You're wrong. From the extension's homepage: "In most cases, [the extension] just blocks or hides cookie related pop-ups. When it's needed for the website to work properly, it will automatically accept the cookie policy for you (sometimes it will accept all and sometimes only necessary cookie categories, depending on what's easier to do). It doesn't delete cookies."

If the add-on does something you don't need, don't use it. Giving a one star review just because you need something else is wrong, because it pretty much does great what it's created for.

As the extension description says: "This addon periodicaly (usually once a year) notifies users about what has been and needs to be done." Read a bit about a product before you install anything, please.

The extension does that only once a year and it's not primarily about raising money. Of course, if you have multiple browsers or profiles you may see it more than once.

Hi Edwin,
1. The website doesn't state that anymore. In most cases, the extension just blocks or hides cookie related pop-ups and doesn't accept anything. When it's needed for the website to work properly, it will automatically accept the cookie policy for you (sometimes it will accept all and sometimes only necessary cookie categories, depending on what's easier to do).
2. The extension is not properly financed. It's a donation based project (a big thanks to all who contributed!) but donations don't cover my time and resources invested. Feel free to change that :)

Not true, it doesn't accept cookies. It mostly blocks or hides cookie related pop-ups. Only when it's needed for the website to work properly, it accepts the cookie policy.

It will work. There are millions of websites, you can't make a bad review because of just one of them :)

Not really true. It was a notification calling to support "I don't care about cookies" development.

There is a built-in way to report problems, please use it next time (metro.co.uk hasn't been reported). It will be fixed!

Whenever you see that message, that means that I've seen the already existing report and checked the website and I really can't see the warning unless I disable the extension.

That is valid for Firefox on Linux, Chrome, Opera and most other browsers. But in Firefox for Windows... that's another story. I have reported it to them but they don't do much, I can't do anything else.

Try switching to Chrome for a while - just for a while :) - and you'll see there are no cookie warnings on those same websites.

The notice is set up to be displayed only once, when the extension gets updated to version 3.0.2. If you see it more than once (in a single browser), there might be a bug in the browser itself. If you can, please send me more info about it. You can also try to uninstall the extension (I guess you've already done that part hihi) and install it again after the browser restart. That may help.

Also, if you have some kind of sandboxing software like Sandboxie, it can cause this kind of problem with addons, you should see the instructions provided by sandboxing software developers.