Curious over what it does. This seems to be the meta bug tracking this : https://bugzilla.mozilla.org/show_bug.cgi?id=1535711 https://bugzilla.mozilla.org/show_

Curious over what it does. This seems to be the meta bug tracking this : https://bugzilla.mozilla.org/show_bug.cgi?id=1535711 https://bugzilla.mozilla.org/show_bug.cgi?id=1535711 . There are lot of linked issues and there is no clear description over this behavior. Can someone add in a link?