4 ms·

I think they meant that you lose your windows after a reboot, because Firefox only restores one window, compared to all of your groups.

• lionelw 2y ago
  Firefox restores all windows.
  • jay_kyburz 2y ago
    If you close your windows in the wrong order, you will lose your tabs and pinned tabs. Example: Have a primary window with you email, calendar and important sites pinned. Then open another window and open a few tabs. Then at the end of the day, close your primary window first, then discover you still have the secondary window open and close it as well. When you restart Firefox you will get the secondary window and your "primary" window will be lost with all your pinned tabs. I actually went down a rabbit hole of trying to log it as a bug, but the behavior is by design apparently.
    • niutech 2y ago
      Use Ctrl-Shift-Q so that all windows are closed at once.
    • krageon 2y ago
      You can reopen the window you're missing with ctrl+shift+n, the same way you open a formerly closed tab (only that's not n, that's t). I do agree it's irritating this isn't made more plain.