Tab muted state and the reason for the last state change.

interface MutedInfo {
    extensionId?: string;
    muted: boolean;
    reason?: MutedInfoReason;
}
Index
extensionId? muted reason?
extensionId?: string

The ID of the extension that changed the muted state. Not set if an extension was not the reason the muted state last changed.

muted: boolean

Whether the tab is prevented from playing sound (but hasn't necessarily recently produced sound). Equivalent to whether the muted audio indicator is showing.

reason?: MutedInfoReason

The reason the tab was muted or unmuted. Not set if the tab's mute state has never been changed.