https://addons.opera.com/en/extensions/details/keepbackplay/
KeepBackPlay extension - Opera add-ons
Many browser automatically pauses media playback when you switch to another tab or application. This extension will keep the media playing in the background.
extensionoperaaddons
https://addons.opera.com/nb/extensions/details/keepbackplay/
KeepBackPlay utvidelse - Opera-tillegg
Automatically keep media play in the background.
operatillegg
https://addons.opera.com/fy/extensions/details/keepbackplay/
KeepBackPlay tafoeging - Opera opset stikken
Automatically keep media play in the background.
operastikken