not something to recommend Rated 2 out of 5 stars

Unfortunately this extension is absolutely nothing I could recommend. First of all, why it has size of over 1 MB? This is very much for an extension which does not do much. I cant reply question myself, cause I did not inspect the xpi and already uninstalled...
Second, the user-interface comes with unneccesarry large bitmap graphic which just looks strange. I would say "keep it simple and professional without any extra graphics, which are always a question of tastes".
Third, it did not correctly work with Walnut2 theme. Was no button to close the extensions window and initially poped up with minimal height and had to enlarge manually.
Fourth, the UI just does nothing for me unfortunately. I wanted to see any snapshot of a web-page which definitely has archive.org mirrors, but I got no result...
There are other extensions which do the job of this addon much more sophisticated and less overloaded. Or just try this slim Greasemonkey/Scriptish script: http://userscripts.org/scripts/show/100613