Middle Click To Go Back 4.1.1-signed
Default actions stay as usual.
You can still "open the link in new tab" or "close tab" with middle-click.
But now middle-click on an empty space:
- on page to go back.
- on tab bar to undo close tab.
** Options dialog is available to customize. **
This add-on is not compatible with your version of Firefox because of the following: