I have a rogue Firefox Window which has no tab bar, and no orange Firefox menu button. It has no back button either, nor no home or bookmarks buttons. My other Firefox windows are fine. How can I right the bad window?
Sometimes in Google Chrome I encounter similar rogue windows. I tame them by right-clicking and choosing 'show as tab'.
Edit: I want to keep the window open, I just want to reintegrate it into society.