Continuing the discussion from Abolish irrelevant to privacy requirements : [image] Abolish irrelevant to privacy requirements Firefox would need to be delisted since it does not meet the Must block third-party cookies by default requirement. Even arkenfox hardening would not make it meet this re…

We can still give this some time if anyone has last minute objections, but in the meantime I’ll mark this as approved for a PR to be created because I can’t imagine any reason we’d not want to make this change. [image] any1: but this is also broken in Firefox when a site is added to the excepti…

I vote for changing the criteria to “prevents cookies from accessing data unrelated to their site.” Analytical data has valid uses and shouldn’t be seen as evil, especially if you’re intentionally visiting a site. I also prefer this option as it leaves the criteria open ended in case any new methods…

IMO, blocking all third-party cookies shouldn’t be mandatory when partitioning works, but this is also broken in Firefox when a site is added to the exceptions. :smiling_face_with_tear: [image] Mention how per-site exceptions affect Firefox's Total Cookie Protection toolboxS…

Something to be aware of, is that some browsers use heuristics to make exceptions for state partitioning, which can allow unpartitioned access. This is also the case for Firefox in its default state. See State Partitioning - Privacy on the web | MDN

[image] Shampoo: Analytical data has valid uses and shouldn’t be seen as evil I don’t think partitioning third-party cookies affects this use-case in the first place, and blocking third-party cookies would only have minimal impact on analytics (maybe they can’t determine whether the same visi…

Curiously, Mullvad Browser differs from Mozilla’s privacy.restrict3rdpartystorage.heuristic defaults here, maybe because they are on 140 ESR. @ruihildt I wonder if you or Tor have considered not using ESR releases in Mullvad Browser, with the benefit for Tor Browser being that MB could serve as a p…

[image] jonah: FPI FPI is no longer maintained outside of Tor Browser. [image] jonah: I wonder if you or Tor have considered not using ESR releases in Mullvad Browser, with the benefit for Tor Browser being that MB could serve as a place to validate new features before the next TB releas…

[image] any1: FPI is no longer maintained outside of Tor Browser. Well not literal FPI that only affected known trackers, but I mean you’re essentially disabling all the features that make dFPI dynamic if you disable webcompat. [image] any1: There have been Tor/Mullvad alpha releases bas…

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Desktop browser tracking cookies criteria question

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Mention how per-site exceptions affect Firefox's Total Cookie Protection Site Development approved	15	949	March 13, 2026
Does "Total Cookie Protection" is important even I clean cookies? Questions browsers	3	435	July 10, 2024
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Firefox Enhanced Tracking Protection "Fix major site issues" option Questions please-eli5	5	635	April 23, 2026
Abolish irrelevant to privacy requirements Site Development	14	656	March 12, 2026

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