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Unable to restart Firefox after closing without complete PC restart, updated to version 6.0.2., problem still exists.

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After session with Firefox 10.0.2 and closing program, unable to restart Firefox unless PC restarted, or closing process in Task Manager.

After session with Firefox 10.0.2 and closing program, unable to restart Firefox unless PC restarted, or closing process in Task Manager.

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That is called "hang at exit" and can be caused by a number of issues, including an Extension or a Plugin. Look at the following.

  1. Stop the Firefox process (you already know how to do this):
  2. Why Firefox may hang:
  3. Use Firefox Safe Mode to find a problem with an Extension or Plugin:


If this reply solves your problem, please click "Solved It" next to this reply when signed-in to the forum.



Not related to your question, but...

You need to update some plug-ins: