Is there a Firefox addon to check if a tab is already opened?
For example, I have a lot of tabs usually and I open several a time as I read a page. Is there a way to say for example if I've already opened
www.stackoverflow.com in a tab, and I click on a link to
www.stackoverflow.com, it will jump me to that open tab instead of creating another tab with Stack Overflow?
Or, I've seen there are hierarchical tab views for Firefox, does such exist for Chrome?