I noticed in my browser console that I am receiving warnings about cookies associated with the SessionLength analytics. This is on Mozilla Firefox version 91.0 while I'm signed into my WMF account on English Wikipedia. Not sure how long I'll be in the group that's in sessionlength tracking but I'm happy to do any other diagnostics that would be helpful.
Examples:
Cookie “enwikiwmE-sessionTickLastTickTime” will be soon rejected because it has the “SameSite” attribute set to “None” or an invalid value, without the “secure” attribute. To know more about the “SameSite“ attribute, read https://developer.mozilla.org/docs/Web/HTTP/Headers/Set-Cookie/SameSite inject.js:1550:27 Cookie “enwikiwmE-sessionTickTickCount” will be soon rejected because it has the “SameSite” attribute set to “None” or an invalid value, without the “secure” attribute. To know more about the “SameSite“ attribute, read https://developer.mozilla.org/docs/Web/HTTP/Headers/Set-Cookie/SameSite inject.js:1550:27 Cookie “enwikiel-sessionId” will be soon rejected because it has the “SameSite” attribute set to “None” or an invalid value, without the “secure” attribute. To know more about the “SameSite“ attribute, read https://developer.mozilla.org/docs/Web/HTTP/Headers/Set-Cookie/SameSite inject.js:1550:27