Some extensions suddenly turned off because they are "no longer supported"

289wk · July 4, 2026, 6:00am

Brave GitHub issue 56654:

Auto-replace known Web Store MV2 extensions with Brave-hosted equivalents

opened 11:19AM - 25 Jun 26 UTC

closed 03:55PM - 25 Jun 26 UTC

QA Pass-Win64 QA Pass-Linux priority/P2 QA/Yes release-notes/include OS/Desktop QA Pass-macOS-arm64 QA/Test-All-Platforms feature/extensions/manifest-v2

As Manifest V2 extensions are deprecated, known Web Store MV2 extensions install…ed in Brave are disabled and users are prompted to remove them. Users are left with disabled extensions and must discover and install the Brave-hosted versions themselves. Settings are not carried over without manual intervention, and the MV2-disabled dialog still surfaces extensions that Brave can replace. We should automatically detect supported known Web Store MV2 extensions, back up their settings, install the corresponding Brave-hosted version and exclude those extensions from the MV2-disabled dialog so migration happens without user action.

Also probably important - re social media - issue 55277:

github.com/brave/brave-browser

Social Media Blocking settings should not be per-profile

opened 10:30PM - 05 May 26 UTC

closed 03:10AM - 23 May 26 UTC

antonok-edm

bug feature/shields QA Pass-Win64 QA Pass-Linux QA/Yes release-notes/include OS/Android QA Pass - Android ARM OS/Desktop QA Pass-macOS-arm64 QA/Test-All-Platforms feature/shields/settings

The `Social media blocking` settings in `brave://settings/shields` are stored on… a per-profile basis, yet they are set globally when toggled. This leads to subtle issues when using multiple profiles - if any settings differ across profiles, the settings of the last-opened profile will be used on all of them. These settings will need to be migrated into `Local State`. It's unclear which settings to use for the migration if any of them are different, so it was decided to use the exact same logic to select the final settings to be migrated. Users are encouraged to confirm their settings match what they expected after this migration occurs. ## Test plan ### Pre-upgrade 1. In two or more profiles: a. Visit `brave://settings/shields` b. Modify some or all of the `Social media blocking` toggles at the bottom of the page 2. Decide on a profile to be the "primary" profile, and note down the settings you toggled for this profile ### Post-upgrade 3. Launch the designated "primary" profile 4. Visit `brave://settings/shields` 5. Confirm that the toggles are the same as what you selected previously 6. Open `brave://settings/shields` in other profiles and confirm the settings match the primary profile 7. Changing any of these settings in 1 profile should change them across all profiles ### Behavioral check 8. In any profile, visit https://example.com 9. Execute the following in the devtools console: ```js await Promise.all([ fetch('https://graph.facebook.com'), fetch('https://platform.twitter.com'), fetch('https://platform.linkedin.com'), ]) ``` 10. You should see `net::ERR_BLOCKED_BY_CLIENT` statuses corresponding to platforms for which the toggle is **off**, and `4xx` statuses corresponding to platforms for which the toggle is **on**.

Extension issue > Temporary workaround:

Brave Browser stable release v1.91.178:

‘https://github.com/brave/brave-browser/releases/tag/v1.91.178’

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Some extensions suddenly turned off because they are "no longer supported"

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