Firefox 44 added Web Push support [0]. They give you OS notifications even after closing the web site they're coming from. According to CanIUse Chrome has parti

Firefox 44 added Web Push support [0]. They give you OS notifications even after closing the web site they're coming from. According to CanIUse Chrome has partial support for it[1]. 0: https://hacks.mozilla.org/2016/01/web-push-arrives-in-firefox-44/ https://hacks.mozilla.org/2016/01/web-push-arrives-in-firefo... 1: http://caniuse.com/#feat=push-api http://caniuse.com/#feat=push-api