I have noticed lately that Firefox crashes a lot more frequently than before. Why? I am careful to install all Firefox updates.
Firefox has been crashing on many sites, not just Facebook. I started using Firefox years ago because of spamming issues with email. Now I get more spam than ever before and many websites crash while on them. I update the Firefox whenever there is an update. If you can't stabilize Firefox, I will be forced to go back to Internet Explorer which I do NOT like.