Firefox Error : Jar File not found

[Kingfisher]

Hi,

I keep getting Firefox can't find the file at jar:file:///C:/Program Files/Mozilla Firefox/chrome/en-US.jar!/locale/browser-region/region.propertiescomment..... When starting firefox. I don't know why. It was fine with FF 3, but when I upgraded, it just started to give this error.

[goatape]

"Jar File not found" that a kind of class is usually provided by your Servlet. In JSP, the file is automatically added to the classpath to compile the generated Java code. Try searching jars to find the class, then add the jars to the classpath.

[Icarusul]

Perhaps one of the extensions is causing problems. If you installed the new or updated extensions, some of them recently, then try to disable these.

You can start Firefox in safe mode to see if your problem is caused by an extension or theme (try the Default theme). If you start in safe mode works then disable extensions (Tools> Add-ons> Extensions or use the window in safe mode) and re-enable them one by one until you find what the cause.
Close and restart Firefox after each change.

[Simpson]

Some Firefox issues can be resolved by downloading a new Firefox installer from Mozilla.com and close Firefox completely, by removing the Firefox program installation and reinstall Firefox. (In a typical installation of Windows to delete the C: \ Program Files \ Mozilla Firefox folder and then reinstall Firefox.) Note that on Windows systems, eliminating the Firefox installation directory before reinstalling also fix some problems with the browser plugins that may have been installed to the plugins "Firefox" folder or remains of other files installed by third-party software.