Mozilla has revised the way the latest build of the Firefox browser handles HTTP cookies to prevent third-parties from using them to track people online, as part of improvements in build 86 of the code.
HTTP cookies are files stored by web browsers to save state – e.g. is the user logged in? – that get set by code running on the visited website. Some such code, known as tracking scripts or trackers, may point to third-party servers, like those run by ad tech companies.
The third-party cookies placed by these scripts can be read on other websites that also load tracking code and are often used to follow people from website to website in order to build interest profiles for behavioral ad targeting. At least that's the case for those who haven't already limited the reach of third-party cookies through privacy-focused browsers like Brave, Firefox, and Safa ..
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