Why is my Firefox crashing?

My Firefox version is the latest(2.0.0.1) and I keep updating. I have the following extensions on my browser:

Themes - Noia 2.0 (eXtreme) and the default Firefox theme.

Plugins - , Adobe Flash Player 9, Adobe Shockwave Player.

Other Extensions - Answers, DOM Inspector, DownThemAll!, IE Tab, Tab Mix Plus, Talkback.

Oh, and I've got J2SE(TM) Runtime Environment 5.0 Update 10 too, but its not compatible with Firefox. And that's another problem!!! I can't watch Java content without opening Internet Explorer 7!!!

Back to the main question, why does my Firefox keep crashing? I scan for Viruses, Trojans, Worms, Spyware, Adware, and all types of malware everyday. And I continuously update my AntiVirus and AntiSpyware. So, WHY DOES MY FIREFOX KEEP ON CRASHING? Its crashed approximately 20 times.

These crashes have almost led me to believe that Internet Explorer 7 IS BETTER THAN Firefox 2.

Pleeeeeeeeaaaaaaaasssssseeeeeeeee suggest measures to heal my currently favorite browser, Firefox.

Why is my Firefox crashing?norton

If you have the recent Yahoo Messenger loaded on you computer, you may have a problem with Firefox crashing.

The latest Firefox always would crash on me when I visited my Yahoo! Mail. One possible reason is the bug caused by the stand alone Yahoo! Messenger application. The Yahoo! Application State plugin must be turned off for Y-mail to work properly.