Firefox 85, scheduled to be released in January 2021, will include an anti-tracking feature named Network Partitioning to improve user privacy on the internet.
While Firefox is not the first web browser to support network partitioning, it is a significant improvement as it eliminates tracking techniques dependent on shared cache functionality.
Network Partitioning will enable Firefox to save resources like the favicons, cache, CSS files, images, etc., on a per-website basis, in the same pool. This makes it harder for third-parties like ad and web analytics companies to track users as they won’t be able to probe for the presence of data from other sites in this shared pool.
To Read More: ZDNet