NEVER INSTALLED ANY WINAMP ADD ONS ON FIREFOX.
If you installed the add ons, it will crash your firefox.
Firefox will never show up. Only run in the background.
If you uninstall Firefox and winamp.
The add ons still can't be removed from Add/Remove programs.
Even if you reinstall winamp/firefox, the problem still exist.
Workaround / solution.
You must have firefox to uninstall winamp toolbar add on.
Run firefox in safe mode.
Go to RUN.
Write : firefox -safe-mode
Check all option. (disable and reset firefox).
After you are able in opening firefox.
Uninstall all add ons.
Hope your firefox gonna be alright.
Somteimes the problem is in firefox safe mode that can't be opened.
In this case, sorry to hear that.
You are unable to use firefox anymore.
Just wait for later update from winamp or firefox.