I uninstalled Firefox on my computer, then I reinstalled and tried to run, but this message appeared, "failed to load your Firefox profile,"

I uninstalled Firefox on my computer, then I reinstalled and tried to run, but this message appeared, "failed to load your Firefox profile. It may be missing or inaccessible"and Firefox does not open.

I tried press windows key + R on my computer and open %appdata%\Mozilla\ - and rename the folder labeled "Firefox", but he said that "the action cannot be complete because the folder or the file that is open in another program" I didn't open it and try to restart the pc, but still no help

A likely cause is a problem with the file profiles.ini and the profile marked as the default value = 1 in this file is no longer present on the hard drive.

  • Windows: %AppData%\Mozilla\Firefox\
    C:\Users\ < user > < profile > \AppData\Roaming\Mozilla\Firefox\Profiles\.
  • Linux: ~/.mozilla/firefox/
  • Mac: ~/Library/Application Support/Firefox /.

You can use one of them to make the Creation/use of a new default profile for Firefox:

  • Remove the profiles.ini file to force Firefox to create a new default profile
  • Use the Profile Manager to create a new profile
  • Use "Choose a folder" when you create a new profile to select the location of a lost profile and recover this profile

Tags: Firefox

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