white bars on sides of window when title bar is disabled
Since three updates ago there are white bars on three sides of my Firefox window whenever I disable the title bar. (The bars should be visible if you open the first picture I've attached over a coloured background. The second picture shows the bars disappearing when the title bar is switched on.)
This problem persists in Safe Mode and even after a fresh installation of Firefox, so I am confident that my add-ons and themes are not the issue. The bars also show up when using the Firefox default theme, so a custom theme is not the problem either.
I have also tried, to no avail: Updating my graphics driver, changing my screen scaling, cleaning the registry. And of course simply restarting my computer.
I am at a loss as to what the issue is or how I can fix it.
Hmm, I can't think of a good reason for any kind of borders on a maximized window. However, I'm running Windows 10 and I can't test Windows 8.x myself.
Is Firefox the only application that is affected?
Is Full HD the native resolution of your monitor?
I actually figured this out after someone linked to this post on Reddit and I happened to see it. Just like that person I was running Firefox in compatibility mode for an older version of Windows. I don't have any idea how that got switched on, but my problem is solved either way.