Slows down the opening of new windows Rated 4 out of 5 stars

Could someone tell me if after uninstalling, reinstalling this add-on brings everything back exactly the way it was (saved tabs, history, etc)? I wanted to uninstall/reinstall to see if TMT is the responsible for Firefox taking so much time to start-up. Either starting Firefox or opening new windows, it's the same thing, the toolbar on top grows and the program freezes for a while. This always makes me use another browser to navigate on sites which show images in pop-up windows. It would be smart to disable TMT in pop up windows but I don't see that option. It seems to me that TMT ist the responsible for this 15-20s delay when opening new windows.

This review is for a previous version of the add-on (1.3.7.1-signed).