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Installed Firefox but it won't run. What to do?

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  • 2 have this problem
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  • Last reply by FredMcD

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I installed FF but it doesn't start up upon completion of the install and it won't run from the taskbar or the .exe. It just sits there.

The .exe file is just 368k -- maybe it didn't download entirely? Wondering how to get this up and running.

Thanks for your help!

I'm on Windows 7.

I installed FF but it doesn't start up upon completion of the install and it won't run from the taskbar or the .exe. It just sits there. The .exe file is just 368k -- maybe it didn't download entirely? Wondering how to get this up and running. Thanks for your help! I'm on Windows 7.

All Replies (3)

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Where did you get the installer from?

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Thank you for your help.

I followed the instructions carefully and got the same result – the taskbar icon glows about 5 seconds like it’s trying to start and then fades off. It’s so weird. The application is 378k?

Could there be any other thing blocking it on this machine?

Thanks again. Deborah

Modified by ddinzes

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It could be many things. Do these next and let us know the results

Start Firefox in Safe Mode {web Link} by holding down the <Shift>
(Mac Options)
key, and then starting Firefox. Is the problem still there?


Start your Computer in safe mode with networking. Then start Firefox. Try Safe web sites. Is the problem still there?

Starting The Computer In Safe Mode;
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