The Mozilla Foundation he said that it plans to block all ad trackers in future versions of Firefox in advancechoice. 
The new settings are designed to be implemented gradually, starting with an initiative that focuses on blocking trackers that slow down page loading.
After that, the Mozilla Foundation plans to catslowon the tracking that can be done between pages, and then it will proceed with blocking cryptomining which also slows down the performance of the computer.
“Some pages still want user data in exchange for content,” Mozilla's Nick Nguyen said in a blog post, “but now they'll have to ask for it. She is a positive change for people who until now had no idea what they were being asked to do.”
Firefox has already begun to test these features at Firefox Nightly, a pre-release Firefox updated every night. This version of Firefox currently includes a feature that prevents ad trackers slowing down the loading of pages. The Mozilla Foundation is planning to test this feature in September, and if it does, it will start blocking ad trackers by default on Firefox 63.
Tip: For those who are interested in new versions of Firefox Nightly they can find them here.
Firefox Nightly also already blocks cross-site tracking via cookies and plans to do so as well study for this subject. The goal is to make this setting available in Firefox 65.
Finally, the Mozilla Foundation said that future versions of Firefox will block by default “deceptive practices that collect invisibly identifiable information users or that degrade the user experience”, with techniques such as fingerprinting or hidden cryptomining.
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