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:
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.)