MacOS Catalina 10.15.7

Sometimes Safari (14.0.1) closes all open tabs after playing a YouTube video (most often in full-screen mode).

My typical scenario:

  1. I have several opened tabs
  2. I watch a youtube video in fullscreen mode in a tab
  3. I close the tab using Cmd-W
  4. I find Safari in the dock without any opened tabs

Is it a well-known bug or my local issue? Any ideas on how to fix/workaround it?


1 Answer 1


I follow to advice from the link and determine that Grammarly addon crash my Safri.

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