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unable to load JRE functions for the Mozilla 20

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  • 1 has this problem
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  • Last reply by ktweedale

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I have tried downloading the newest browser and it says unable to lad JRe functions

I have tried downloading the newest browser and it says unable to lad JRe functions

All Replies (4)

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Do you mean XRE functions?

Do a clean reinstall and delete the Firefox program folder before reinstalling a fresh copy of Firefox.

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

Uninstall your current Firefox version, if possible, to cleanup the Windows registry and settings in security software.

  • Do NOT remove personal data when you uninstall your current Firefox version, because all profile folders will be removed and you will also lose your personal data like bookmarks and passwords from profiles of other Firefox versions.

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

Your bookmarks and other profile data are stored in the Firefox Profile Folder and won't be affected by an uninstall and (re)install, but make sure that "remove personal data" is NOT selected when you uninstall Firefox.

If you keep having problems then also create a new profile.


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It still shows unableto load XRE functions

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You did make sure to remove the Firefox program folder?

Did you try a new profile?

Create a new profile as a test to check if your current profile is causing the problems.

See "Creating a profile":

If the new profile works then you can transfer some files from an existing profile to the new profile, but be careful not to copy corrupted files.


Try to run the Firefox program once as Administrator (right-click: Run as Administrator).

Try to boot the computer in Windows Safe mode with network support (press F8 on the boot screen) as a test to see if that helps.

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yes everything to do with Mozilla is off my computer.