Re: Firefox needs a roll back
Google is world's largest online ad company, everyone knows why it distribute free browsers and OS. It's privacy record is very filthy, it's not easy to stay on top. Opera software itself is now a little known mobile based ad company but it's record and terms are nowhere near Google. It is now owned by a Chinese company, but that's not an ad company who'll sell data to other companies(for now) or desperately try to track everyone. Maybe it'll track some people for Chinese government but to some people "Liever Turks dan Paaps":-)
But yes, the browser of a privacy concerned normal netigen should always be Firefox. It has 1 less tracker. But more conscious people use Tor. It may not protect one from NSAs but easily from Googles.