To illustrate the issue, think opening new tabs from Reddit's homepage for the posts that you find interesting and then Safari sometimes will just close the last tab you opened as you keep opening new tabs.

Also, it will re-open tabs. For example, you Googled something and opened 1-2 of the results then closed the Google tab and switch to one of the new tabs and suddenly the Google tab will come back.

Lastly, sometimes when you click on a link and navigate to another page in the same site, Safari will take you back. Thin clicking on someones profile on Twitter and just at the moment that the page loaded it will go back as if you clicked the back button.

All this happens only when using Tab Groups. I regularly have 3-5 tab groups with 20-50 tabs opened, I know it's not ideal but that's how I do it.

I actually filed a bug report through the Feedback assistant but so far no response. I also don't see other people complaining about it, so maybe there's a solution?

I don't use too many add-ons, I just have AdGuard enabled as an adblocker.

Any idea how to solve this unwanted behavior in Safari?

  • I also have this issue and AdGuard. Have you tried disabling AdGuard? Aug 2 at 14:16

2 Answers 2


This behavior seems to be caused by iCloud syncing problems. Specifically, the automatic sync process is interacting poorly with tab groups causing this pain.

Current workaround would be disabling iCloud syncing for Safari.

  1. Go to System Preferences
  2. Choose Apple ID
  3. Untick Safari

You’ll have to re-enable sync once you are done browsing to have your changes propagate until Apple fixes this.

  • 1
    Not sure what is worse: not using iCloud syncing or not using tab groups.
    – nohillside
    Jun 22 at 9:00
  • 1
    @nohillside Tab groups, considering Apple is breaking syncing with every other update anyway.
    – Andreas
    Jul 31 at 14:00

Good news everybody, It appears that the bug is fixed with macOS 12.5 as Apple specifically put it in the release notes!

macOS Monterey 12.5 includes enhancements, bug fixes and security updates.

  • TV app adds the option to restart a live sports game already in-progress and pause, rewind, or fast-forward
  • Fixes an issue in Safari where a tab may revert back to a previous page
  • Not in my experience, unfortunately
    – sage2k
    Jul 24 at 14:08
  • doesn't work for me either, just caught this nasty bug again after the update :( this is ridiculous. I can't trust my browser.
    – Dobby007
    Jul 26 at 7:29
  • 1
    I assume you refer to the second item in the release note. It doesn't refer to tab groups though, also the other comments here imply that it has not been fixed.
    – nohillside
    Jul 31 at 14:25
  • It looks like Apple might have not fixed it after all and they are referring to another bug in the release notes. That's unfortunate.
    – mrtksn
    Aug 1 at 7:37

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