____
## Changes
- [Blocked privileged `about:` pages from loading remote scripts](https://codeberg.org/celenity/Phoenix/commit/b046dd80d7d78a53e6736b6769dc8ca33eb485f9).
- [Disabled fetching Firefox Relay's `denylist`](https://codeberg.org/celenity/Phoenix/commit/6ec35f282d1746bd7a4779c3d57f955fd56d924d) by default.
- Disabled [Native Messaging](https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/Native_messaging) by default *([Details](https://codeberg.org/celenity/Phoenix/commit/bb82bd987d8a5347d1d7213ffb8820298d51a52f))*.
- To re-enable it, at the cost of privacy and security, you can set the following prefs:
- `webextensions.native-messaging.max-input-message-bytes` -> `1048576`
- `webextensions.native-messaging.max-output-message-bytes` -> `999999999`
- Disabled [`semantic history`](https://searchfox.org/firefox-main/source/toolkit/components/places/PlacesSemanticHistoryManager.sys.mjs) by default.
- [Hardened protocol handling](https://codeberg.org/celenity/Phoenix/commit/adba145225e03475a5c3536250fa870a05ccbb69).
- [Set the browser's region to a dummy value *(`XX`)*, instead of `US`](https://codeberg.org/celenity/Phoenix/commit/8f99da2b6f96200382c7fdd96cbcb8bff02d9f10). This is beneficial as it ensures that certain functionality *(such as Firefox Suggest and Mozilla's DoH rollout)* are disabled by default, allows us to disable features like Firefox Suggest by default without locking them, and in general, ensures we aren't impacted by unwanted geo targetting.
- Other minor tweaks and adjustments.
### Desktop-only
- [Disabled Firefox's new `Unified Trust Panel`](https://codeberg.org/celenity/Phoenix/commit/40dc0d2be0a8871cf029828569b4f95353180e67) by default, as it prevents setting per-site exceptions for the built-in cookie banner blocker.
- [Disabled new tab `attribution`](https://codeberg.org/celenity/Phoenix/commit/ffc374331652dcc977a30fd998cba7396ca4b461).
- [Disabled `Sports` URL bar suggestions](https://codeberg.org/celenity/Phoenix/commit/d1bd8577e874cc68ddae13095472fa6f5ebb63b5) by default.
- For **macOS** and **Windows**: [Enabled the ability to warn users upon potentially misconfigured/problematic settings at [`about:preferences#privacy`](about:preferences#privacy)](https://codeberg.org/celenity/Phoenix/commit/d937b0010f092a88726cf4b1c7958b7a156ac262). *(On Linux, this currently breaks `about:preferences#privacy`)*.
- For **Windows**: [Disabled taskbar lists](https://codeberg.org/celenity/Phoenix/commit/dbd371f9761525938be2929f3d9be2530eefe166) by default.
- [Leveraged new profile-related preferences](https://codeberg.org/celenity/Phoenix/commit/ff0d2698ced0b771c4a1bdaaff9cc7a2ce3e5337) to disable the [`Firefox Messaging System`](https://firefox-source-docs.mozilla.org/browser/components/asrouter/docs/index.html).
- [Removed the `DisableProfileImport` policy](https://codeberg.org/celenity/Phoenix/commit/27d330b84a77e8cda971d909c504a5602f36b860).
- [Removed the `DisplayBookmarksToolbar` policy](https://codeberg.org/celenity/Phoenix/commit/df7526dcc7c6c53710af6b8a4ce0ad5a7c37e858) *(We still always display the bookmarks toolbar by default though, just with the pref instead)*.
- Removed DNS0 from the list of default DNS over HTTPS providers, due to [its unfortunate discontinuation](https://www.dns0.eu/).
- Removed the Mullvad Leta search engine, due to [its unfortunate discontinuation](https://mullvad.net/blog/2025/11/6/shutting-down-our-search-proxy-leta).
- [Updated preferences to disable `IP Protection` *(Mozilla VPN)* by default](https://codeberg.org/celenity/Phoenix/commit/c606f7682c84789a7b7c54e8980e060a7bc4417d).
### Specialized Configs
This release includes **significant** improvements for Phoenix's handling of `specialized configs`. Browser functionality and UI have been minimized, in order to make using them as close to using a native app as possible. This section will not be exhaustive, but will do it's best to cover the notable changes.
- Disabled add-on abuse reporting.
- Disabled the bookmark edit dialog.
- Disabled the bookmarks toolbar.
- Disabled camera permission prompts *(except for the `Discord` and `Element` configs, where users may wish to allow them)*.
- Disable the `Close duplicate tabs` context menu item.
- Disabled the download panel.
- Disabled favicons.
- Disabled file picker dialogs *(except for the `Discord`, `Element`, `Photopea`, and `Twitter` configs, where they are needed)*.
- Disabled Firefox Home. The config's corresponding app/service is now loaded immediately *(except for on the first launch, to allow uBlock Origin to install)*.
- Disabled machine learning functionality.
- Disabled microphone permission prompts *(except for the `Discord`, `Element`, and `Twitter` configs, where users may wish to allow them)*.
- Disabled origin headers.
- Disabled Password Manager/Autofill functionality.
- Disabled Picture-in-Picture *(except for the `Discord`, `Element`, `Twitter`, and `YouTube` configs, where they are needed)*.
- Disabled printing.
- Disabled referers *(except for the `Twitter` config, where they are needed)*.
- Disabled session restore functionality.
- Disabled the `Share URL` menu item.
- Disabled support for web applications manifests.
- Disabled tab detachment.
- Disabled tab switching with `Ctrl` + `Tab`.
- Disabled `Taskbar Tabs` *(PWAs)*.
- Disabled text fragments.
- Disabled toolbar keyboard navigation.
- Disabled tooltips.
- Disabled the `Unload Tab` context menu item.
- Disabled unloading tabs on low memory.
- Disabled URL fix-up.
- Disabled user certificate/key databases.
- Disabled Web Compatibility interventions *(except for the `YouTube` config, where they are needed)*.
- Disabled warnings on closing tabs and quitting the browser.
- Enabled vertical tabs. In combination with our other changes, this effectively hides the tab bar entirely.
- For **Linux** and **Windows**: Disabled the menu bar.
- Hid the UI to automatically delete files downloaded in Private Browsing.
- Introduced a [new specialized config for `YouTube Music`](https://codeberg.org/celenity/Phoenix/commit/27ea15b5a1f964aaf1bb5ad2bfb580be0369a951).
- Prevented the browser from trying to open internally-handled attachments.
- Removed the link to download themes.
- Set links to always open in the current tab/browsing window.
___
Codeberg: See [here](https://codeberg.org/celenity/Phoenix/compare/2025.11.07.1...2025.11.27.1) for more details.
GitLab: See [here](https://gitlab.com/celenityy/Phoenix/-/compare/2025.11.07.1...2025.11.27.1) for more details.
GitHub: See [here](https://github.com/celenityy/Phoenix/compare/2025.11.07.1...2025.11.27.1) for more details.
___
:)