Let's face it: unless you're an advertiser, getting a page full of ads every time you visit a web page can be a pain in the neck. Along with the general irritation of all that flashing, bouncing stuff, your system's performance takes a hit with all the extra bandwidth needed to download all those images, movies, etc. to your computer. And you're probably not going to buy that stuff anyway.
There are plugins and add-ons for many browsers that help filter this stuff out, but each time you upgrade to the latest version of Safari or Firefox you have to worry that this junk-blocking capability is going to be broken. GlimmerBlocker takes a different approach.
GlimmerBlocker is a Mac application. It runs under OS X 10.5 and later.