Hack your profile photo : Want to juice up your profile photo? Check out AllFacebook.com's "5 Creative Ways To Hack Your Facebook Profile Photo." You'll learn how to maximize your picture size to 200 pixels wide by 600 pixels high, and how to create some neat effects like making it look like you're hanging off your profile Wall.
In my tests, the specifications for this effect took some careful tweaking but the payoff was worth it. If you're handy with a photo editor this will be easy for you. If you don’t have Photoshop, you're going to need to get yourself a photo editing program to take advantage of this hack. There are pleany of good free photo editing programs to get the job done such as such as Paint.Net . You'll find more free photo editing software at PC World's Download section.
Put Facebook Chat in your browser sidebar: Is Facebook your main IM tool? You can place it in your browser's sidebar. For my tests I used Firefox, but this also works in Opera. In Firefox just go to Bookmarks -> Organize Bookmarks and click on Bookmarks Toolbar. Select New Bookmark, and name it Facebook Chat. Then paste in this URL: http://www.facebook.com/presence/popout.php. Make sure you've selected "Load this bookmark in the sidebar" and hit Save. Now you're ready to go. Sorry IE fans -- this is not for you; however, you can paste the URL into a new browser tab if you like.
Get back the old Facebook look (more or less): Ever feel constrained by the Facebook layout and look? You can actually change the look of your Facebook page with some tinkering and a little help from a Firefox add-on called Greasemonkey that allows you to use Java Scripts to change the Facebook look. The only catch is the new look is something only you can see -- your Facebook friends see the same old Facebook page. Once you’ve added Greasemonkey to Facebook, visit Greasemonkey’s companion site UserScripts.org and browse dozens of layout options for your Facebook page. Click "install" on the new Facebook layout you want and let Greasemonkey take care of the rest.
That being said, here are a few of my favorites:
Remove Facebook Clutter: This is a close approximation of Facebook's previous look and feel. This hides the filters on the left side of the "stream" and the "highlights" section, and takes away the rounded corners on profile photos.
Facebook Color Changer: Pick a color scheme and change your FB colors. This script used to let you change the Facebook icon on the top left of the screen as well, and the developer promises this feature will be back.
Facebook Twitter Style: Have you heard how Twitter supposedly inspires Facebook’s new look and feel? Why not take this concept to its logical conclusion and view your Facebook homepage as if it really were Twitter?