I'm really baffled by all those people saying that they will stop using Opera if FB acquires them. I mean - okay, If they start modifying it to send your data to Facebook without way to opt-out - sure, do that. If they start showing ads in fastmail and reading your mails - sure, that's reasonable. But I really think that doing that the moment FB acquires Opera would be quite an overreaction.
Additionally, Opera is the only European browser. That may sound stupid, but it's part of the things I can do to put as much distance between me and that messed up country the US of A. Getting bought by some huge US corporation is yet another vector to subpoena my shit or the US gov to influence my life.