While the question arises about going this extent to customise a website which you view/use, it certainly makes sense for you to choose to view the website the way you want to and with a community contributing, I would ask why not??
Let’s look at a couple of scripts for instance and you can understand the power of this simple addon.
This is amazing! again you would appreciate if you are a Facebook addict (or should I say user??)
It removes all messages posted by applications like quizzes etc written by external application developers onto your homepage. That effectively means removes almost all spam of your Facebook homepage.
To browse a list of all scripts and the famous ones, click here
Click here to install the Greasemonkey addon to your Firefox browser. It works on Firefox 1.5 – 3.5
Once installed, to install scripts like the ones above, go to the script home and click Install button on the top. That should take care of it.
Click here to visit the project home.