Long Bookmark menu drop down tab goes black when extended

I have a long list of bookmark and everything seems fine at first when the bookmark tab is selected. When 'down' arrow is selected to expand the list of bookmarks in the background color changes to black and each individual line is illegible. The icons on the left side of the column are visible, and each individual line is readable when the pointer passes over it. what activity on the tab is on hold for 4 seconds the tab background color will return the normal gray color. This also occurs when you move the pointer to the top and press 'up' at the top of the list. The subfolders on the bookmark tab do not appear to be affected by this issue. This occurs even after I turned off hardware acceleration.

I am running on a computer newly built with a processor i5, 8 GB of memory under Windows 8.1 64 bit and Firefox version 40.0.3.

You can try to disable hardware acceleration in Firefox.

  • Tools > Options > advanced > General > Browsing: "use hardware acceleration when available.

You will need to close and restart Firefox after enabling/disabling this setting.

You can check if there is an update for your display driver graphic card and search for hardware acceleration of related issues.

Start Firefox in Safe Mode to check if one of the extensions (Firefox/tools > Modules > Extensions) or if hardware acceleration is the cause of the problem.

  • Put yourself in the DEFAULT theme: Firefox/tools > Modules > appearance
  • Do NOT click on the reset button on the startup window Mode safe

Tags: Firefox

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