Have used Disc Doctor for over 2 years without problems. Updated to new version. Cannot open Mozilla Firefox browser because updated Disc Doctor deleted my Firefox profile folder, despite the fact that I specified not to delete my Firefox and Mozilla files. To fix the problem, you have to go to finder menu/go (press option)/library/application support/firefox to delete the profiles.ini file, relaunch Firefox and then reset it the way you had it before, including importing your bookmarks, if you’ve save them. If you haven’t saved the bookmarks, they’re gone. BEWARE!!
Os Xx about Disk Doctor: System Cleaner