Software :: Flash Player Doesn't Support 64-bit?

So after a little while of trying to get flash player to work in firefox on Slackware, I finally figured something out.

It took me a little bit to figure out where the firefox plugins folder was, because everything I read said in "/usr/lib/mozilla/plugins/" Well in "/usr/lib/" there was about 6 or 7 folders, nothing else. I finally realized everything was in /usr/lib64.

Now my second problem, the flash player plugin I downloaded directly from Adobe didn't work. Well a few searches fixed this, and I found a link to the 64-bit plugin at SlackBuild [url] Now I have a couple of questions. First off, Is there any resource that would help me find out exactly what the security risks that SlackBuild claims exist in the x86_64 edition of flashplayer are, so that I can take proper precautions?

Adobe says that they don't currently support 64-bit and they say you can just use a 32-bit browser. I am a bit of a newbie when it comes to 64-bit and 32-bit architectures, so I would just like to read about the advantages of using a 64-bit browser over a 32-bit, and it would help me if anyone could direct me to a website or resource all about the 64-bit and 32-bit architecture stuff.

And in conclusion: The point in me posting this is I would like to decide whether I should continue using the 64-bit firefox or switch to a 32-bit version so I can use the official version of flashplayer. I have a habit of generally preferring the default installed applications because I feel they are typically chosen for the best compatibility, and otherwise I don't feel like asking what application I should use for each and every field of applications.

For now I'll install the 32-bit version and see if I notice any differences.