You've got it backwards. Almost all google chromium and firefox browsers will implement MV3. Some might try to keep WebRequest from MV2, but they'll still follow google Web Extensions, and will have to either Hard Fork or do massive jumps through hoops to re-engineer it when google removes all support for MV2.
You've got it backwards. Almost all google chromium and firefox browsers will implement MV3. Some might try to keep WebRequest from MV2, but they'll still follow google Web Extensions, and will have to either Hard Fork or do massive jumps through hoops to re-engineer it when google removes all support for MV2.
https://www.theregister.com/2022/05/20/mozilla_opens_testing_for_manifest/
https://www.ghacks.net/2022/09/24/vivaldi-ad-blocker-manifest-v3/
https://www.ghacks.net/2022/09/29/brave-browser-manifest-v2-extensions-after-v3-update/
https://forums.opera.com/topic/50569/manifest-v3-opera/2?_=1682676951014&lang=en-US
https://blog.mozilla.org/addons/tag/manifest-v3/