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Weird window behavior after trying to update FF to 10.

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After trying to update my FireFox 9.0.1 to version 10.0 or 10.1 I have weird problems with browser window theme. It begins just when the installation ends and FireFox is checking the compatibility of addons and themes. Green bar in loading of that process is blanked in the bottom part by white bar. When Browser window pops-up I see lots of errors in window graphics like: blank places, tab bar goes 2cm lower then usuall, if I click anywere text goes elsewhere. I can't use that browser so I downgraded it to 9.0.2 and it works fine.

After trying to update my FireFox 9.0.1 to version 10.0 or 10.1 I have weird problems with browser window theme. It begins just when the installation ends and FireFox is checking the compatibility of addons and themes. Green bar in loading of that process is blanked in the bottom part by white bar. When Browser window pops-up I see lots of errors in window graphics like: blank places, tab bar goes 2cm lower then usuall, if I click anywere text goes elsewhere. I can't use that browser so I downgraded it to 9.0.2 and it works fine.

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It looks like this (website that I visit doesn't matter, now it's wp.pl)

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Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance/Themes).


Try to disable hardware acceleration.

  • Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"

If disabling hardware acceleration works then check if there is an update available for your graphics display driver.

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Thx for the answer. Safe mode worked. I disabled Hardware acceleration and now its working fine. I just wonder what's the problem with it. I got the newest drivers from nvidia, that is 285.62 for my MSI Nvidia GTX560 card. Sometimes I also have crashes of this driver when I use FireFox (even this 9.0.1). It's rare but it hapens. I read that lots of people have that problem with nvidia and FireFox. Again thanks for answer. Can I go higher with this bug to the people who can fix this in later versions. It is a bug and I think lots of people have it.

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You're welcome