If I have a video running in Youtube and I decide to put the computer to sleep the following happens when I revive the session: Firefox - the video will be running but without sound. Stopping and starting the video makes no difference - the only way to get sound is to reload the page which means the video goes back to the start. MS Edge by contrast (under exactly the same circumstances) presents a page where the video has stopped but when I click on "play" the video resumes complete with sound. To me this makes much more sense but I do not want to use Edge! I wonder if there is a setting I could adjust in Firefox to address this issue. Thanks.