Error with CANALPLUS.COM

[glaborie]

Since the last update the following error occurs on canalplus.com :

MEDIA_IS_ENCRYPTED_ERROR: No `keySystems` option given.;312

[ramen]

I have the same problem, chrome and edge works without problem, firefox after the update does not work

[ramen]

solution is to change in about:config the value 1 to 0 for media.eme.mfcdm.origin-filter.enabled