The Mozilla Foundation he said that it intends to apply blocking to all ad trackers in future versions of Firefox by default. 
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 remove the tracking that can be done between the pages, and then proceed with the exclusion of cryptomining which also slows the performance of the computer.
“Some pages continue to want user data in exchange for content,” Mozilla's Nick Nguyen said in a blog post, “but now they're going to 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 started testing these features in Firefox Nightly, a pre-version of Firefox which is updated every night. This version of Firefox currently includes a feature that prevents ad trackers from slowing down page loading. The Mozilla Foundation plans to test this feature in September, and if it goes well it will start blocking ad trackers by default in Firefox 63.
Tip: For those who are interested in new versions of Firefox Nightly they can find them here.
Firefox Nightly also precludes site-cooked tracking through cookies and is also planning to conduct a study on this topic. 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 cryptomining.
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