Hi, You can try copying the exact folder names inside the [http://kb.mozillazine.org/Profile_folder Firefox Profiles folder] into the '''profiles.ini''' file in the correct format after exiting Firefox. Please see [http://kb.mozillazine.org/Profiles.ini_file this].

Is only the profiles.ini file gone and are the profiles still there? *http://kb.mozillazine.org/profiles.ini_file *http://kb.mozillazine.org/Profile_folder_-_Firefox In that case you can use the Profile Manager to re-register all profile by choosing the location of each profile when you create a new profile. *http://kb.mozillazine.org/Profile_Manager * http://kb.mozillazine.org/Recovering_a_missing_profile *http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox *https://support.mozilla.org/kb/Recovering+important+data+from+an+old+profile