Hello

Take a look at https://connect.mozilla.org/t5/discussions/hulu-broke-won-t-play-video-reboot-did-not-fix-grrr-stop-udating/m-p/64546/highlight/true#M22757

Hi

Under certain conditions, copyrighted video served via digital rights management may experience playback issues.

A patch is underway. For an immediate workaround, please complete the following steps:

1. Go to about:config in the Awesomebar.
2. Search for media.eme.mfcdm.origin-filter.enabled.
3. Flip the pref from 1 to 0.
4. Select the check mark button.

Firefox 129.0.1 is Released and should fix this issue. https://www.mozilla.org/firefox/129.0.1/releasenotes/