I guess I'm looking for a "unique tab" extension that would behave as follows:
- I open a new tab and type in "mail.google.com"
- It looks for an already open tab with that url
- 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...