I would call you out on the shady stuff. The ouster of the CEO happened quite a while ago. Agree with the reasoning or not, that had nothing to do with the tech behind the browser.
In regards to recommendations, I would recommend FireFox beta/nightly channel depending on how bleeding edge you want to be. I was a big Opera supporter but since the sale, it went down hill and the original creator came out of retirement to launch Vivaldi. He did not like what his creation had become.
I don’t care for chrome but use it on mobile because… Android. I would not hesitate to mention chromium but there are some resteictions there.
I run FF nightly and with the new technologies that Mozilla is backing in with servo, FF should win back some market share within the next year.