As the title says really. I am using Jellyfin on a windows laptop and Firefox as my default browser.

When I try to get my media to stream to my chromecast dongle it keeps showing as Google cast unsupported. I know there is no problem with the laptop or the dongle, as using plex I am able to stream fine. I don’t seem to be able to find any info online how to do this, can someone help clear this up for me please