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New Laptop HP8760W I have installed Firefox latest beta version. When I am trying to start the Firefox I see under processes it is running but window is not popping up.

I tried all possible ways of running CCleaner cleaning registry – no use, tried uninstalling, reinstalling, restarting, nothing worked.

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Have you tried running a non-beta version? – Oliver Salzburg Aug 4 '12 at 18:31
Are you on the administrator account? – ahmed Aug 4 '12 at 18:38
tried non-beta version and I am running on administrator account. – changeme Aug 5 '12 at 0:12

First of all: any registry cleaner help fixing this problem as well as many others... The best effect of registry cleaners is a placebo effect to say the less...

What you can try is to follow the troubleshooting procedure from Mozilla:

Troubleshoot and diagnose Firefox problems - support

Please note this problem may be related to Windows conditions and not a Firefox problem such as bad sectors, malwares or even some security software parameters...

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tried ... none worked. – changeme Aug 5 '12 at 0:11

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