Removes sponsored and suggested content. Release your wall from imposed content. Works for Czech, English and French.

https://addons.mozilla.org/cs/firefox/addon/fb-getridad/

https://chrome.google.com/webstore/detail/fb-getridad/pohajcgaoeefgbfinebfpecboikikegp

Or use the development version:

• Download and unzip this very folder
• Menu / More Tools / Extensions
• Toggle Developer mode in the upper corner
• Load unpacked / search for the downloaded folder

Activate by appending an URL parameter: ?debug=extension. Then, in the developer console, you see all matched elements along with the reason for being matched. (In verbose console, it outputs the non-matched elements too.)