MacOS – How to put a tab detached from fullscreen Safari back into it

macosmojavesafari

  • Start Safari
  • full-screen Safari
  • open at least 2 tabs
  • click and drag one of them away from the tab bar
  • release left-click
  • it creates a new full-screen Safari instance, with that tab as the only tab

Now, how do I take that tab, and put it back into the other Safari window?

Best Answer

  • Make two tabs in one window, other free tab can now be brought in.
  • Window Menu > Merge all windows.
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