[4.16.0] fullscreen in Firefox doesn't fill the entire screen
How to reproduce:
- open Firefox with CSD enabled (no title bar)
- tile the window to half or quarter of the screen
- press F11 on a regular webpage or click on the fullscreen button on a video
- the content expands and fills the entire screen
- the content expands but it doesn't fill the entire screen. It seems to be limited to the dimensions of the original tiled window (half or quarter of the screen).
Disabling CSD in Firefox fixes the issue.