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xulRunner, "couldn't read application init

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  • 14 have this problem
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  • Last reply by cor-el

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hello, on FF vers 4.0, vista 32, on opening I get message: xulRunner, "couldn't read application init" impossible to open FF several install and desinstall can you help please. best regards

hello, on FF vers 4.0, vista 32, on opening I get message: xulRunner, "couldn't read application init" impossible to open FF several install and desinstall can you help please. best regards

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Do a clean (re-)install:

  • Uninstall your current Firefox version and remove the Firefox program folder before installing that copy of the Firefox installer.
  • Do not remove personal data if you uninstall the current version.
  • 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.