Stop using Chrome, it is adware at this point. Use Firefox or if that's too different, use Brave or Edge or a different chromium offshoot that isn't going to support manifest v3.
Man I just tried to throw out a Chromium fork that didn't use Manifest v3, I didn't realize Brave went off the deep end. Personally I use Firefox and Edge when I need to use Chromium and for work just because I find it's dev tools nicer.
Brave has built-in wallet support and such, but I don't think it does any mining, does it? It just has its own opt-in ad system to pays out in crypto and is also owned by a turd.