Update installed yesterday, now receive message XUL Runner (not compatible) when I try to access Firefox. How can I fix it?

Yesterday (Tuesday), I started FireFox and he said that there was an update, so I clicked on it to install it. Then, when I tried again to use FireFox, I got this message when I clicked on my shortcut. XULRunner. Version of the platform is not cmpatible with MinVersion How can I fix it? Currently, I use Explorer to access the internet. I tried your live chat and did not get a time of 30 minutes each (tried twice) expected answer.

This has happened

Each time Firefox opened

Yesterday, Tuesday after installing one of your automatic updates

User Agent

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; WOW64; Trident/4.0; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; .NET CLR 3.5.30729; .NET CLR 3.0.30729; yie8)

Try a clean reinstall:

  1. Download the Firefox installer from Mozilla.com and save it to your desktop or other location.
  2. Make sure that Firefox is closed completely
  3. Delete the Firefox installation directory (On Windows, this is typically the C:\Program Files\Mozilla Firefox folder that contains "firefox.exe" and other Firefox program files and folders).
  4. Reinstall Firefox by running the installer you downloaded previously.

Your personal settings, including bookmarks and history, will not be lost.

See http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Clean_reinstall

Tags: Firefox

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