When sound starts playing on a web page, Firefox lets you know which page it's coming from.
- Visit the tabs tray by tapping the number next to the address bar:
- You'll see your open tabs.
- Look for the pause icon on the tab list to see which tabs are playing audio.
- This icon is a button that allows you to stop the sound.
- If you stop the sound, the button becomes a play button allowing you to resume playing the sound later.