Just updated to version 115.0 on 7/4/23 and experiencing issues with videos and livestreams.

Recently had my FF update to version 115.0 automatically. With the update, watching videos on youtube is impossible. Videos show buffering but never play the video and do not start even with skipping around. Same thing goes for live streams on twitch where the chats will load but not the actual stream. Other videos in news websites appear to be the same. Issue is not resolved in private browsing.