You don't hear that much about IE. Hope Firefox gets the bugs out soon.I using IE more now as its more stable.
FF has been crap sonce 3.0 came out. I'm running same as you and does it also . I using IE more now as its more stable.
If you mean add-ons; I have AdBlock Plus 1.1.3, IE View 1.4.5, Searchbar Autosizer 1.4.5 and United States English Dictonary 4.0.0. They've been carried over, I update them every time I update Firefox.OP, are you using any extensions to FF?
... I used to have 30+ windows and 200+ tabs open at a time. I've since used TooManyTabs (https://addons.mozilla.org/en-US/firefox/addon/9429) to help me keep windows and tabs under control. I've been trying to keep it to a minimum but I just can't change my habit. I'm currently at around 15 windows and 80 tabs.
holy shit man, you having a riot on your desktop? Imagine session manager trying to save over 200 tabs every time... Trying turning off your session manager in Firefox or TabMixPlus, and see if that helps your pausing problem.