Nightly builds of Firefox, which will form the basis of the release of Firefox 6 on June 114, have a setting to automatically close pop-up dialogs shown on sites to confirm that identifiers can be stored in Cookies in accordance with the requirements for the protection of personal data in the European Union (GDPR) . Because these pop-up banners are distracting, obstruct content, and take the user time to close, the Firefox developers decided to build in the browser the ability to automatically reject the request.
To enable the function of automatic response to requests in the settings in the Security and privacy section (about:preferences#privacy), a new section "Cookie Banner Reduction" has appeared. Currently, the section only has a "Reduce Cookie Banners" flag, when selected, Firefox will begin, on behalf of the user, to reject requests to store identifiers in Cookies for a predefined list of sites.
For finer tuning, about:config provides the "cookiebanners.service.mode" and "cookiebanners.service.mode.privateBrowsing" parameters, writing 0 to which disables auto-closing of Cookie banners; 1 - in all cases, rejects the request for permissions and ignores banners that allow only consent; 2 - when possible, rejects the request for permissions, and when it is impossible to reject, agrees to the storage of the Cookie. Unlike a similar mode provided in the Brave browser and in ad blockers, Firefox does not hide the block, but automates the user's action with it. There are two banner processing modes available - mouse click simulation (cookiebanners.bannerClicking.enabled) and Cookie substitution with the flag of the selected mode (cookiebanners.cookieInjector.enabled).
Source: opennet.ru