Recently, when I joined an online meeting through my browser; I had used picture-in-picture mode to be able to see what was presented while I used other tabs and programs. However, I noticed that there wasn't an option to mute/unmute, turn on/off the camera, and other controls. Now, I don't know if this is possible to integrate in Firefox's picture-in-picture mode. But I feel like with this kind of functionality implemented in picture-in-picture mode, it would save users' time in being able to turn on/off their microphone or camera from the picture-in-picture mode. Instead of having to go back to the tab where the meeting is and turn on/off their camera or microphone. Sure, some people would have the meeting software installed on their computer, but there are users would rather use their browser to join or host meetings.