I've been using Firefox forever and am currently using Windows 7 64 bit. As far as I know nothing has changed on my end, but Firefox has started running slowly after open… (read more)
I've been using Firefox forever and am currently using Windows 7 64 bit. As far as I know nothing has changed on my end, but Firefox has started running slowly after opening a lot of windows. How I typically use the program, and have done for years, is to open pages in lots of different windows and close them as needed. This usually causes no problems and I can leave the program running for days at a time, running perfectly well.
For the past week or so though, something has changed. Now, when Firefox first starts up, it runs fine, as expected, but then after a period of time, usually within a day, sometimes within hours, it starts feeling "gunked up." At this point, when I try to load a page in a new window, instead of loading instantly, it takes a second or two, during which time I cannot switch to any other Firefox window, but any other programs running work just fine. This state continues and grows slower and slower to load new pages, until I close and reopen Firefox, and then the cycle repeats.
Again, this is a new situation, my normal behavior would not normally cause this sort of slowdown even after a week or more of continuous operation. I have run a virus check and a malware check, no hits on either, and other programs do not seem effected. I tried rebooting as well, but the problem reoccurred soon after. I also turned off most of my add-ons, including ones that have worked fine for months or years, and still no change, it still slogs down after a while. My Firefox is also currently up to date, of course (27.0.1).
What's going on?