CookieBlockedByPermission=Request to access cookies or storage on “X” was blocked because of custom cookie permission. (Firefox)
IF CHROME OR OTHER BROWSERS ALSO SUPPORT THE SAME OR SIMILAR FUNCTIONALITY BUT WITH DIFFERENT ERROR MESSAGES, IT WOULD BE NICE TO ALSO LIST THOSE HERE
What went wrong?
A request to access cookies or storage was blocked because there's a custom user-defined permission set.
The permission can be changed or removed by going to Preferences -> Content Blocking -> Cookies and Site Data and clicking on the "Manage Permissions" button.