firefox wont start even in safemode tried reinstall, clean uninstall try different versions not work running windows xp .firefox had updated i dont know what it just said will start aftet installing updates but it never did only shows in task manager. i tried renaming to firefox1 start safemode just hour glass shows for few seconds and it dont start, delete cache, registry and appdata files program files all files to do with firefox then install old version i cant see to understand this.THIS NEVER HAPPENED BEFORE.