FIX Your Firefox Profile Cannot be Loaded on Windows 10


ini file, using these steps:
  1. Click on the Windows Start button and click on Run…
  2. Type %appdata% in the Run box and click OK. The hidden Application Data folder will open.
  3. Double-click the Mozilla folder.
  4. Double-click the Firefox folder.
  5. Delete (or rename, for example, to profiles. iniOLD) the profiles. ini file.
How do I force Firefox profile?
Try¬†to Profile Manager – Create, remove or switch Firefox profiles In the options you can select “Don’t ask at startup” (If you have multiple profiles, Firefox prompts you for the profile to use each time you start Firefox. Select this option to allow Firefox to load the selected profile without prompting at startup.