I use Firefox too.
Chrome is nice and all, but it uses a lot of my resources (old computer >.<), which is bad.
I have Safari and IE (can you even remove IE?) installed too. I'm going to get Opera too soon, so I can test webpages I make on it.
Firefox. I've never tried Chrome and refuse to bother with IE. My brother is a big fan of Safari but I never found its interface to be all that great...
On my old computer though I couldn't always use Firefox because it seemed excessively slow. Works on what I have now though.
I don't think I'm dealing with quite the same pressures though, at the very least its a significantly smaller system. For the time being I'm just going to put together a quick scrubby box though and hope it works good enough to not make my house toxic
I do know this - xenforo dropped the ball by not keeping the vbulletin reputation comments as a feature. The loss of the Reputation comments data when we switched to Xenforo really was the death knell for the site when it came to all the users that left. I know I missed it so much and I got way less interested in the site when that feature was gone and I run the site.