Yesterday I got crazy with a very special behavior of two of our iMacs (running with the latest Yosemite).

If you open a browser Tab in Safari or Chrome on the first iMac, it automatically opens in the task bar of the second one (Screenshot).

Remote tab that opens on the second Mac

I disabled the Safari Cloud-Tabs Service in the iCloud, but the sharing keeps on going (still after rebooting, activating and deactivating again).

Funnily enough, it doesn't matter which browser you are using. Opening a tab in Safari displays it with a "chrome remote" icon on the other computer.

Has one of you ever seen this feature? Both Macs are using the same iCloud-Address.

Btw: There is no Chrome "iCloud Tabs" Extension installed, but like I said this problem happens on Safari too.

  • Automatic opening isn't a feature of iCloud tab syncing. Do you have any extensions installed?
    – nohillside
    Commented Mar 17, 2015 at 8:00
  • @patrix No both macs got clean installed a few months ago. The only Software installed is Adobes Creative Cloud.
    – Jonas
    Commented Mar 17, 2015 at 8:07

1 Answer 1


If you really mean by automatically opens in task bar as a Browser icon displays a the little icon on top of it in the Dock (Handoff app icon in Dock ), and when you click it it opens the same page you are viewing on the other Mac.

then this is nothing to do with iCloud.

This a feature called Hand off. Have a read here

When your Mac computers and iOS devices are within Bluetooth range of each other (about 33 feet or 10 meters), they can automatically “hand off” what you’re doing from one device to another. For example, you can start writing an email in Mail on your iPhone, then instantly pick up where you left off in Mail on your Mac.

Handoff works with several apps that come with OS X Yosemite and iOS 8: Calendar, Contacts, Mail, Maps, Messages, Notes, Phone (iOS only), Reminders, and Safari. It also works with Keynote v6.5, Numbers v3.5, and Pages v5.5 for Mac, and Keynote, Numbers, and Pages v2.5 for iOS. Third-party apps may also work with Handoff.

  • Thanky you very much!!! I didn't know that such a feature exists, but I also don't understand why there isn't any hint in the iCloud settings tab, because handoff works via Bluetooth and the iCloud devices.
    – Jonas
    Commented Mar 17, 2015 at 8:43
  • look in General preferences at the bottom.
    – markhunte
    Commented Mar 17, 2015 at 9:16

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