Re: Your Firefox profile cannot be loaded. It may be missing or inaccessible
I changed my ini file, all you need to fix it. Find the location C:\Users\Marian\AppData\Roaming\Mozilla\Firefos, open the ini file in notepad, then open the location C:\Users\Marian\AppData\Roaming\Mozilla\Firefox\Profiles, and see how Mozilla called a profile, may be more than one. It should be something like this rjuijto8.default. Makes your ini file should look like this
StartWithLastProfile = 1
Name = default
IsRelative = 1
Path = Profiles/rjuijto8.default
If you have more than one profile Try to change the ini file until you see that your settings.