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Description of problem: There is a problem with menu of Firefox (and also Thunderbird) when mouse cursor moves to next menuitem - it hides. It is possible to select menuitem with arrows of keyboard but not with mouse. I ran it via vnc, versions of 3.x.y work well. Version-Release number of selected component (if applicable): firefox-10.0.1-1.el6_2, thunderbird-10.0.1-3.el6_2 (and also 5_8 versions) How reproducible: Always Steps to Reproduce: 1. Install FF10 2. Connect computer via VNC 3. Try to click on some menuitem inside menu "File' / 'Edit' / ... Actual results: Menu hides. Expected results: Possible to click on any menuitem. Additional info: I also got an error: "Failed to create drawable", but FF10 and TB10 have been installed with any problem.
I seem to be having a similar problem with 10.0.3 on RHEL 6.2. After not using Firefox for a while using the drop-down menus disappear when you try to select them. I can stop this behaviour temporarily when I minimize and restore the window. I am suspecting this might have something to do with hardware acceleration since I can't duplicate it when desktop effects are off. Firefox also has a hardware acceleration feature that you can access by the following: Edit > Preferences > Advanced > General > Use hardware acceleration when available I'm going to try this out and hopefully it will solve what I'm seeing. I don't use Thunderbird but there might be something similar there.