Re:Twitter preconnects to the wrong domains
by nyanpasu64 on Tuesday October 27, 2020 @11:53AM
(#24908630)
You can stop the error by clearing Twitter cookies.
Or as @miffe said, "Go to about:serviceworkers and ctrl-f twitter and remove every instance. That will fix it."
I'm not sure whether it's because I've setup FF containers to open all twitter.com links in a separate container.