I surf around with the mute button on an have never had anything interfere with it
Every now and then live jasmin gets through but the firefox script blocker No script
seems to stop it from opening fully.
A side note - the other possibility is the adobe flash player plugin
became vulnerable 9 days ago - you might have picked up something unwanted in that time
Some browsers dont automatically update plugins
Adobe has released security updates for Adobe Flash Player for Windows, Macintosh, Linux and Chrome OS. These updates address two critical memory corruption vulnerabilities that could lead to code execution.
12th/9/2017
https://helpx.adobe.com/security/pro...apsb17-28.html