Crash

Hi.
Please go to about:crashes in your address bar. Get the most recent ID. If you cannot open firefox please read this page, and get an ID. I can analyze the ID, and get you an answer. Read this page to see how to get your ID outside of firefox.

When firefox crashes, it creates a report that explains the crash and possible causes. If your firefox can open the point where you can enter addresses, you could type - [about:crashes] to access these reports. pick the report that is similar to your crash and you can send it to Mozilla Firefox for clarification.
However a series of known issues could be causing your browser to crash; For example, if you have old version of the Google tollbar installed in your firefox broser, it could be the cause behind the crash. Also, if you have the vlc media player plugin installed, your browser might crash when you try to play videos that would play with Windows Media player by default. In addition, if you have Yahoo Messenger installed, trying to aces yahoomail could cause the broswer to crash. And the list goes on. So the thing you could do is try and remember what plugins you could have installed or updated, what software you installed prior to your firefox crashing and uninstall them, or even simply disable them for a bit. In addition, check and make sure your Anti-Virus is really up-to-date and that A full scan happened most recently. Malwares are prone to causing random computer behaviour

crash may be due to many reasons. it may be possible tht there may be some problem with ur system or firefox is uncompatible with ur system. i would suggest u shld visit techbuddies for a free diagnosis of ur system, on the below mentioned link.
http://tinyurl.com/m7ghqz