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Firefox will not open at all, and wen I try to uninstall it tell me that Firefox must be closed to proceed with te uninstall even though it is not open.

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Firefox will not open at all, and wen I try to uninstall it tell me that Firefox must be closed to proceed with te uninstall even though it is not open.

Firefox will not open at all, and wen I try to uninstall it tell me that Firefox must be closed to proceed with te uninstall even though it is not open.

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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.