There should be a way to allow extensions to execute only on specific websites like the Site access option in Edge does, this improves extensions usability and may also enhance privacy.
3 years with significant community ask and? Seems like some ball dropping going on.
Come on this is serious issue. And I disagree with others who say it's simple, believe me extensions likely have tendrils all over the code and possibly this is quite a PITA to implement. But for firefox to have some semblence of privacy/security minded browser that it always tries to portray this is a complete must!
