stable26 Mar 2026 to 20 Aug 2026

Mozilla Firefox: 7.9 to 8.1

30 new settings, 69 changed since 7.9. 6 retained releases apart.

CSV JSONBrowse its 412 settings Vendor download page

Changes that matter

99 settings · compared with 7.9

Bookmark 01
Computer and user · Mozilla\Firefox\Bookmarks
- Option “Title” ~~[was: URL]~~[now: Title]
- Option “URL” ~~[removed: Favicon ]~~URL
- Option “Folder name” ~~[was: BookmarkFolder]~~[now: Folder name]
- Option “Favicon URL” ~~[was: Placement]~~[now: Favicon URL]
- Editor controls or their defaults changed.
Control use of the Web Serial APINew
Computer and user · Mozilla\Firefox
LockedNew
Computer and user · Mozilla\Firefox\AI Controls\Default
Block TrackersNew
Computer and user · Mozilla\Firefox\Local Network Access
ValueNew
Computer and user · Mozilla\Firefox\AI Controls\Default
WeatherNew
Computer and user · Mozilla\Firefox\Firefox Home
Enable PromptingNew
Computer and user · Mozilla\Firefox\Local Network Access
Bookmark 02
Computer and user · Mozilla\Firefox\Bookmarks
- Option “Title” ~~[was: URL]~~[now: Title]
- Option “URL” ~~[removed: Favicon ]~~URL
- Option “Folder name” ~~[was: BookmarkFolder]~~[now: Folder name]
- Option “Favicon URL” ~~[was: Placement]~~[now: Favicon URL]
- Editor controls or their defaults changed.
IP Protection (VPN) AvailabilityNew
Computer and user · Mozilla\Firefox
EnabledNew
Computer and user · Mozilla\Firefox\Local Network Access
LockedNew
Computer and user · Mozilla\Firefox\AI Controls\Key Points in Link Previews
LockedNew
Computer and user · Mozilla\Firefox\Local Network Access
Bookmark 03
Computer and user · Mozilla\Firefox\Bookmarks
- Option “Title” ~~[was: URL]~~[now: Title]
- Option “URL” ~~[removed: Favicon ]~~URL
- Option “Folder name” ~~[was: BookmarkFolder]~~[now: Folder name]
- Option “Favicon URL” ~~[was: Placement]~~[now: Favicon URL]
- Editor controls or their defaults changed.
ValueNew
Computer and user · Mozilla\Firefox\AI Controls\Key Points in Link Previews
Skip DomainsNew
Computer and user · Mozilla\Firefox\Local Network Access
LockedNew
Computer and user · Mozilla\Firefox\AI Controls\PDF Image Alt Text
Enable XSLTNew
Computer and user · Mozilla\Firefox
Bookmark 04
Computer and user · Mozilla\Firefox\Bookmarks
- Option “Title” ~~[was: URL]~~[now: Title]
- Option “URL” ~~[removed: Favicon ]~~URL
- Option “Folder name” ~~[was: BookmarkFolder]~~[now: Folder name]
- Option “Favicon URL” ~~[was: Placement]~~[now: Favicon URL]
- Editor controls or their defaults changed.
ValueNew
Computer and user · Mozilla\Firefox\AI Controls\PDF Image Alt Text
LockedNew
Computer and user · Mozilla\Firefox\AI Controls\Chatbot in Sidebar
Bookmark 05
Computer and user · Mozilla\Firefox\Bookmarks
- Option “Title” ~~[was: URL]~~[now: Title]
- Option “URL” ~~[removed: Favicon ]~~URL
- Option “Folder name” ~~[was: BookmarkFolder]~~[now: Folder name]
- Option “Favicon URL” ~~[was: Placement]~~[now: Favicon URL]
- Editor controls or their defaults changed.
Enable CNSA 2.0 key agreementNew
Computer and user · Mozilla\Firefox
ValueNew
Computer and user · Mozilla\Firefox\AI Controls\Chatbot in Sidebar
Containers
Computer and user · Mozilla\Firefox
- Description … built-in defaults are used. For detailed information on creating the policy, see ~~[removed: https://github.com/mozilla/policy-templates/blob/master/README.md#containers.]~~[added: https://firefox-admin-docs.mozilla.org/reference/policies/containers/.]
  Whole description, marked
  If this policy is enabled, you can use JSON to configure the default containers. If this policy is disabled or not configured, the built-in defaults are used. For detailed information on creating the policy, see ~~[removed: https://github.com/mozilla/policy-templates/blob/master/README.md#containers.]~~[added: https://firefox-admin-docs.mozilla.org/reference/policies/containers/.]
- Supported on ~~[was: SUPPORTED_FF113]~~[now: Firefox 113 or later]
- Supported on SUPPORTED_FF113~~[removed: ; un]~~[added: _ONLY; ]resolved; Blank;
LockedNew
Computer and user · Mozilla\Firefox\AI Controls\Tab Group Suggestions
Bookmark 06
Computer and user · Mozilla\Firefox\Bookmarks
- Option “Title” ~~[was: URL]~~[now: Title]
- Option “URL” ~~[removed: Favicon ]~~URL
- Option “Folder name” ~~[was: BookmarkFolder]~~[now: Folder name]
- Option “Favicon URL” ~~[was: Placement]~~[now: Favicon URL]
- Editor controls or their defaults changed.
ValueNew
Computer and user · Mozilla\Firefox\AI Controls\Tab Group Suggestions
Containers (JSON on one line)
Computer and user · Mozilla\Firefox
- Description … built-in defaults are used. For detailed information on creating the policy, see ~~[removed: https://github.com/mozilla/policy-templates/blob/master/README.md#containers.]~~[added: https://firefox-admin-docs.mozilla.org/reference/policies/containers/.]
  Whole description, marked
  If this policy is enabled, you can use JSON to configure the default containers. If this policy is disabled or not configured, the built-in defaults are used. For detailed information on creating the policy, see ~~[removed: https://github.com/mozilla/policy-templates/blob/master/README.md#containers.]~~[added: https://firefox-admin-docs.mozilla.org/reference/policies/containers/.]
- Supported on ~~[was: SUPPORTED_FF113]~~[now: Firefox 113 or later]
- Supported on SUPPORTED_FF113~~[removed: ; un]~~[added: _ONLY; ]resolved; Blank;
LockedNew
Computer and user · Mozilla\Firefox\AI Controls\Smart Window
Bookmark 07
Computer and user · Mozilla\Firefox\Bookmarks
- Option “Title” ~~[was: URL]~~[now: Title]
- Option “URL” ~~[removed: Favicon ]~~URL
- Option “Folder name” ~~[was: BookmarkFolder]~~[now: Folder name]
- Option “Favicon URL” ~~[was: Placement]~~[now: Favicon URL]
- Editor controls or their defaults changed.