[lapcat]

Firefox is adding V3 support for compatibility with Chrome but not removing V2 support: https://blog.mozilla.org/addons/2022/05/18/manifest-v3-in-fi...

[nullbytesmatter]

That's what they say now, they don't exactly have a good extension record themselves.

I operate some popular extensions and I now maintain a v2 and v3 build (make file). I'd love to nuke the v2 build tasks and only operate in v3. Most users are on Chrome anyway.

If you're lucky, v2 will be kept around for legacy extensions that are rarely if ever updated.