Settings -> Privacy & Security -> Custom tracking protection -> turn off Cookies

or

Click the Shield icon in the URL bar and turn off the Enhanced Tracking Protection for that site.

@TyDraniu

Thank you for your response. Unfortunately I have already tried both options and I am still getting the same error.

Does this work properly in the Release (92) or Beta/DE (93) version ?

Did you try to disable all check boxes in the Enhanced Tracking Protection custom settings (i.e. allow all cookies) ?

Are you possibly using Private Browsing mode ?

Any relevant-looking messages in the Web Console ?

• https://developer.mozilla.org/en-US/docs/Tools/Web_Console

@cor-el

Thank you for you response.

"Does this work properly in the Release (92) or Beta/DE (93) version ?" I have not tried to repeat the issue in the Release (92) or Beta/DE (93) versions. I only use Nightly, but I will give those versions a try.

"Did you try to disable all check boxes in the Enhanced Tracking Protection custom settings (i.e. allow all cookies) ?" I did try this step, and as with all other steps, I deleted cookies, cache, and history, restarted Nightly and still met the same issue.

"Are you possibly using Private Browsing mode ?" I am not using Private Browsing mode. Although, as a troubleshooting step, I tried to login to my course page in Private Browsing mode and still had the same issue.

"Any relevant-looking messages in the Web Console ?" Honestly, I'm not advanced enough at this point to try to use Web Console.

Keep in mind that the Nightly builds are aimed at experienced testers that know how to deal with issues and if necessary can fallback to the current release (or beta) version. It looks that at the moment updates are halted on Nightly (? due to reported crashes) as I haven't seen an update today.

@cor-el

To follow up on your previous question:

"Does this work properly in the Release (92) or Beta/DE (93) version ?"

I tested Release (92) and Beta/DE (93) versions, new installations and it works as intended without having to change Enhanced Tracking Protection settings.

It must be my Nightly installation which has several add-ons and is customized to some degree with CSS.

You can try Nightly with a new profile.

My Firefox just updated to 96.0.2 and I am having the same issue. I do not know what Release (92) or Beta/DE (93) or Nightly versions are, and my update settings are set to automatic. I tried the suggestions in the first post and, like the OP, had no success. I hope someone can help.

Same issue here. Still running 96.0.1 (64-bit) but the message I get is "It seems your browser is blocking 3rd party session cookies which are required for the Kaltura application. To resolve this issue, please update your settings to allow 3rd party cookies." I tired the suggestions described in the previous two posts with no success. Hopefully, someone can help.

There is a change in Firefox 96 related to cookies and insecure sites.

• https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Releases/96#http

See also:

• /questions/1363998 blocked 3rd party cookies

As a workaround for now you can modify this pref on the about:config page to revert this change.

• about:config => network.cookie.sameSite.laxByDefault = false

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.

• https://support.mozilla.org/en-US/kb/about-config-editor-firefox

• https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Set-Cookie/SameSite