Social Fixer for Facebook plugs into your browser & improves the existing Facebook.com web site.
You get to pick which features you want to use:
-Filter your news feed by keyword, author & more
-Tabbed news feed organizes posts by games, apps, etc
-Hide parts of the page you don't want to see
-Don't show posts you've already read
-Auto-switch to the Most Recent news feed
-Automatically Retrieve More Stories
-And ALOT more!
Social Fixer is FREE...but throw the developer a buck when you download it - it's good Karma.