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problems to update firefox

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I run Firefox on my computer under Win XP SP3 I use Avast antivirus I have no script running as a plugin in Firefox Since a few updates, I cannot update my firefox as he says: cannot update firefox as Firefox is yet running on this computer restart it but nothing runs else than windows, I don't understand my onlys solution is to remove Firefox and re-load it...

I run Firefox on my computer under Win XP SP3 I use Avast antivirus I have no script running as a plugin in Firefox Since a few updates, I cannot update my firefox as he says: cannot update firefox as Firefox is yet running on this computer restart it but nothing runs else than windows, I don't understand my onlys solution is to remove Firefox and re-load it...

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The symptom sounds like Firefox is "hanging at exit"and not completely closing down.

  1. Stop the Firefox process:
  2. Why Firefox may hang:
  3. Use Firefox Safe Mode to find a problem with an Extension or Plugin:


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Not related to your question, but...

You need to update some plug-ins: