aspects of bringing Thunderbird Pro to life is the opportunity to build an email service from Thunderbird together with our community, giving users the control and freedom they expect without relying on third party email service providers. Over the past few months, we’ve been checking in with our community through […] The post Thunderbird Pro April 2026 Update appeared first on The Thunderbird Blog .2026-04-27T15:27:08+00:00Thunderbird Blogtag:trvny.github.io,2024:feedseek/mozilla/2398c09baafa6accVPN, Split View, and Other Goodies – These Weeks in Firefox: Issue 200!2026-04-27T14:21:43+00:00Highlights The VPN feature is rolling out to users in the United States, the United Kingdom, Germany and France! Read more about it here. And here’s more information about it … Read more2026-04-27T14:21:43+00:00Firefox Nightlytag:trvny.github.io,2024:feedseek/mozilla/4c4e36cb0dab5a6eMobile Progress Report – April 20262026-04-23T11:00:00+00:00It’s been a very busy couple of months as we’ve reworked processes & priorities and established a roadmap for both iOS and Android. We are determining how best we can coordinate with the community, and think that our roadmap for the year has a good balance of fixes and features. Today, I want to talk […] The post Mobile Progress Report – April 2026 appeared first on The Thunderbird Blog .2026-04-23T11:00:00+00:00Thunderbird Blogtag:trvny.github.io,2024:feedseek/mozilla/610ee451989c073fQR Codes, Speed Calculators, Better RAM Usage – These Weeks in Firefox: Issue 1992026-04-15T20:44:49+00:00Highlights Thanks to overholt, macOS Nightly now has support for sharing the current tab’s URL via QR Code (Right-click tab, Share > Generate QR Code). This is held to Nightly … Read more2026-04-15T20:44:49+00:00Firefox Nightlytag:trvny.github.io,2024:feedseek/mozilla/bcd8ded67c76cca7Benchmark Mode in SpiderMonkey2026-04-13T17:00:00+00:00Measuring performance without shooting youself in the foot (as badly)2026-04-13T17:00:00+00:00SpiderMonkeytag:trvny.github.io,2024:feedseek/mozilla/3f3e68adf731c366Thunderbird Monthly Development Digest: March 20262026-03-31T11:30:00+00:00Welcome back from the Thunderbird development team! Reflecting back, the first quarter of the year has been a mix of deep technical focus and forward-looking planning. Much of the team’s energy has gone into tackling some of the more complex, “gnarly” parts of our projects to land key milestones. In parallel, we’ve been laying the […] The post Thunderbird Monthly Development Digest: March 2026 appeared first on The Thunderbird Blog .2026-03-31T11:30:00+00:00Thunderbird Blogtag:trvny.github.io,2024:feedseek/mozilla/f994361a4264544aFirefox Developer Edition and Beta: Try out Mozilla’s .rpm package!2026-03-25T16:17:11+00:00In January, we introduced our Nightly package for RPM-based Linux distributions. Today, we are thrilled to announce it is now available for Firefox Beta! Firefox Beta is great for testing your sites in a version of Firefox that will reach regular users in the coming weeks. If you find any issues, please file them on […] The post Firefox Developer Edition and Beta: Try out Mozilla’s .rpm package! appeared first on Mozilla Hacks - the Web developer blog .2026-03-25T16:17:11+00:00Mozilla Hackstag:trvny.github.io,2024:feedseek/mozilla/01867ce51e8ea2d8Extension Theming Improvements and More – These Weeks in Firefox: Issue 1982026-03-20T17:34:25+00:00Highlights Starting with Firefox 150, Firefox Desktop’s theming internals have improved, allowing custom background images provided by built-in and custom themes to extend over the sidebar UI background – Bug … Read more2026-03-20T17:34:25+00:00Firefox Nightlytag:trvny.github.io,2024:feedseek/mozilla/3ef4d0596ba313edIntroducing our Public Roadmaps2026-03-19T19:26:26+00:00At Thunderbird, we firmly believe in the strength of listening to our community’s needs and wants, and balancing it with our resources and capabilities. While this has always been part of our ethos, we want to start 2026 by making our goals easier to read and comprehend at roadmaps.thunderbird.net, where you will find our roadmaps […] The post Introducing our Public Roadmaps appeared first on The Thunderbird Blog .2026-03-19T19:26:26+00:00Thunderbird Blogtag:trvny.github.io,2024:feedseek/mozilla/6b432f75821d3103VIDEO: Meet the New Support Team!2026-03-17T22:05:54+00:00Welcome to the first Community Office Hours of 2026! We’re all recovered from conferences in Brussels and California, and we’re talking to members of one of our newest teams: Support. Wait, hasn’t Thunderbird always had a support team? Surprisingly, no! We’ve had individual staff members responsible for different parts of our support efforts, but never […] The post VIDEO: Meet the New Support Team! appeared first on The Thunderbird Blog .2026-03-17T22:05:54+00:00Thunderbird Blogtag:trvny.github.io,2024:feedseek/mozilla/0a4c1651fb3d18eeFirefox Profiler Dark Mode and Updated Smart Window Prompts – These Weeks in Firefox: Issue 1972026-03-17T19:57:12+00:00Highlights Smart Window added contextual prompts for follow-ups bug 2012208 and conversation starters bug 2014946 SplitView is approaching completion in Nightly and hopes to ride the trains soon. If you … Read more2026-03-17T19:57:12+00:00Firefox Nightlytag:trvny.github.io,2024:feedseek/mozilla/3552b94c104f23f8Illustrating Roc’s World: A Spotlight on Michaela Martin2026-03-02T20:38:23+00:00Thunderbird’s mascot, Roc, is a bit of an unsung hero. If you’ve ever donated to the project, he’s the happy blue bird who thanks you for supporting our work. For the 2024 End of Year appeal, the Thunderbird team commissioned design artist Michaela Martin to broaden Roc’s world. Her whimsical illustration, which is also available […] The post Illustrating Roc’s World: A Spotlight on Michaela Martin appeared first on The Thunderbird Blog .2026-03-02T20:38:23+00:00Thunderbird Blogtag:trvny.github.io,2024:feedseek/mozilla/02491a159a76c039Why is WebAssembly a second-class language on the web?2026-02-26T16:02:36+00:00This post is an expanded version of a presentation I gave at the 2025 WebAssembly CG meeting in Munich. WebAssembly has come a long way since its first release in 2017. The first version of WebAssembly was already a great fit for low-level languages like C and C++, and immediately enabled many new kinds of […] The post Why is WebAssembly a second-class language on the web? appeared first on Mozilla Hacks - the Web developer blog .2026-02-26T16:02:36+00:00Mozilla Hackstag:trvny.github.io,2024:feedseek/mozilla/b58243c9d16e9081Goodbye innerHTML, Hello setHTML: Stronger XSS Protection in Firefox 1482026-02-24T13:00:02+00:00Cross-site scripting (XSS) remains one of the most prevalent vulnerabilities on the web. The new standardized Sanitizer API provides a straightforward way for web developers to sanitize untrusted HTML before inserting it into the DOM. Firefox 148 is the first browser to ship this standardized security enhancing API, advancing a safer web for everyone. We […] The post Goodbye innerHTML, Hello setHTML: Stronger XSS Protection in Firefox 148 appeared first on Mozilla Hacks - the Web developer blog 2026-02-24T13:00:02+00:00Mozilla Hackstag:trvny.github.io,2024:feedseek/mozilla/bcdaafc9631b4021Mobile Progress Report: February 20262026-02-13T15:19:23+00:00The first Mobile Progress Report of 2026 provides a high-level overview to our mobile plans and priorities for the coming year. Android Our primary focus this year revolves around a better user experience and includes a major push to improve quality. We want to make the app stable, reduce our bugs, and speed up our […] The post Mobile Progress Report: February 2026 appeared first on The Thunderbird Blog .2026-02-13T15:19:23+00:00Thunderbird Blogtag:trvny.github.io,2024:feedseek/mozilla/5f12a0768b8b5609Launching Interop 20262026-02-12T17:07:24+00:00The Interop Project is a cross-browser initiative to improve web compatibility in areas that offer the most benefit to both users and developers. The group, including Apple, Google, Igalia, Microsoft, and Mozilla, takes proposals of features that are well defined in a