Message
Firefox:
CookieBlockedForeign=Request to access cookies or storage on “X” was blocked because we are blocking all third-party storage access requests and content blocking is enabled.
What went wrong?
A request to access cookies or storage was blocked because it came from a third-party (a different origin) and content blocking is enabled.
The permission can be changed or removed by:
- Going to Preferences > Content Blocking and either
- adding an exception with the Manage Exceptions… button
- choosing the Custom Content Blocking and unchecking the Cookies checkbox
If the resource that is being blocked doesn't need authentication, you can fix the warning message by adding a crossorigin="anonymous" attribute to the relevant element.