Videos always start with sound off

I'm using Firefox, and I've tried on both my desktop and Samsung tablet. Every video I watch starts with the sound off and I have to click the speaker icon to turn it on. Since I obviously need sound, it's kind of annoying. Oddly, Edge doesn't do this so maybe it's just Firefox? Anyone notice this?

arcanerobobrain, this is a setting on your browser that you can change. We made a guide here, and the instructions for Firefox are toward the bottom:

https://support.guitartricks.com/hc/en-us/articles/360016144754-Sound-is-muted-automatically-when-starting-a-Lesson

Thanks Ben. The instructions are a little outdated. It looks like Firefox has changed their settings page a bit. The setting to change is under "Autoplay". But the videos are playing as expected now.