Thank you for using the extension, for your review, for the high mark, and for your effort and creativity in bringing it to work under Opera.

It seems that the review is more of a feature request, not entirely related to the Firefox browser, however. Because of that, I wonder if you could reconsider your review and score for the extension in context of Firefox?

I myself occasionally use Opera because of built-in VPN and Ad blocker, but Firefox remains my primary browser. So I might port the extension to Opera but can't promise that.