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When I double-click the desktop icon I get an error message: XUL RUNNER error: Platform version '2.0.1' is not compatible with minVersion >=5.0 maxVersion <=5.0. I must right click the icon and choose 'RUN OUTSIDE THE SANDBOX' to open the browser.

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  • Last reply by Cgaines

Cgaines
Cgaines
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This problem occurred shortly after updating to Firefox 5.0 I kept getting reminders to update to 5.0 When I finally decided to update, the first 4 or 5 attempts failed for one reason or another always with a different error message At some point after and extended shutdown of the computer 5.0 was initiated.

This problem occurred shortly after updating to Firefox 5.0 I kept getting reminders to update to 5.0 When I finally decided to update, the first 4 or 5 attempts failed for one reason or another always with a different error message At some point after and extended shutdown of the computer 5.0 was initiated.

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cor-el
cor-el
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The updater wasn't able to update all the files and some were left as older versions.

You need to do a clean reinstall.

Download a fresh Firefox copy and save the file to the desktop.

  • Uninstall your current Firefox version.
  • Do not remove personal data when you uninstall the current version.

Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.

  • It is important to delete the Firefox program folder to remove all the files and make sure that there are no problems with files that were leftover after uninstalling.

Your bookmarks and other profile data are stored elsewhere in the Firefox Profile Folder and won't be affected by a reinstall, but make sure that you do not select to remove personal data if you uninstall Firefox.

Cgaines
Cgaines Question owner
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I did as suggested. I did have a problem trying to download the new version on the computer that has the problem. It always reverted directly to the existing browser file location. I could never get it to load to the desktop or any other location. I finally downloaded 5.0 to a flash drive on another computer. I uninstalled the existing version of Firefox. After the 'uninstallation' I went to the directory and even removed the empty folder labeled Mozzilla as well as a few other files that were left over. I downloaded the latest 5.0 version to the computer. When I double-clicked the Icon I received the exact same message as before. I am still able to launch by selecting 'run outside the sandbox' after right-clicking the icon.