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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/