For those of you who have been pining for a working 64-bit version of MiddleClickClose, your patience is about to be rewarded. A fellow called Tom has taken the MCC code, gotten it working with 64-bit Safari and has moved it to its new home. I am no longer maintaining the code, since I don’t use Safari, so from now on, here’s where you should go for MCC:
github.com/Kabal/MiddleClickClose
There you will find all the source code so you can see how it works, or make changes yourself. If you are only interested in using it, you can get a binary bundle here. I haven’t tried it, but Tom assures me that it works. 
Thanks Tom-of-no-last-name for taking over the code.