sufficiently stable web standard, and have good test suite coverage. Then, we come […] The post Launching Interop 2026 appeared first on Mozilla Hacks - the Web developer blog .2026-02-12T17:07:24+00:00Mozilla Hackstag:trvny.github.io,2024:feedseek/mozilla/9b8076e42cfe511eThunderbird Monthly Development Digest: February 20262026-02-11T17:50:15+00:00Welcome back to the Thunderbird blog and the first post of 2026! We’re rested, recharged, and ready to keep our community updated on all of our progress on the desktop and mobile clients and with Thunderbird Pro! Hello again from the Thunderbird development team! After a restful and reflective break over the December holidays, the […] The post Thunderbird Monthly Development Digest: February 2026 appeared first on The Thunderbird Blog .2026-02-11T17:50:15+00:00Thunderbird Blogtag:trvny.github.io,2024:feedseek/mozilla/ba241dd222d2dff6Firefox extensions for creatives2026-01-23T01:08:17+00:00From designers to writers, multi-media producers and more — if you perform creative work on a computer there’s a good chance you can find a browser extension to improve your process. Here’s a mix of practical Firefox extensions for a wide spectrum of creative cases… Extensions for visual artists, animators & designers Awesome Screenshot & Screen Recorder There are a lot of screenshot and recording tools out there, but few offer the sweet combination of intuitive control and a deep feature set li2026-01-23T01:08:17+00:00Add-ons Blogtag:trvny.github.io,2024:feedseek/mozilla/c14cb55150cce58aYouTube your way — browser extensions put you in charge of your video experience2026-01-22T23:57:17+00:00YouTube wants you to experience YouTube in prescribed ways. But with the right browser extension, you’re free to alter YouTube to taste. Change the way the site looks, behaves, and delivers your favorite videos. Enhancer for YouTube With dozens of customization features, Enhancer for YouTube has the power to dramatically reorient the way you watch videos. While a bunch of customization options may seem overwhelming, Enhancer for YouTube actually makes it very simple to navigate settings and sele2026-01-22T23:57:17+00:00Add-ons Blogtag:trvny.github.io,2024:feedseek/mozilla/5e63dd83a8f8662eFlipping Responsibility for Jobs in SpiderMonkey2026-01-15T17:00:00+00:00Changes are coming to job handling in SpiderMonkey2026-01-15T17:00:00+00:00SpiderMonkeytag:trvny.github.io,2024:feedseek/mozilla/e88c575a546956122025 Staff Pick Add-ons2026-01-08T14:59:52+00:00While nearly half of all Firefox users have installed an add-on, it’s safe to say nearly all Firefox staffers use add-ons. I polled a few of my peers and here are some of our staff favorite add-ons of 2025… Falling Snow Animated Theme Enjoy the soothing mood of Falling Snow Animated Theme . This motion-animated dark theme turns Firefox into a calm wintry night as snowflakes cascade around the corners of your browser. Privacy Badger The flagship anti-tracking extension from privacy proponents at 2026-01-08T14:59:52+00:00Add-ons Blogtag:trvny.github.io,2024:feedseek/mozilla/3eb1fb76172425d8Thunderbird 2025 Review: Building Stronger for the Future2025-12-18T13:00:00+00:002025 was an exciting year for Thunderbird. Many improvements were shipped throughout the year, from faster updates with a new release cadence, to a modernized codebase for the desktop app. We made big strides on our mobile apps and introduced the upcoming Thunderbird Pro to the world. As we wrap up the year, a huge […] The post Thunderbird 2025 Review: Building Stronger for the Future appeared first on The Thunderbird Blog .2025-12-18T13:00:00+00:00Thunderbird Blogtag:trvny.github.io,2024:feedseek/mozilla/edaf7fd3ca3dc9fcSupercharge your productivity with a Firefox extension2025-11-04T01:42:25+00:00With more work and education happening online you may find yourself needing new ways to juice your productivity. From time management to organizational tools and more, the right Firefox extension can give you an edge in the art of efficiency. I need help saving and organizing a