The problems I've been having in Firefox are with badly behaved apps - with memory leaks and stuff. Firefox manages memory better than Chrome, but when a tab leaks it can freeze the whole browser. Still, this happens rarely enough that it isn't an issue for me, plus Firefox is much better at keeping many tabs open. I did disable Flash and now I have to "click to play" - but I'm doing the same thing in Chrome too, because fuck Flash.

I feel like Chrome is better when rendering stuff - like we've got this plotted graph in our app's admin, rendered with Javascript and I believe HTML5 Canvas or something, with too many points on it and Firefox can't handle the rendering, it chokes, whereas Chrome can do it. On the other hand, I feel like Firefox is snappier in general.