pauloaguia: Yea, check your add-on's for Firefox. Yea, there are a lot of cool ones out there, but the more you have the"bigger" Firefox gets... and possible slower it will move.
Remove the ones you rarely use. Disable the ones you don't use often.
(hide) When moving in a game you can choose which one will show up next by selecting the appropriate option in the list next to the submit button. (pauloaguia) (show all tips)