Firefox only runs under administrator, will not open under other users.
Running Windows XP Pro SP3. Removed and Reinstalled Firefox. Firefox still will not open under the 2nd user, only Owner/administrator. No error codes given.
Chosen solution
Does disabling extensions has any effect?
If it works in Safe Mode and in normal mode with all extensions (Firefox/Tools > Add-ons > Extensions) disabled then try to find which extension is causing it by enabling one extension at a time until the problem reappears.
Close and restart Firefox after each change via "Firefox > Exit" (Windows: Firefox/File > Exit; Mac: Firefox > Quit Firefox; Linux: Firefox/File > Quit)
Create a new profile as a test to check if your current profile is causing the problem.
See "Creating a profile":
- https://support.mozilla.org/kb/profile-manager-create-and-remove-firefox-profiles
- http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Profile_issues
If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over the problem
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Did you try Safe Mode?
- Safe Mode is a special diagnostic mode of Firefox used for troubleshooting. There are two ways to get into it.
- Hold SHIFT while double clicking the Firefox icon on the desktop
- Execute firefox.exe -safe-mode via the Run command (start > run)
Firefox will start in Safe Mode for 2nd user, but still will not open with just a double-click or through RUN.
Do you mean Firefox Safe Mode?
- https://support.mozilla.org/kb/Safe+Mode
- https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
In Firefox Safe mode these changes are effective:
- all extensions are disabled (about:addons)
- default theme is used (no persona)
- userChrome.css and userContent.css are ignored (chrome folder)
- default toolbar layout is used (file: localstore-safe.rdf)
- Javascript JIT compilers are disabled (prefs: javascript.options.*jit)
- hardware acceleration is disabled (Options > Advanced > General)
- plugins are not affected
- preferences are not affected
YES. We are talking about starting it in "Firefox Safe Mode". 2nd user account can open it in "Firefox Safe Mode", but double-clicking and starting from RUN does not work.
Chosen Solution
Does disabling extensions has any effect?
If it works in Safe Mode and in normal mode with all extensions (Firefox/Tools > Add-ons > Extensions) disabled then try to find which extension is causing it by enabling one extension at a time until the problem reappears.
Close and restart Firefox after each change via "Firefox > Exit" (Windows: Firefox/File > Exit; Mac: Firefox > Quit Firefox; Linux: Firefox/File > Quit)
Create a new profile as a test to check if your current profile is causing the problem.
See "Creating a profile":
- https://support.mozilla.org/kb/profile-manager-create-and-remove-firefox-profiles
- http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Profile_issues
If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over the problem
Thanks so much cor-el for all the help. I do fine with hardware and driver issues, but always get lost in the many different software configurations. THANKS
Modified by kcwomack