''Possibility to duplicate a tab'' Here are two built-in features # Ctr+drag the tab''' # Use Ctrl+click on the Back or Forward toolbar button to bring up the page one back or one forward into a new tab<br>http://dmcritchie.mvps.org/firefox/keyboard.htm There is also a great extension: '''Multiple Tab Handler''' Right-click on the tab to bring up the tab context menu then choose "Duplicate Tab". It provides lots of features for handling multiple tabs: pinning a selection of tabs (app-tabs), pasting titles & urls in various formats. Closing selected tabs, or all tabs to the right/left. Closing tabs to the right is especially useful if using app-tabs. '''Multiple Tab handler''' ( 74.8KB download) see my usage notes * https://addons.mozilla.org/firefox/addon/multiple-tab-handler/ * http://dmcritchie.mvps.org/firefox/multiple_tab_handler.txt If you want to test out the functionality of anything involving Tab use this test page. (the strange name is derived from my keyword shortcut to the page is "_") * http://dmcritchie.mvps.org/firefox/tab_capacity/001_with_underscore.htm If this solves your problem please mark as solved, once sure. ---- For additional information on tabbed usage see: * Tabbed Browsing in Firefox<br>http://dmcritchie.mvps.org/firefox/tabs.htm#duplicate