i wasn't as plussed as everyone else over it, though i am concerned. i still donate to mozilla as, ultimately, i believe they're still good for those who champion an ethical, open, and not for profit internet.
i have switched to librefox, though, just because i like their developers and the fact that they've embraced mastodon and the fediverse. i also have firefox and nightly (though i use fennec on android because it comes through f droid)