White Bar over top of Firefox and address bar plus half of favorites bar
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.
All Replies (7)
Try changing browser.startup.blankwindow and browser.startup.preXulSkeletonUI to false in about:config then restart the browser.
See also:
- /questions/1410489 After update to 112 firefox starts with ugly blank white dummy UI before loading
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.
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:
Does this still happen if you add an invalid/unsupported -xxx dummy parameter to the command/target line in a desktop shortcut?
Thanks, I deactivated hardware acceleration now and am waiting to see if that helps.
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