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Right click occasionally causes menu to disappear on mouseover

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djoITG
djoITG
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Ubuntu 11.04 64-bit, 2.6.38.11 kernel, Firefox 6.0.2 Unity DE

On random occasions, right-clicking anywhere (either the web page or UI) and attempting to mouseover the right-click menu causes the menu to disappear. I can still activate functions by pressing the underlined letter key, provided I actively keep the mouse cursor away from the menu.

Ubuntu 11.04 64-bit, 2.6.38.11 kernel, Firefox 6.0.2 Unity DE On random occasions, right-clicking anywhere (either the web page or UI) and attempting to mouseover the right-click menu causes the menu to disappear. I can still activate functions by pressing the underlined letter key, provided I actively keep the mouse cursor away from the menu.

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cor-el
cor-el
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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 and later Safe mode disables extensions and disables hardware acceleration.

  • Edit > Preferences > 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.