Post Syndicated from original https://lwn.net/Articles/897850/

Mozilla has announced
the enabling of its “total cookie protection” feature in all versions of
the Firefox browser.

Total Cookie Protection works by creating a separate “cookie jar”
for each website you visit. Instead of allowing trackers to link up
your behavior on multiple sites, they just get to see behavior on
individual sites. Any time a website, or third-party content
embedded in a website, deposits a cookie in your browser, that
cookie is confined to the cookie jar assigned to only that
website. No other websites can reach into the cookie jars that
don’t belong to them and find out what the other websites’ cookies
know about you.