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Trying to install profile from USB drive into newly downloaded FF and now can't open FF?

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I switched computers at work. Before they took away my old unit, I downloaded my Profile folder onto my thumb drive. On my new system, I downloaded FF, went to the folder where the Profile is located, added my old profile and deleted the new profile. Now every time I try to open FF, it says that it is already running and I need to close or restart my system. I have looked in Task Manager and FF is not listed as an application that is running. I have restarted and nothing has helped. The only thing that I have been able to do to actually open FF is uninstall and reinstall it. I still can't get my previous Profile loaded. And I had a lot of add-ons and bookmarks (and tabs open, ugh). Help

I switched computers at work. Before they took away my old unit, I downloaded my Profile folder onto my thumb drive. On my new system, I downloaded FF, went to the folder where the Profile is located, added my old profile and deleted the new profile. Now every time I try to open FF, it says that it is already running and I need to close or restart my system. I have looked in Task Manager and FF is not listed as an application that is running. I have restarted and nothing has helped. The only thing that I have been able to do to actually open FF is uninstall and reinstall it. I still can't get my previous Profile loaded. And I had a lot of add-ons and bookmarks (and tabs open, ugh). Help

All Replies (2)

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You probably didn't copy the file profiles.ini.

See http://kb.mozillazine.org/Recovering_a_missing_profile

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You would have been better off copying the contents of the Profile on the USB stick into your existing Profile on the new PC, overwriting the existing files in that Profile.
http://support.mozilla.com/en-US/kb/Recovering+important+data+from+an+old+profile

Now Firefox doesn't recognize that "new" Profile, because it isn't listed in the profiles.ini file; and since you deleted the original Profile, Firefox will create a new Profile to replace the missing one.