Question Firefox third-party cookies

[simmerskool]

Firefox Privacy or: How I Learned to Stop Hardening and Love Strict Tracking Protection

Firefox is popular in online privacy communities because it is a high quality, open source web browser that is extensively configurable. Unfortunately, those...

www.quippd.com

I've been using Edge & Chrome more recently, but also running FF 107.0.1 on win10 21H2. FF security is set to Strict following suggested settings link provided by @oldschool the other day. I then went to GRC (Gibson Research) cookie forensics, and it reports that FF is not blocking third-party cookies, even in Strict mode. Is this correct finding? Both Edge & Chrome passed this "test."

GRC | Cookie Forensics Display

Display of GRC's Visitor Browser Cookies

www.grc.com

 

[silversurfer]

If you want a better "test result", FF users have to tweak on Browser Privacy => Enhanced Tracking Protection => Custom: Block all third-party cookies

 

[simmerskool]

If you want a better "test result", FF users have to tweak on Browser Privacy => Enhanced Tracking Protection => Custom: Block all third-party cookies

View attachment 271143View attachment 271144

yeah, I did try that last night but when you select Custom that disables Strict, and I was not sure exactly what to select or unselect in Custom to be as strict as Strict (if I'm making any sense...)

 

[oldschool]

when you select Custom that disables Strict, and I was not sure exactly what to select or unselect in Custom to be as strict as Strict (if I'm making any sense...)

Custom provides the same protection as Strict, what Mozilla calls Enhanced Tracking Protection, unless you de-select individual options. In earlier FF versions, ETP was only enabled in Strict/Custom, but was later enforced in all modes. The documentation doesn't describe how Strict or Custom differ from Standard, other than "stronger protection but may cause some sites or content to break".

Enhanced Tracking Protection in Firefox for desktop | Firefox Help

Enhanced Tracking Protection in Firefox automatically protects your privacy while you browse.

support.mozilla.org

This explains in more detail:

Firefox Rolls Out Total Cookie Protection By Default To All Users | The Mozilla Blog

Take back your privacy Firefox is rolling out Total Cookie Protection by default to all Firefox users worldwide, making Firefox the most private and secure

blog.mozilla.org

 

[HarborFront]

LW only has Enhanced Tracking Protection and no others so it failed the 3rd-party cookie tests

I set uBO to block 3rd-party/3rd-party frames/3rd-party scripts and now it passed the 3rd-party cookie tests

For FF

I left it on Enhanced Tracking Protection and set uBO to block 3rd-party/3rd-party frames/3rd-party scripts and now it passed the 3rd-party cookie tests

Note:- Need to set blocking 3rd-party/3rd-party frames/3rd-party scripts in uBO to RED color

 

[franz]

If you want a better "test result", FF users have to tweak on Browser Privacy => Enhanced Tracking Protection => Custom: Block all third-party cookies

View attachment 271143View attachment 271144

Worked like a dream, thank you

 

[simmerskool]

Custom provides the same protection as Strict, what Mozilla calls Enhanced Tracking Protection, unless you de-select individual options. In earlier FF versions, ETP was only enabled in Strict/Custom, but was later enforced in all modes. The documentation doesn't describe how Strict or Custom differ from Standard, other than "stronger protection but may cause some sites or content to break".

Enhanced Tracking Protection in Firefox for desktop | Firefox Help

Enhanced Tracking Protection in Firefox automatically protects your privacy while you browse.

support.mozilla.org

This explains in more detail:

Firefox Rolls Out Total Cookie Protection By Default To All Users | The Mozilla Blog

Take back your privacy Firefox is rolling out Total Cookie Protection by default to all Firefox users worldwide, making Firefox the most private and secure

blog.mozilla.org

Thanks for the explanation. I'll play with FF later tonight.

Edit: my FF is now blocking 3d party cookies, thank y'all