Fair warning: the extension will cost you money after the first 20 image translations.

But imo it's worth it because:

The extension actually works, lol. This differentiates it from the other dozen ones I've tried which have invariably sucked or plain not worked at all.

I use it to translate random jp/cn/kr comics on pixiv. It's super convenient, text in the images gets translated right there on the screen.
The translations aren't always perfect (it can struggle with hand-writing), but it's FAR better than what you get by pasting the image into google translate/google lens.

The interface is super easy to use, too. You don't even need to instruct it which language it is looking at.