Crowsnest webrtc stream stays on after site is closed on android (chrome & firefox)

So, I have been scratching my head for couple weeks now as I noticed that camera stream is not killed if web browser is closed on my android phone (Nothing Phone(1)). On Firefox the stream is killed if I close the tab and then close the browser, but if I close the browser before killing the tab, the stream stays on and when the browser is opened again, a new stream is created. On chrome a new stream is always created. Only way I have been able to kill these ghost streams is by rebooting the raspberry on which I am running the ratos. In the traffic graph from my firewall you see clear jumps in bandwidth each representing closing and opening the browser. The one where the usage drops is from firefox by closing the tab as the stream gets killed that way. What could be the cause of this and how to fix it?