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White Bar over top of Firefox and address bar plus half of favorites bar

  • 8 प्रत्युत्तर
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  • के द्वारा अंतिम प्रतियुतर astrupler

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My customer has a problem since about a month on Firefox (using it on a Terminal Server). The top of Firefox gets hidden by white and grey "bar" and he can not even use the "functions" of buttons behind that. -> Please see attached Print screens Lower part of the Favorites-bar is visible and also works if he clicks on it - everything above not visible and does not work for clicking.

The problem only comes up from time to time maybe once or twice a week. When he minimizes Firefox the application behind is visible normally. when he maximizes it again, same problem still visible in Firefox. When he closes RDP Session and reconnects - the problem disappears. When he turns off the monitor where Firefox is visible - Firefox gets move over to the other monitor and the problem disappears.

I am not 100% sure if this is a Firefox problem or Remote Desktop Problem (or maybe an add-in problem). But until now it only happened on Firefox!

He is always on the last recent version of Firefox, we just updated today to the latest version again - but I can not say yet, if the problem would still exist on the latest version from today.

My customer has a problem since about a month on Firefox (using it on a Terminal Server). The top of Firefox gets hidden by white and grey "bar" and he can not even use the "functions" of buttons behind that. -> Please see attached Print screens Lower part of the Favorites-bar is visible and also works if he clicks on it - everything above not visible and does not work for clicking. The problem only comes up from time to time maybe once or twice a week. When he minimizes Firefox the application behind is visible normally. when he maximizes it again, same problem still visible in Firefox. When he closes RDP Session and reconnects - the problem disappears. When he turns off the monitor where Firefox is visible - Firefox gets move over to the other monitor and the problem disappears. I am not 100% sure if this is a Firefox problem or Remote Desktop Problem (or maybe an add-in problem). But until now it only happened on Firefox! He is always on the last recent version of Firefox, we just updated today to the latest version again - but I can not say yet, if the problem would still exist on the latest version from today.
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चुने गए समाधान

All Replies (8)

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Try changing browser.startup.blankwindow and browser.startup.preXulSkeletonUI to false in about:config then restart the browser.

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See also:

  • /questions/1410489 After update to 112 firefox starts with ugly blank white dummy UI before loading
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zeroknight said

Try changing browser.startup.blankwindow and browser.startup.preXulSkeletonUI to false in about:config then restart the browser.

Thanks zeroknight for the solution with changing browser.startup.blankwindow and browser.startup.preXulSkeletonUI to false - I did apply this today, but need to wait some time, to be sure it does not come up again. But looks the right thing so solve it.

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Unfortunately the problem still exists after changing browser.startup.blankwindow and browser.startup.preXulSkeletonUI to false. Would you have any other idea that could produce that? When it last happened - the customer did open a PDF document in the Browser and could then not save it to disk as the white bar covered the area to save it - see print screeen attached:

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चयनित समाधान

Does it still happen with hardware acceleration disabled?

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Does this still happen if you add an invalid/unsupported -xxx dummy parameter to the command/target line in a desktop shortcut?

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Thanks, I deactivated hardware acceleration now and am waiting to see if that helps.

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Since two weeks now the problem has not happened again. It could have just been the disabling hardware acceleration or a combination together with: Try changing browser.startup.blankwindow and browser.startup.preXulSkeletonUI to false in about:config then restart the browser.