I don't like Forums. But, I've tried everything mentioned and Firefox still freezes horribly when I have multiple Facebook tabs open. Also, can't seem to login to this mozilla site because it never gave me the option for a username. I also find it very unusual that Firefox keeps starting Internet Explorer & Internet Explorer 32. Could have something to do with it freezing all the time. To recover where I am, I use my Task Manager to "End Process" so the same tabs will open when I start Firefox again. This has been going on for a year now. Firefox is becoming as bad as Internet Explorer was ... which won't run right on my computer anymore. No, I'm absolutely not going to Windows 10; I'm on Windows 7 Ultimate. Wish I could submit a support-ticket over this stuff, but can't seem to find a way to do that anymore, either. UGH!