HTMLDocument.cookie -> Document.cookie in Firefox 68 (#4351)
HTMLDocument.cookie -> Document.cookie in Firefox 68 (#4351)

Source:
* https://bugzilla.mozilla.org/show_bug.cgi?id=144795
chrisdavidmills/browser-compat-data,mdn/browser-compat-data,mdn/browser-compat-data,chrisdavidmills/browser-compat-data