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Black window opens when I start Firefox. Restarting opens correctly. (Win 7)

  • 1 reply
  • 1 has this problem
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  • Last reply by cor-el

slavick61
slavick61
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I begin using Win 7 recently. And first starting of Firefox noticed this problem. I have to close Ff with Alt+F4 and start it again - and it opens correctly

I begin using Win 7 recently. And first starting of Firefox noticed this problem. I have to close Ff with Alt+F4 and start it again - and it opens correctly

All Replies (1)

cor-el
cor-el
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  • Top 10 Contributor
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What security (anti-virus) software do you have?

It is possible that your firewall or other security software blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.

Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full, unrestricted, access to install for Firefox and the plugin-container process and the updater process.

See:

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.

  • Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
  • Do NOT click the Reset button on the Safe Mode start window

There are other things that need attention.

Your System Details list shows that you have an outdated Flash player version. Shockwave Flash 10.2 r152

You can find the latest Flash player versions here: