# Privacy Policy & Permissions — TabVault (飞叔书签管家)

Last updated: 2026-06-20

## Overview

TabVault (飞叔书签管家) is a browser extension for managing and synchronizing your browser tabs. All data is stored locally on your device and, if configured, synced to a WebDAV server of your own choosing. The extension does not transmit any data to the developer.

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## Data We Collect

**None.** TabVault does not collect, transmit, sell, or share any personal data to the developer or any third-party analytics service.

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## Data Processed on Your Device

To provide its features, the extension processes:

- Tab information (URLs, titles) when you save tabs
- WebDAV credentials (URL, username, app password) you configure — stored locally only
- Tab group data (names, lock/pin state, timestamps)

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## Data Transmitted to Third Parties

| Service | When | What |
|---|---|---|
| Your WebDAV server | When sync is enabled | Tab group data in JSON format |
| Tencent Translate API | When selection translation is used | The selected text snippet |

TabVault does not communicate with the developer's servers. Your WebDAV credentials and tab data never leave your own configured endpoints.

**Recommended WebDAV providers:**
- 坚果云 (Nutstore): `https://dav.jianguoyun.com/dav/`
- koofr: `https://app.koofr.net/dav/Koofr`

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## Data Stored on Your Device

The extension stores the following in `chrome.storage.local`:

- Tab groups and deleted tab groups (sharded for large datasets)
- WebDAV configuration (URL, username, app password)
- Extension settings (restore behavior, auto-sync toggle)
- Sync logs (last 100 entries, in-memory only per session)

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## Permissions Explanation

| Permission | Why it's needed |
|---|---|
| `tabs` | Read tab URLs and titles when you save tabs; update badge count |
| `storage` / `unlimitedStorage` | Save tab groups locally (may exceed the default 5 MB quota) |
| `contextMenus` | Add right-click menu items (Send tab, Send all tabs, etc.) |
| `notifications` | (Reserved) Future sync status notifications |
| `idle` | Detect screen lock to pause periodic sync |
| `alarms` | Schedule hourly auto-sync and debounced sync after tab saves |
| `commands` | Keyboard shortcuts for saving tabs |
| `<all_urls>` (host permission) | Required to make WebDAV requests to any configured server URL |

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## User Controls

- **WebDAV sync**: Disable by leaving the WebDAV URL blank in Options
- **Auto-sync**: Toggle via the WebDAV menu → "是否自动同步"
- **Clear data**: Remove the extension to wipe all stored data
- **Export**: Use "导出 JSON" to download a copy of your tab data at any time

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## Contact

If you have questions about this policy, contact: putaojie66@gmail.com