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When I go to a drop down menu, for example bookmarks, I mouse over the text and it turns color with a dark bar; can this be fixed?

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I am running Firefox 5 currently. Ever since the last update to Firefox 4 and currently with firefox 5 I have had this issue. The dropdown menu is normal when it first drops down. When i move my cursor over the text in the menu it changes to a dark blue bar and remains that way until I close the dropdown, it resets until i dropdown and mouseover again. When I make a selection in the menu it works fine.

I have also noticed that the buttons in the browser and in certain websites have a "sweetspot" you have to hit for the button to function. In past versions if you clicked anywhere on the graphical button it would function.
I am running Firefox 5 currently. Ever since the last update to Firefox 4 and currently with firefox 5 I have had this issue. The dropdown menu is normal when it first drops down. When i move my cursor over the text in the menu it changes to a dark blue bar and remains that way until I close the dropdown, it resets until i dropdown and mouseover again. When I make a selection in the menu it works fine. I have also noticed that the buttons in the browser and in certain websites have a "sweetspot" you have to hit for the button to function. In past versions if you clicked anywhere on the graphical button it would function.

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


In Firefox 4 Safe mode disables extensions and disables 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.