This doesn't work on private windows unfortunately but that's only a small % of people. Great add-on.

Not sure yet

It's been good for Facebook and Instagram. Not perfect as FB still seems to find ways to be intrusive even with multiple privacy extensions. But all of sudden I can't login to Instagram with this extension turned on. If I turn it off and login and then turn the extension back on, it closes the tab. Literally impossible to have the extension on and login into Instagram...completely defeats the purpose.

Great public service - infuriates the ad-tech gods - on that basis alone I'd srsly donate $$ to support.

Now that firefox isolates third party cookies by default, what does this offer as extra protection?

It does not work, at all. Facebook added all new content related to what I just did today. I am told to give feedback if I have problems, but ... no link anywhere on who to contact. Thus, bad review.