Firefox 2 has a function to restore closed tabs
Right-clicking on the tab will bring up a menu titled "Undo Close Tab" which will allow you to restore the closed tabs to their original state before closing. It is a bit different but it seems to be quite useful.
Note that this function has already been implemented in Opera. Details are as follows.
Firefox 2.0 Gets Undo Close Tab & Scrolling Tabs
For Opera, it is easy to understand with the feeling like the image below, and you can restore the closed tab by choosing "Restore". It is surprisingly convenient.
in Software, Posted by darkhorse_log