hello, i don't think this built into firefox - however you could use an addon like the following to get the functionality: https://addons.mozilla.org/firefox/addon/duplicate-this-tab/

• Ctrl-click or middle-click the Reload button on the location bar to open the current page in a new tab.
• Duplicate a tab with its history by pressing CTRL (Mac: Option) and dragging the tab to a new position on the tab bar.

I sure wish someone could design a browser using the best features of current available browsers. All of the current ones are awful - Firefox probably the worse of any. How difficult can it be to create a duplicate tab?

maggiliz have you read the post reply by cor-el above?

@ Maggiliz; Have you 'really' noticed Firefox since it's last major (interface) update? It was like taking the best things from Opera and migrating into Firefox. Granted there are still some basics we'd all like [personally for us] but just about everybody else has created add-ons you can use that don't take up much room or memory to accommodate for it. If it sucks that bad, go back to I.E.. Sorry, I just hate people who post @#$@ over something no one is making them do.

@philipp, regarding teh 'Duplicate This Tab' add-on:

"This add-on provides the much needed feature [..]" & then the rest of the description doesn't make any sense. xD

Aanyway, like cor-el posted, Ctrl-click on 'Reload' will duplicate a tab. =)