I used it for many years but ultimately abandoned it because its memory use was just unacceptably high. A couple of windows with 30-40 tabs in each would eat all my laptop's memory - Chromium in a similar setup will sit around 40% used. I don't know what Firefox is doing but it's crazy far off the pace there.
Mozilla should be focusing on fixing things like that and making the browser be good before the barely related campaigning, let alone the whole "we're going to be an advertising business as well" thing.
I had a few extensions, I don't think anything especially unusual. Regardless, Chromium with a few similar extensions (ublock is the most notable) performs far better.
Mozilla should be focusing on fixing things like that and making the browser be good before the barely related campaigning, let alone the whole "we're going to be an advertising business as well" thing.