We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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

Èròjà atẹ̀lélànà yii ni a ti fi pamọ́ fọ́jọ́ pípẹ́. Jọ̀wọ́ béèrè ìbéèrè titun bí o bá nílò ìrànwọ́.

Launching Firefox

  • 2 àwọn èsì
  • 0 ní àwọn ìṣòro yìí
  • 1 view
  • Èsì tí ó kẹ́hìn lọ́wọ́ cor-el

barton1899
barton1899
more options

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.
Ìsopọ̀ yíyà aṣàfihàn

All Replies (2)

Terry
Terry
more options

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
  • Moderator
  • Top 10 Contributor
more options

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.

Ti ṣàtúnṣe nípa cor-el