Firefox cookie protection working?
I'm using the latest Firefox 101.0.1 (64-bit) in Windows 10 21H2 (64-bit). I've got Enhanced Tracking Protection set to Strict so the new Total Cookie Protection should be working. To test this I went to https://www.grc.com/cookies/forensics.htm but it shows that 3rd party cookies aren't being isolated. Is this a Firefox issue or is this a problem with the website? Is there another website or way to test the new Firefox Total Cookie Protection?
I am using Firefox 102.0.1 and am having a similar problem. I delete all history, including cookies when I close a browser session but have listed certain sites in the "manage exceptions" link under settings>privacy and security>cookies and site data. I have been able to log into the URLs listed there without requiring dual-factor authentication. This seems to have stopped for some sites, including google.com since I received an update to Firefox. After doing some research I found that there are add-ons that can protect these cookies. I installed Quick Cookie Manager, listed as a recommended add-on, and entered two of my problem URLs in to protect them. I am still having to respond to a request for further authentication because my computer is no longer recognized by these sites.
I don't no what changed, but today the cookies are protected and I don't need to add another authentication factor.