User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:52.0) Gecko/20100101 Firefox/52.0 Build ID: 20170302120751 Steps to reproduce: Have to monitors on windows 10. In Windows Display settings, change one monitor text size to 125%. Start firefox. Move around to both screens. The 125% font size of common for laptop displays at 1920-1080 resolution. Actual results: One of the screens will have a black box the entire size of the windows with a grey box for the menu and tab sections. Expected results: The window should look normal on both displays. The problem goes away if all monitors are the same 100% text size.
I just found that in about:config changing layers.acceleration.disabled from false to true and restarting firefox fixed the problem.
I am no longer able to reproduce this issue with layers.acceleration.disabled set to either true on false. So, I cannot determine if it fixed the black box on text size issue. I have rebooted my system and don't see the problem with a monitor set at 125% text size and another monitor set at 100% text size.
Sounds like WORKSFORME then.
Status: UNCONFIRMED → RESOLVED
Last Resolved: a year ago
Resolution: --- → WORKSFORME
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