hello, i've facing this issue for weeks. i've completely abandoned windows server 2019 as daily os and installed windows 10 with latest patches. installed firefox and firefox developer as usual and did my same settings for years. but videos can't be played on reddit, twitter and linkedin. i tried to refresh browser, disabled addons (only ublock and enhancer for youtube is installed) to be sure. but still got nothing. in my laptop with same addons and same privacy & security settings could play videos. twitter: https://i.imgur.com/rnPSWpd.png linkedin: https://i.imgur.com/LPrBbuA.png i can share everything that would solves the problem. thank you in advance.