User-Agent: Mozilla/5.0 (Windows; U; Win98; ru-RU; rv:1.7.5) Gecko/20041108 Firefox/1.0 Build Identifier: Mozilla/5.0 (Windows; U; Win98; ru-RU; rv:1.7.5) Gecko/20041108 Firefox/1.0 Next time Firefox was executed everything was back as on fresh install Reproducible: Didn't try
Did you have a crash/BSOD before? Did you have a select/create profile dialog on start?
no BSOD or Crash. It was not me who ran that time Firofox, but my Father, he said there was a quetion or questions on the start, he didn't read them but pressed some choice.
Probably he managed to get the profile manager up and delete the profile. Since more info is missing and probably won't arrive ==>wfm