I have Firefox 19 installed on 5 computers at home and 28 I support, none of which are having the problem. I'd check my addons. Click Tools -> Addons.
About one week ago Mozilla Firefiox began to crash each time I opened it on my laptop. I prefer it over Explorer, however, I've been forced to use Explorer ever since. My husband is having the same problem with Firefox both on his school computer and on his laptop. I've stopped using Firefox at school because it won't allow me to open my gradebook anymore. What is causing this and how can we fix it? Any help will be appreciated. Thank you.