Firefox does not tile

[MikiVanousek]

Symptom
In Firefox (FF) general settings, I check restore session. When I log out, and then open FF, the resulting windows was not tiled, and I did not find a way to tile it.

• Toggling floating window does not work. The only solution for now is to keep the setting to restore the session off.
• If I open a new window, while the old one is still open, the new one tiles.

Edit: If restore session is not selected, the resulting windows also does not tile, but if you close it and reopen in, it fixes the issue.

How to Reproduce

1. Set FF to restore session in General settings
2. With FF running, log out, then back in
3. Start Firefox

Expected behavior
The FF window should be tiled

Environment

• Distro: Archlinux
• KWin version: kwin 5.22.5
• Krohnkite version: 0.8, d9b3d2f
• List of KWin scripts in use: Just Krohnkite

Notes
Kudos for developing this. :)