European Union Justice Commissioner Didier Reynders recently told German newspaper 'Welt am Sonntag' that the European Commission is aware of how annoying cookie consent banners have become...
Unfortunately by sending DNT you are merely suggesting to the server that you wish to not be tracked. There's no requirement for the server to actually care about you at all.
Now, if DNT were actually legally binding though - that would indeed be very cool.
Yes and this is what they should have legislated. I don't know if lobbyists or stupidity got in the way, or both. But the fact that this news comes now so close to Google Chrome abolishing cookies for its new "privacy" feature is suspicious timing.
Yes, but it often doesn't work and even when it does the site is unusable while it works, which for some particularly awful banners is several minutes. The situation is worse on mobile where most people have a browser that you can't install add-ons to (and I'm not sure if that one works in firefox mobile anyway)
Your browser can not save third party cookies, but it might break some sites. Some advertising situations allow the use of first-party cookies, and blocking first-party cookies will break most sites.
In either case you will still have to fill out the consent form, and if the consent is stored in the kind of storage you block, then you will have to fill it out every single time you visit.
The DuckDuckGo browser has this baked in as 'Cookie Pop-up Protection'. It doesn't quite get rid of them all, and doesn't let you set a default for what you want (it'll basically pick the most privacy-forward option) but I've found it works pretty well.