Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Lolu chungechunge lwabekwa kunqolobane. Uyacelwa ubuze umbuzo omusha uma udinga usizo.

XUL runner msg says 15.0.1 not compatible w/min<14.0.1 max >14.0.1

  • 3 uphendule
  • 9 zinale nkinga
  • 1 view
  • Igcine ukuphendulwa ngu cor-el

sv_ctb
sv_ctb
more options

We have 14.0.1 on a W7 x64 machine. We downloaded the 15.0.1 install and when we tried to run it we get the XUL message above. What can we do to recover as we can't start firefox anymore. Thnx for your help.

We have 14.0.1 on a W7 x64 machine. We downloaded the 15.0.1 install and when we tried to run it we get the XUL message above. What can we do to recover as we can't start firefox anymore. Thnx for your help.

Isisombululo esikhethiwe

hello, this error might be caused by security programs such as zone alarm - please temporarily disable those programs for the following procedure:

  • download the full firefox 15.0.1 setup file from getfirefox.com
  • uninstall firefox on the machine (but don't chose to delete your custom files & settings in the uninstaller)
  • manually delete all remaining files in the firefox program folder, which usually resides in C:\Program Files (x86)\Mozilla Firefox\
  • reinstall firefox
Funda le mpendulo ngokuhambisana nalesi sihloko 👍 0

All Replies (3)

philipp
philipp
  • Moderator
more options

Isisombululo Esikhethiwe

hello, this error might be caused by security programs such as zone alarm - please temporarily disable those programs for the following procedure:

  • download the full firefox 15.0.1 setup file from getfirefox.com
  • uninstall firefox on the machine (but don't chose to delete your custom files & settings in the uninstaller)
  • manually delete all remaining files in the firefox program folder, which usually resides in C:\Program Files (x86)\Mozilla Firefox\
  • reinstall firefox
rpeake
rpeake
more options

You might consider changing the dependency to require zulrunner version >15.0.0instead of the current maxversion 15.0.0 minversion 15.0.0 (as it appears on my error message in win 7 64-bit).

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

See:

Do a clean reinstall and delete the Firefox program folder (C:\Program Files\Mozilla Firefox\) 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.