If you’re a fan of uBlock Origin (uBO) like I am, you might have heard about the upcoming changes to Chrome extensions. Google is rolling out Manifest v3 (Mv3), which sounds fancy, but it’s causing headaches for some of our favorite extensions. Extensions like uBlock Origin, which rely on Manifest v2 (Mv2), may stop working unless you make a tweak.
The good news? There’s a simple workaround if you’re on macOS, and I’m here to guide you through it!
What’s the Deal with Manifest v3?
Manifest v3 is the new framework for Chrome extensions. Google is phasing out the older Manifest v2 (Mv2) to improve security, performance, and privacy. While Google wants you to think it’s a win for users, Mv3 comes with strict limitations on what extensions can do—particularly in how they interact with websites and modify network traffic.
It’s supposed to improve security and performance, but it also limits what some powerful extensions can do. uBlock Origin, for example, has features that rely on the older Mv2 system. Google is phasing out Mv2, but they’ve given us a way to extend its life—at least until June 2025.
This is where a little tweak called enterprise policy comes in. Don’t worry—it’s not just for big businesses! You can use it on your own macOS account without messing with anyone else’s.
The Quick Fix (for Mac Users)
Open Terminal, search for it with Command + Space if you have never used it.
Run this command
defaults write com.google.Chrome ExtensionManifestV2Availability -int 2
You can undo it with this if you need to for whatever reason.
defaults delete com.google.Chrome ExtensionManifestV2Availability
Close and reopen Chrome then go here chrome://policy
You should see an entry for Chrome Policies. Nice work.
Why This Is Great
This tweak applies only to your macOS user account, so you’re not making system-wide changes. It’s quick, reversible, and keeps uBlock Origin running like a champ.
Important Notes
- This fix is temporary and only works until June 2025, when Google will fully retire Manifest v2.
- Be sure to keep an eye on updates from the uBlock Origin developer—they’re working on adapting to Mv3.
That’s it! You’ve just added months of life to one of the best ad blockers out there.
Happy browsing! 🚀