lot of web content Raindrop.io Organize anything you find on the web with Raindrop.io — news articles, videos, PDFs, and more. Raindrop.io makes it simple to gather clipped web content by subject matter and organize with 2025-11-04T01:42:25+00:00Add-ons Blogtag:trvny.github.io,2024:feedseek/mozilla/5690227a3b590cf8Who needs Graphviz when you can build it yourself?2025-10-28T17:00:00+00:00Exploring a new layout algorithm for control flow graphs.2025-10-28T17:00:00+00:00SpiderMonkeytag:trvny.github.io,2024:feedseek/mozilla/9856409b02be11ccReddit revolutionized — use a browser extension to enhance your favorite forum2025-10-16T21:29:46+00:00Reddit is awash with great conversation (well, not all the time) . There’s a Reddit forum for just about everybody — sports fans , gamers , poets inspired by food , people who like arms on birds — you get the idea. If you spend time on Reddit, there are ways to augment your experience with a browser extension… Reddit Enhancement Suite Used by millions of Redditors across various browsers, Reddit Enhancement Suite is optimized to work with the beloved “old Reddit”. Key features: Subreddit manager2025-10-16T21:29:46+00:00Add-ons Blogtag:trvny.github.io,2024:feedseek/mozilla/f3fb94a112c62ce2Boost your writing skills with a browser extension2025-10-16T19:54:02+00:00Whatever kind of writing you do — technical documentation, corporate communications, Harry Potter-vampire crossover fan fiction — it probably happens online. Here are some fabulous browser extensions that will benefit anyone who writes on the web. Get grammar help, productivity tools, and other strong writing aids… LanguageTool It’s like having your own copy editor with you wherever you write on the web. Language Tool – Grammar and Spell Checker will make you a better writer in 25+ languages. Mo2025-10-16T19:54:02+00:00Add-ons Blogtag:trvny.github.io,2024:feedseek/mozilla/d87061bae93c465fExtension starter pack2025-10-16T19:22:03+00:00You’ve probably heard about “ad blockers,” “tab managers,” “anti-trackers” or any number of browser customization tools commonly known as extensions. And maybe you’re intrigued to try one, but you’ve never installed an extension before and the whole notion just seems a bit vague. Let’s demystify extensions. An extension is simply an app that runs on a browser like Firefox. From serious productivity and privacy enhancing features to fun stuff like changing the way the web looks and feels, extensi2025-10-16T19:22:03+00:00Add-ons Blogtag:trvny.github.io,2024:feedseek/mozilla/2be4ec6010102c59Translate the web easily with a browser extension2025-10-15T23:14:16+00:00At Mozilla, of course we’re fans of Firefox’s built-in, privacy-focused translation feature , but the beauty of browser extensions is the vast array of niche tools and customization features they can provide. Sometimes finding the right extension for your personal needs can profoundly change the way you interact with the web. So if you do a lot of translating on the internet, you might consider using a specialized extension translator. Here are some great options… I just want a simple, efficient2025-10-15T23:14:16+00:00Add-ons Blogtag:trvny.github.io,2024:feedseek/mozilla/0a30c8963418451dCRLite: Fast, private, and comprehensive certificate revocation checking in Firefox2025-08-19T16:03:19+00:00Firefox is now the first and the only browser to deploy fast and comprehensive certificate revocation checking that does not reveal your browsing activity to anyone (not even to Mozilla). Tens of millions of TLS server certificates are issued each day to secure communications between browsers and websites. These certificates are the cornerstones of ubiquitous […] The post CRLite: Fast, private, and comprehensive certificate revocation checking in Firefox appeared first on Mozilla Hacks - the Web2025-08-19T16:03:19+00:00Mozilla Hackstag:trvny.github.io,2024:feedseek/mozilla/960acd917624ed20Top anti-tracking extensions2025-07-26T01:05:07+00:00The truth of modern tracking is that it happens in so many different and complex ways it’s practically impossible to ensure absolute tracking protection. But that doesn’t mean we’re powerless against personal data harvesters attempting to trace our every online move. There are a bunch of Firefox browser extensions that can give you tremendous anti-tracking advantages… Privacy Badger Sophisticated and effective anti-tracker that doesn’t require any setup whatsoever. Simply install Privacy Badger 2025-07-26T01:05:07+00:00Add-ons Blogtag:trvny.github.io,2024:feedseek/mozilla/70fde93e4e1b66baTweak Twitch—BetterTTV and other extensions for Twitch customization2025-07-26T00:33:08+00:00Customize chat, optimize your video player, auto-collect channel points, and much much more. Explore some of the ways you can radically transform your Twitch experience with a browser extension… BetterTTV One of the most feature rich and popular Twitch extensions out there, BetterTTV has everything from fun new emoticons to advanced content filtering. Key features: Auto-collect channel points Easier-to-read chat interface Select usernames, words, or specific phrases you want highlighted througho2025-07-26T00:33:08+00:00Add-ons Blogtag:trvny.github.io,2024:feedseek/mozilla/46babb52a352e9a35 Things You Might Not Know about Developing Self-Hosted Code2025-04-23T00:00:00+00:00Self-hosted code is JavaScript code that SpiderMonkey uses to implement some of its intrinsic functions for JavaScript. Because it is written in JavaScript, it gets all the benefits of our JITs, like inlining and inline caches.2025-04-23T00:00:00+00:00SpiderMonkeytag:trvny.github.io,2024:feedseek/mozilla/6c7590dae40f132cShipping Temporal2025-04-11T18:00:00+00:00The Temporal proposal provides a replacement for Date, a long standing pain-point in the JavaScript language. This blog post describes some of the history and motivation behind the proposal. The Temporal API itself is well docmented on MDN.2025-04-11T18:00:00+00:00SpiderMonkeytag:trvny.github.io,2024:feedseek/mozilla/3ff41faef7e30388Improving Firefox Stability in the Enterprise by Reducing DLL Injection2025-03-25T18:31:16+00:00Beginning in version 138, Firefox will offer an alternative to DLL injection for Data Loss Prevention (DLP) deployments in enterprise environments. DLL Injection DLL injection into Firefox is a topic we’ve covered on the Hacks blog before. In 2023, we blogged about the Firefox capability to let users block third-party DLLs from being loaded. We […] The post Improving Firefox Stability in the Enterprise by Reducing DLL Injection appeared first on Mozilla Hacks - the Web developer blog .2025-03-25T18:31:16+00:00Mozilla Hackstag:trvny.github.io,2024:feedseek/mozilla/74f63c1d1f655d7bSpiderMonkey Newsletter (Firefox 135-137)2025-03-17T20:00:00+00:00Hello everyone,2025-03-17T20:00:00+00:00SpiderMonkeytag:trvny.github.io,2024:feedseek/mozilla/aa96258ec2c29acdImplementing Iterator.range in SpiderMonkey2025-03-05T07:00:00+00:00In October 2024, I joined Outreachy as an Open Source contributor and in December 2024, I joined Outreachy as an intern working with Mozilla. My role was to implement the TC39 Range Proposal in the SpiderMonkey JavaScript engine. Iterator.range is a new built-in method proposed for JavaScript iterators that allows generating a sequence of numbers within a specified range. It functions similarly to Python’s range, providing an easy and efficient way to iterate over a series of values:2025-03-05T07:00:00+00:00SpiderMonkeytag:trvny.github.io,2024:feedseek/mozilla/874249cb871882a3Making Teleporting Smarter2025-02-19T18:00:00+00:00Recently I got to land a patch which touches a cool optimization, that I had to really make sure I understood deeply. As a result, I wrote a huge commit message. I’d like to expand that message a touch here and turn it into a nice blog post.2025-02-19T18:00:00+00:00SpiderMonkeytag:trvny.github.io,2024:feedseek/mozilla/e67d0a8b1e6550d9Launching Interop 20252025-02-13T16:59:13+00:00Interop 2025 continues the mission to make the web more consistent across browsers, building on 2024’s 95% interoperability score. This year, 19 focus areas target key developer needs and long-standing issues, including WebRTC improvements, Storage Access API, and CSS Zoom. The post Launching Interop 2025 appeared first on Mozilla Hacks - the Web developer blog .2025-02-13T16:59:13+00:00Mozilla Hackstag:trvny.github.io,2024:feedseek/mozilla/469eed12f4ad42c8Is Memory64 actually worth using?2025-01-15T18:00:00+00:00After many long years, the Memory64 proposal for WebAssembly has finally been released in both Firefox 134 and Chrome 133. In short, this proposal adds 64-bit pointers to WebAssembly.2025-01-15T18:00:00+00:00SpiderMonkeytag:trvny.github.io,2024:feedseek/mozilla/c89a3d8f9cbf6abeIntroducing Uniffi for React Native: Rust-Powered Turbo Modules2024-12-04T19:38:01+00:00Mozilla and Filament have introduced Uniffi for React Native, a tool that allows developers to leverage the safety and performance benefits of Rust in cross-platform React Native apps. The post Introducing Uniffi for React Native: Rust-Powered Turbo Modules appeared first on Mozilla Hacks - the Web developer blog .2024-12-04T19:38:01+00:00Mozilla Hackstag:trvny.github.io,2024:feedseek/mozilla/2c4835901de44402How to turn your household pet into a Firefox theme2024-10-17T22:54:58+00:00Themes are a fun way to change the visual appearance of Firefox and give the browser a look that’s all your own. You’re free to explore more than a half-million community created themes on addons.mozilla.org (AMO), or better yet, create your own custom theme. Best of all — create a theme featuring a beloved pet! Then you can take your little buddy with you wherever you go on the web. (You’ll need a Mozilla account to create and publish Firefox themes on AMO.) Prepare your pet pic for upload I fi2024-10-17T22:54:58+00:00Add-ons Blogtag:trvny.github.io,2024:feedseek/mozilla/103b749cfcb1917aLlamafile v0.8.14: a new UI, performance gains, and more2024-10-16T13:32:30+00:00Discover the latest release of Llamafile 0.8.14, an open-source AI tool by Mozilla Builders. With a new command-line chat interface, enhanced performance, and support for powerful models, Llamafile makes it easy to run large language models (LLMs) on your own hardware. Learn more about the updates and how to get involved with this cutting-edge project. The post Llamafile v0.8.14: a new UI, performance gains, and more appeared first on Mozilla Hacks - the Web developer blog .2024-10-16T13:32:30+00:00Mozilla Hackstag:trvny.github.io,2024:feedseek/mozilla/1580c7df7054ab650Din: A GenAI Bug Bounty Program – Securing Tomorrow’s AI Together2024-08-08T18:39:13+00:00As AI continues to evolve, so do the threats against it. As these GenAI systems become more sophisticated and widely adopted, ensuring their security and ethical use becomes paramount. 0Din is a groundbreaking GenAI bug bounty program dedicated specifically to help secure GenAI systems and beyond. In this blog, you'll learn about 0Din, how it works, and how you can participate and make a difference in securing our AI future. The post 0Din: A GenAI Bug Bounty Program – Securing Tomorrow’s AI Toge2024-08-08T18:39:13+00:00Mozilla Hackstag:trvny.github.io,2024:feedseek/mozilla/8dcadf400f8c9354Announcing Official Puppeteer Support for Firefox2024-08-07T15:44:40+00:00We’re pleased to announce that, as of version 23, the Puppeteer browser automation library now has first-class support for Firefox. This means that it’s now easy to write automation and perform end-to-end testing using Puppeteer, and run against both Chrome and Firefox. The post Announcing Official Puppeteer Support for Firefox appeared first on Mozilla Hacks - the Web developer blog .2024-08-07T15:44:40+00:00Mozilla Hackstag:trvny.github.io,2024:feedseek/mozilla/118766e76714914bSnapshots for IPC Fuzzing2024-06-27T16:18:49+00:00Process separation remains one of the most important parts of the Firefox security model and securing our IPC (Inter-Process Communication) interfaces is crucial to keep privileges in the different processes separated. We take a more detailed look at our newest tool for finding vulnerabilities