In bug 1628743 <https://bugzilla.mozilla.org/show_bug.cgi?id=1628743> I plan to enable ETP cookie purging by default on Nightly only, affecting both desktop and mobile.
In short, ETP cookie purging is an attempt to protect against first-party redirect (“bounce”) trackers by periodically clearing their site data. To that effect, any site that is on our list of known trackers and did not receive user interaction (including scrolling) in the last 30 days will have all its cookies and other storage cleared during idle daily. A similar technique is already being shipped in Safari as part of ITP <https://webkit.org/blog/8311/intelligent-tracking-prevention-2-0/>. Standardization of such a mechanism is currently being discussed in the Privacy CG <https://webkit.org/blog/8311/intelligent-tracking-prevention-2-0/>. Our implementation is likely to be altered based on the outcome of that discussion. Our plan is to let this bake for at least the 77 cycle and evaluate for bugs and potential breakage before we make a decision to ship in 78, or later. The preference to control this is privacy.purge_trackers.enabled. Should you notice strange website behavior on Nightly that revolves around state management (e.g. getting logged out of a site too frequently), please file a bug blocking bug 1594226 <https://bugzilla.mozilla.org/show_bug.cgi?id=1594226>. We’re happy to investigate further. Please let me know if you have any questions or concerns. Thanks, Johann _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
