In the screenshot below you can see Facebook Chat Bully in action eliminating the offline buddies and profile pictures.


After you have this extension installed, you will need to navigate to your extension page to turn the specific features of Facebook Chat Bully. in whichever browser you’re using from the extension’s options. Below you will see a screenshot of the Chrome extension options.
The Firefox version is practically the same but does have a few extra features like hide the status icon that shows if your friend is online, idle, or offline. You can see the Firefox option panel below.
Facebook Chat Bully is free and is something I consider a must-have for Facebook users, grab it for Chrome or Firefox via this link!