I have a lot of extensions and was wondering if they made firefox run slower if they were not in use at the time.
i have alot of ext. and i haven't noticed a difference. i have adblock, foxytunes, tabbrowser prefrences, download manager tweak, play launch, customize google, no script, IE view, and gtranslate. having alot of ext. shouldn't affect that much
I don't think they would slow down Firefox. Possibly if you had a whole lot. (EX. 6,125.) I only use IEView and BugMeNot.
Having a lot of extensions only slows down the time it takes to open up Firefox, other than that, I haven't noticed any difference in browsing speed.