EDIT July 16, 2026: Violentmonkey has been updated to Manifest V3! :smiley: The extension now requires an additional permission to run user scripts, and sometimes a tab may need to be reloaded to run scripts, but it works for me! Description of the issue: Some extensions were turned off today in B…

Let me help. Based on my research and testing, I’ve found a way to install the MV2 extension on Brave (Chromium 150). It may not be the official method, but this approach can help restore MV2 functionality in Brave. Please read the guide I’ve posted below. I’ve tried installing ScriptSafe, and it in…

For anyone else on macOS, here’s the downgrade process to v1.91.178 (the last MV2-compatible version) which worked for me: Step 1: Back up your profile data Before touching the application files, make a localized copy of your user profile. Open your terminal and run: cp -R "$HOME/Library/Applicati…

For ScriptSafe users – I confirmed that the original developer has abandoned the extension, but another developer recently picked it up to maintain it. Go directly to the extension website if you cannot access it through the Chrome store. I tried it yesterday with my non-Chrome based browsers that s…

Me too. I’ve checked TimeMachine on my Mac and I haven’t been able to find my library of whitelisted and blocked scripts, was thinking it may be in the cloud and not stored locally.

I have this problem on the Mac too with my missing extensions

i give librewolf (A custom version of Firefox, focused on privacy, security and freedom) a chance now. i really did not want to check out other browsers, but to deactivate add-ons by brave has left me speechless and disappointed. So i test Librewolf now. It has uBlock Origin, ScriptSafe and some ot…

what browser are you considering now? i guess it should have to be a non-chromium browser? How about Librewolf?

That happened to me with 5 or 6 extensions out of the blue. Chrome and google are BS in acting like this from nowhere. What about a warning saying “these extensions are going to stop working in a week, back up your data and find alternatives” ? Instead of “no more extensions ahah I guess you can’t …

Firefox?? lol, you mean the browser that axed not V2 manifest extensions, but THEIR WHOLE massive extention catalog when they changed engines? That browser? the one with shady politics, privacy issues in the URL bar, and cozying with open society and Soros?

Since when did Firefox change engines? Last I checked the browser still runs on Gecko engine, and still uses the SpiderMonkey engine for JavaScript and WebAssembly.

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

Brave Browser Desktop Support

289wk July 15, 2026, 9:58pm 62

github.com/brave/brave-browser

Disabled Extensions manifest V2 deprecation

opened 09:33PM - 14 Jul 26 UTC

closed 09:35PM - 14 Jul 26 UTC

kjozwiak

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

Do not deprecate Manifest V2 extensions while they are still available on the We…b Store (as of August 31, 2026). ### QA/STR: * https://github.com/brave/brave-core/pull/37883#issue-4844706214

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

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