I've been a long-time user of Opera, who switched back to Firefox and then back to Opera a couple of times. Opera has been consistently much faster and better

I've been a long-time user of Opera, who switched back to Firefox and then back to Opera a couple of times. Opera has been consistently much faster and better designed than Firefox. But it has one major, glaring fault: it's closed-source. I just don't trust closed-source software anymore. I also had concerns about privacy-invading directions Opera was taking (such as sending all of one's keystrokes to a search engine as you typed them in an address bar search -- your typing rate could be used to aid the search engines in uniquely identifying you). So I switched back to Firefox and have been using it steadily for a few years now. With Pentadactyl, Firefox is much more usable in many ways than Opera was. Though even Pentadactyl can't make up for some of Firefox's ingrained faults, such as it's atrocious bookmark manager, or Firefox's incredible slowness. I refuse to use Chrome on principle, because it spies on its users by default. This behavior can supposedly be disabled, but I have serious ethical objections to any browser that starts out in that state, and is associated with a spyware company like Google. Chromium is better in that at least it doesn't start out by spying on you, but it still lacks addons that are as capable as Firefox's Pentadactyl and NoScript. Most recently I've started migrating as much as possible away from all of these bloated browsers. On 99% of the websites I visit, I now use w3m embedded in emacs. This integration gives me far more power than even Pentadactyl in Firefox, and it's far faster than any of the popular browsers. w3m's main weakness is that it can't handle Javascript, but that's a strength too -- as I don't have to worry about Javascript exploits.. and 99% of the websites I care about don't require Javascript to function. I am happy to get what I care about most: the content -- usually in plain-text format. And for the few sites I care about which annoyingly insist on using Javascript for full functionality, I can always use the other browsers as a backup. This approach might be a bit extreme for most people, but it works well for me.