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Lolu chungechunge lwabekwa kunqolobane. Uyacelwa ubuze umbuzo omusha uma udinga usizo.

When I scroll in Firefox, a line of distortion shows up horizontally across the page. It happens in no other applications.

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When I scroll in Firefox, a feint but noticeable line of distortion (directly in line with where my cursor is grabbing and dragging the scroll bar) shows up horizontally across the page in many Firefox windows. It happens in no other applications. Mac OS X 10.7, Lion on a Mac Mini Server, 2011. Any suggestions or files I ought to remove to make this go away?

When I scroll in Firefox, a feint but noticeable line of distortion (directly in line with where my cursor is grabbing and dragging the scroll bar) shows up horizontally across the page in many Firefox windows. It happens in no other applications. Mac OS X 10.7, Lion on a Mac Mini Server, 2011. Any suggestions or files I ought to remove to make this go away?

Okulungisiwe ngu earthman7

Isisombululo esikhethiwe

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Try to disable hardware acceleration.

  • Firefox > Preferences > Advanced > General > Browsing: "Use hardware acceleration when available"

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).

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Try to disable hardware acceleration. Firefox > Preferences > Advanced > General > Browsing: "Use hardware acceleration when available"

The simple instructions above did it!!! I didn't understand the other instructions you gave about Safe Mode, but didn't need that anyway.

Thanks for your help!

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Isisombululo Esikhethiwe

You're welcome