First off, apologies - I don't know if this is a YouTube problem, a Steam Deck problem or a Firefox problem. I haven't been able to figure out the cause of this problem for months so I'm trying you guys because you're more responsive than YouTube has been so I'm really hoping it's a Firefox problem. Basically since early June I've been getting "an error occurred" errors for YouTube videos of approximately an hour. Longer videos and shorter videos tend to play fine, but I get the issue with videos under ten minutes sometimes as well. This only occurs in Firefox on my Steam Deck (SteamOS). Other browsers and other devices are fine. I have cleared my cache, cleared cookies, disabled extensions and logged in and out of YouTube to no avail. The problem still occurs in troubleshoot mode and updating Firefox hasn't fixed it. Would appreciate any troubleshooting tips and again, apologies if this ends up not being a Firefox problem, I just don't know what else to try at this point.