in these interfaces – snapshot fuzzing. The post Snapshots for IPC Fuzzing appeared first on Mozilla Hacks - the Web developer blog .2024-06-27T16:18:49+00:00Mozilla Hackstag:trvny.github.io,2024:feedseek/mozilla/b997ec4151cb1762Sponsoring sqlite-vec to enable more powerful Local AI applications2024-06-25T15:25:58+00:00Today we’re proud to announce the next Mozilla Builders project: sqlite-vec. Led by independent developer Alex Garcia, this project brings vector search functionality to the beloved SQLite embedded database. Alex has been working on this problem for a while, and we think his latest approach will have a great impact by providing application developers with a powerful new tool for building Local AI applications. The post Sponsoring sqlite-vec to enable more powerful Local AI applications appeared 2024-06-25T15:25:58+00:00Mozilla Hackstag:trvny.github.io,2024:feedseek/mozilla/ec62cfa621686867What’s the best ad blocker for you?2024-06-04T00:30:18+00:00So you’ve decided to do something about all those annoying ads you’re barraged with online. What pushed you over the edge? Auto-play video ads? Blaring banners? Tired of your music interrupted by a sudden sponsorship? Was it the realization they intentionally make the ‘Close’ buttons [x] on ads super tiny so you accidentally click the very thing you’re trying to avoid? There are a number of approaches you can take to blocking ads with a browser extension—it just depends on what you’re trying to 2024-06-04T00:30:18+00:00Add-ons Blogtag:trvny.github.io,2024:feedseek/mozilla/2539fb906016db75Experimenting with local alt text generation in Firefox Nightly2024-05-31T16:43:46+00:00Firefox 130 will introduce an experimental new capability to automatically generate alt-text for images using a fully private on-device AI model. The feature will be available as part of Firefox’s built-in PDF editor, and our end goal is to make it available in general browsing for users with screen readers. The post Experimenting with local alt text generation in Firefox Nightly appeared first on Mozilla Hacks - the Web developer blog .2024-05-31T16:43:46+00:00Mozilla Hackstag:trvny.github.io,2024:feedseek/mozilla/ac02ca7076c88d15Llamafile’s progress, four months in2024-04-25T15:34:08+00:00When Mozilla’s Innovation group first launched the llamafile project late last year, we were thrilled by the immediate positive response from open source AI developers. It’s become one of Mozilla’s top three most-favorited repositories on GitHub, attracting a number of contributors, some excellent PRs, and a growing community on our Discord server. The post Llamafile’s progress, four months in appeared first on Mozilla Hacks - the Web developer blog .2024-04-25T15:34:08+00:00Mozilla Hackstag:trvny.github.io,2024:feedseek/mozilla/6a419a74962b8e3eExtensions for cleaning up a chaotic desktop2023-03-28T02:54:01+00:00Clutter isn’t just material stuff scattered about your floor and shelves. Clutter can consume us in digital form, too — from an overabundance of browser bookmarks and open tabs to navigating a world wide web that’s littered with junk. The right browser extension, however, can really help clean things up… Tranquility Reader Want to sweep away all the mess around your website reading material, like images, ads, and links to other content you don’t care about? Tranquility Reader does just that. Hit2023-03-28T02:54:01+00:00Add-ons Blogtag:trvny.github.io,2024:feedseek/mozilla/a1d8f16c568ee23cRoblox browser extensions for better gaming2023-01-10T00:43:05+00:00Every day, more than 50 million people play among millions of user-created games on Roblox . With a massive global audience and an ocean of games, there are vastly different ways users like to interact with Roblox. This is where the customization power of browser extensions can shine. If you’re a Roblox player or creator, you might be intrigued to explore some of these innovative extensions built just for Roblox users on Firefox. BTRoblox Packed with features, BTRoblox can do everything from alt2023-01-10T00:43:05+00:00Add-ons Blogtag:trvny.github.io,2024:feedseek/mozilla/1dc07a7285b6a7b1How Firefox’s Total Cookie Protection and container extensions work together2022-08-23T09:28:17+00:00When we recently announced the full public roll-out of Firefox Total Cookie Protection — a new default browser feature that automatically confines cookies to the websites that created them, thus eliminating the most common method that sites use to track you around the web — it raised a question: Do container extensions like Mozilla’s Facebook Container and Multi-Account Containers still serve a purpose, since they similarly perform anti-tracking functions by suppressing cookie trails? In short, 2022-08-23T09:28:17+00:00Add-ons Blogtag:trvny.github.io,2024:feedseek/mozilla/fa2e2549ef603bb3The pandemic changed everything — even the way we use browser extensions2022-03-09T17:30:28+00:00On March 11, 2020 the World Health Organization declared COVID-19 a global pandemic. Within days, practically the entire planet was on lockdown. We went indoors and online. So how did the sudden mass migration online impact browser extension usage? Pretty dramatically, it turns out. On this two-year mark of the start of the pandemic we looked back at Firefox extension installs and usage data to discover several compelling trends. We wanted to see the types of extensions Firefox users were drawn 2022-03-09T17:30:28+00:00Add-ons Blogtag:trvny.github.io,2024:feedseek/mozilla/aeebc7b0566fc7d7Find that font! I must have that font!2022-01-08T00:10:29+00:00You’re probably a digital designer or work in some publishing capacity (otherwise it would be pretty strange to have a fascination with fonts); and you appreciate the aesthetic power of exceptional typography. So what do you do when you encounter a wonderful font in the wild that you might want to use in your own design work? Well, if you have a font finder browser extension you can learn all about it within a couple mouse clicks. Here are some of our favorite font discovery extensions… Font Fin2022-01-08T00:10:29+00:00Add-ons Blogtag:trvny.github.io,2024:feedseek/mozilla/25e7cd34425914feLevel up your Steam experience with a browser extension2021-12-20T23:08:36+00:00With more than 120 million users worldwide and 50,000+ games in its ecosystem, Steam is an extraordinarily eclectic gaming distribution platform. Given its broad reach, it makes sense that different users have different ways they’d like to adjust and optimize their personal Steam experience. That’s where browser extensions come in… Augmented Steam Packed with features that do everything from finding game deals to organizing content, Augmented Steam has a little something for every kind of Steam 2021-12-20T23:08:36+00:00Add-ons Blogtag:trvny.github.io,2024:feedseek/mozilla/729967b168b97441Firefox’s most popular and innovative browser extensions of 20212021-12-14T14:10:39+00:00About one-third of Firefox users have installed an add-on—be it an extension to equip Firefox with a custom feature or a visual theme to personalize their browsing experience. What kind of extensions did we use most in 2021? And what are some of the new, innovative extensions to emerge this year? Let’s find out! Two ad blockers vie for most popular in 2021 Note we’re using ‘average daily users’ (ADU) across the span of 2021 as the metric to determine “most popular.” We feel ADU offers the most a2021-12-14T14:10:39+00:00Add-ons Blogtag:trvny.github.io,2024:feedseek/mozilla/b64f3c5efac8154eThe magic of mouse gestures2021-11-18T19:36:52+00:00Mouse gestures are mouse movement and key combinations that give you the power to customize the way you maneuver around web pages. If your online work requires a fair amount of distinct, repetitive activity—things like rapid page scrolling, opening links in background tabs, closing batches of open tabs, etc.—the right mouse gesture can make a major impact on your task efficiency. Here are a few browser extensions that provide excellent mouse gesture features… Gesturefy With 80+ predefined mouse 2021-11-18T19:36:52+00:00Add-ons Blog