I don't know why, but it does not work at any website I am using. Probably an issue with existing security addons? It just doesn't work at all.

Cool !!!
Thanks very much !

Only had this extension a hot second, and I actually added and removed a couple of other ones thinking they weren't working - when it looks like Nature.com has just managed to block these (confirmed it worked on Cell). I'm glad I found this, anyway, because it has the clearest, nicest interface I've seen! Both the simple toggles of what cookies you will accept, with explanations, and the fact you can add your own rule lists. Amazing work, thank you so much.

Gets better every day. Really cool project. Keep up the great work! ^^

While this works great on chrome, it does not really work in firefox. Mainly because the code states chrome.runtime. for the firefox version - should be browser.runtime.