How is it not working? Is it not installing, not running, etc.? Try contacting the developer at https://addons.mozilla.org/en-US/firefox/user/3026617/

Thank you. I did install correctly (initially I can go wrong) and I made ​​my first experience. I will repeat to see benefits. Note for all: need to click on + Add to Firefox !

Collusion doesn't work for me either. I tried reinstalling, restarting, going to Yahoo and clicking on ads, no graphic ever came up. I doubt my ad blacking stuff is that good. What gives?

I did install correctly (initially I can go wrong) and I made ​​my first experience. I will repeat to see benefits. Note for all: need to click on + Add to Firefox ! Try and success !