Tor Browser and Unsafe Browser have no minimize & maximize buttons in the window titlebar
Regression in 5.8 (wb:b841a57a2e3b3d4752a73c974a75e3c5). I suppose that's because we run them as native Wayland apps, so they're responsible for CSD (client-side decoration).
It looks like Firefox tries to honor the system config regarding titlebar content:
git grep -E 'button-layout|gtk-decoration-layout'in the Firefox Git repo
Could it be that we block its access to said system config?
User research findings
This issue has been pretty loud on our Help Desk since it 5.8.
During #18648 (closed), 3 out of 4 participants wanted to minimize Tor Browser and complained about the lack of minimize button. None of them found the workaround.
Both operations are accessible from the window list.