Adobe Acrobat Browser Plugin - Disabled!
Freaking annoying feature of Adobe Acrobat 7 is the new in-browser PDF viewer that gets installed and activated by default. I finally got annoyed enough to ask google, and according to this you just delete the viewer plugin in /Library/Internet Plug-Ins (which is what I did). Alternately, you can also apparently just turn it off in the Acrobat preferences under “Internet.”
Finally, I no longer have to right click PDFs to save them.