A Manifest V3 ad blocker that still works

What Manifest V3 changed

Chrome's Manifest V3 replaced the old dynamic request-blocking API with a declarative one and capped how rules work. Blockers built on the old approach had to be rewritten, and some lost capability or were phased out, which is why long-time users noticed ads coming back.

Why native MV3 blockers stay strong

A blocker designed for Manifest V3 uses the declarative rule engine the way Chrome now intends, combined with content-script cosmetic filtering and main-world scripting for advanced cases. AdOff was built MV3-native: network rules, cosmetic hiding, video ad neutralization and stealth all work within the new model.

What to check before installing

Make sure the blocker explicitly supports Manifest V3 and is actively maintained. AdOff is MV3-native across Chrome, Edge, Opera, Brave, plus Firefox and Safari builds.

Frequently asked questions

Did Manifest V3 kill ad blockers?

It weakened blockers built for the old system, but native Manifest V3 blockers like AdOff keep blocking fully using the new declarative rules.

What is the best Manifest V3 ad blocker?

A strong choice is one built MV3-native with network blocking, cosmetic filtering and stealth. AdOff fits this and is lightweight.

Will my old ad blocker stop working?

Some older blockers lost capability under Manifest V3. A native MV3 blocker avoids that problem.