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Launching Firefox

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  • Last reply by cor-el

barton1899
barton1899
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After installing Apple Ventura, and trouble with User Accounts, Firefox won't open, giving me the error message about not finding or having a Profile.

I did all of the suggested fixes on the Help pages, renaming files with "OLD" etc., finally deleting the entire Firefox folder in Library/Application Support, and the program still won't launch and gives me the same message about not finding a "profile."

Please advise how I can eradicate every trace of Firefox on the computer and start over; the program should create a new profile and let me use the program, but it's refusing to do so.

After installing Apple Ventura, and trouble with User Accounts, Firefox won't open, giving me the error message about not finding or having a Profile. I did all of the suggested fixes on the Help pages, renaming files with "OLD" etc., finally deleting the entire Firefox folder in Library/Application Support, and the program still won't launch and gives me the same message about not finding a "profile." Please advise how I can eradicate every trace of Firefox on the computer and start over; the program should create a new profile and let me use the program, but it's refusing to do so.
Attached screenshots

All Replies (2)

Terry
Terry
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You can create a new profile with Firefox closed.

https://support.mozilla.org/en-US/kb/profile-manager-create-remove-switch-firefox-profiles

See also

https://support.mozilla.org/en-US/kb/how-run-firefox-when-profile-missing-inaccessible

cor-el
cor-el
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Firefox uses two locations in the hidden "~/Library" location for the Firefox profile folder. One location in "~/Library/Application Support" for your personal data (e.g. bookmarks) and another location in "~/Library/Caches" for temporary files like the disk cache.

Primary location used for the main profile that keeps your personal data (Root Directory on about:profiles).

  • ~/Library/Application Support/Firefox/Profiles/<profile>

Secondary location used for the disk cache and other temporary files (Local Directory on about:profiles).

  • ~/Library/Caches/Firefox/Profiles/<profile>

Also check the read/write permissions and ownership of files and folders in both main/root and cache locations and possibly rename/remove the Firefox folder.

Modified by cor-el