Greasemonkey (Chrome/Firefox/Opera/Safari/Android): The Windows download world is in a sad state. Lots of download sites, including popular ones like Sourceforge and Adobe, bundle extra crapware with their installers. AntiAdware is a simple script that blocks these, so you don't have to worry about getting tricked.
Tagged With user scripts
Chrome/Firefox with Greasemonkey: If you like to watch YouTube videos without all the clutter of the side bars, userscript Resize YouTube Player can help by automatically stretching the video you're watching to fill the entire browser window. This script also automatically changes the video's resolution (where available) to a higher quality, depending on how large your window is.
Chrome/Firefox/Safari (User Script): If you're like me, you probably avoid most YouTube links because you don't know what's on the other end, and you don't want to waste time finding out. User script YouTube Link Title saves you from NSFW videos, rickrolls and things that just aren't worth your time by warning you what's on the other side.
We all have a few favourite websites, even when they're not perfect. You don't necessarily have to live with those imperfections, however, as userscripts and userstyles provide you with the option to customise just about anything. Here's a look at how they work, how to use them, and even how to get started on making your own.