Script Summary: Add link to original image on top of Flickr thumbnails. Now with superior tab behaviour.
Adds a link from any Flickr photo page to the original full size image, if available.
This is a modified and updated version of the excellent script 'Flickr Link Original Images', by Johannes la Poutre.
In Johannes' script, the links always open in new tabs regardless of how you click. The change I made is to make the links behave as normal, so they open in a new tab if and only if you middle/control-click. I have uploaded this version for myself and anyone else who prefers this more natural behaviour.
Tested in both Firefox+Greasemonkey and Google Chrome