Linux users are sometimes dumbfounded by the severe lack of documentation on a topic. Sometimes, the documentation is copious, but other times, you end up with some obscure "it varies depending on your distribution" over and over when searching for the solution to a problem.
Adobe Flash Player for 64-bit Linux is just such a problem. When you got to the flash download page, Adobe just gives you some VERY generic instructions on how to install the flash plugin for Mozilla's Fire...