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I guess I'm looking for a "unique tab" extension that would behave as follows:

  1. I open a new tab and type in ""
  2. It looks for an already open tab with that url
  3. If found, it takes me to that tab and closes the current one.

It should also work the same if I follow a link, like to google calendar - to find the existing calendar tab, rather than a new one.

Basically, I find it easier and faster to open a new tab rather than find an existing one. Which means I have like 4 calendar tabs open. Which means every alarm goes off 4 times...

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closed as off-topic by Ben N, fixer1234, DavidPostill, mdpc, Wes Sayeed Mar 30 at 1:37

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Questions seeking product, service, or learning material recommendations are off-topic because they become outdated quickly and attract opinion-based answers. Instead, describe your situation and the specific problem you're trying to solve. Share your research. Here are a few suggestions on how to properly ask this type of question." – Ben N, fixer1234, DavidPostill, mdpc, Wes Sayeed
If this question can be reworded to fit the rules in the help center, please edit the question.

up vote 5 down vote accepted

EDIT Previously linked extension doesn't work. Only One, however appears to work flawlessly.

This should do the trick for you, though the logic is a bit differet in that it closes the OLD tab and opens the NEW tab. Same effect in the end though.

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Perfect! (It does behave the way I described - closes the new tab, redirects to the old one). You have to tell it each site that should be unique. – Steve Bennett Feb 2 '11 at 8:36
this is far from perfect. you have to electively say for each tab that you want it to be a singleton - and plus if you have multiple windows open it isn't able to jump to another window. it just closes the tab as you type the url. it this not technically possible? someone needs to solve this problem – Simon Apr 19 '14 at 23:51

Based on review here -

  1. Duplicate Tab - Simple, effective and fast

  2. Clutter Free - Same with Whitelisting option. #recommended

  3. Unique Tabs - Only notification, no redirection

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Fast Unique Tab is what you're looking for.

The other extensions mentioned here are vastly outdated and some simply don't work.

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I have found Unique Tab, which works without telling each single instance that you want it to be unique.

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