Mozilla Firefox error/problem

[LucharesuFan619]

It's worked fine for me ever since I got it, but all of a sudden yesterday I started getting this screen when I opened it up. I've restarted my computer multiple times, right clicked on the Mozilla Firefox icon on my desktop and scanned it for viruses (none came up), etc. and I keep getting this same screen. Does anybody know what I can do to make it go back to normal?

 

[Insane Bump Machine]

did you just install a new extension? That could've caused the problem.

 

You'll probably have to reinstall Firefox anyway. And I mean a complete reinstall, deleting everything except your bookmarks and install everything again. The problem is quite common, just google the message you're getting.

[LucharesuFan619]

Thanks for the quick reply. I typed in the message exactly as it appears on the above image and searched for that message and got no results. I put quotes at the beginning and end and I left quotes out and both times, no results came up. How do I go about uninstalling it, and once/if I uninstall it, how do I reinstall it? Do I just to Add/Remove Program, or something different? Thanks again.

[Insane Bump Machine]

Google it without the last line, like this:

http://www.google.de/search?q=%22xml+parsi...:De-DE:official

 

Use Add/Remove program to uninstall. Restart your PC. Then locate the Firefox folder and delete everything that's still there. Backup your Bookmarks of course. Then reinstall.

[LucharesuFan619]

But how do I reinstall it after I've uninstalled it?

[Insane Bump Machine]

What do you mean? If you don't have the Firefox setup files on your computer anymore just download it again from their homepage:

 

http://www.mozilla.org/products/firefox/all.html

[LucharesuFan619]

Oh, OK. Thanks!