When a tab is in focus mode, the resulting window has a massive titlebar with lots of blank space. In chrome the titlebar is very slim and contains only the title and the control buttons.
- Enable “Focus Mode” and relaunch the browser
- Right click on any tab > Focus mode
Please see screenshots for comparison.
Beta and Nightly are also affected.
NOTE: I have tested this only on Debian however it may affect all OSs.