"Play tab" pinned tab icon seems useless.

[DreamingVoid]

https://support.google.com/voice/thread/303608236/play-tab-when-pinned-tab-loads

Is this Voice or Firefox being stupid?

[DreamingVoid]

To be clear, the tab is NOT playing anything when it loads and clicking "Play tab" or the tab itself does nothing except clear the "Play tab" icon. Many other pinned tabs have the ability to play sounds, but don't show this.