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Can't see options in drop-down list

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When I click a drop-down list, only the tiny part on left-top side will show up. Still I can use arrow key to select options, but I won't know what option have been selected until I press enter.

In the first time to launch firefox after I try to reset firefox, or make a clean remove and reinstall, the drop-down list works fine.

When I close the firefox and launch again without any additional setting or add-on. The problem occurs.

This picture show the problem: http://i.imgur.com/5fKK9S1.png

How can I fix this problem? please Help.

When I click a drop-down list, only the tiny part on left-top side will show up. Still I can use arrow key to select options, but I won't know what option have been selected until I press enter. In the first time to launch firefox after I try to reset firefox, or make a clean remove and reinstall, the drop-down list works fine. When I close the firefox and launch again without any additional setting or add-on. The problem occurs. This picture show the problem: http://i.imgur.com/5fKK9S1.png How can I fix this problem? please Help.

All Replies (2)

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You can try to disable hardware acceleration in Firefox.

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

You need to close and restart Firefox after toggling this setting.

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thank you for reply, this is helpful!!