diff --git a/browser/branding/branding-common.mozbuild b/browser/branding/branding-common.mozbuild
--- a/browser/branding/branding-common.mozbuild
+++ b/browser/branding/branding-common.mozbuild
@@ -22,12 +22,15 @@ def FirefoxBranding():
         FINAL_TARGET_FILES.VisualElements += [
             'VisualElements_150.png',
             'VisualElements_70.png',
         ]
     elif CONFIG['MOZ_WIDGET_TOOLKIT'] == 'gtk':
         FINAL_TARGET_FILES.chrome.icons.default += [
             'default128.png',
             'default16.png',
+            'default22.png',
+            'default24.png',
+            'default256.png',
             'default32.png',
             'default48.png',
             'default64.png',
         ]