SDR Web Radio, a Chrome extension WebSDR companion
This Chrome extension firstly intent to activate the audio for WebSDR.org server pages in the chrome browser, but you can also make use of Mute, Squelch, Autonotch, as well as buttons to control frequency and volume and modulation mode selectors.
Some features like Sticky might not work in modified websdr.org standard server pages. The mouse wheel function does not work on touch screens at least you install a plugin program on Windows like TouchMe Gesture Studio. On laptops you could need to activate the touch pad virtual scrolling.