#New Firefox interface features - Multiple tab selection - Devtools improvements #New CSS features in 64 - Standardizing proprietary styling features - New media queries - Multi-position color stop gradients #JavaScript improvements #New Web API highlights - Fullscreen API unprefixed - WebVR 1.1 in macOS - startMessages() for Service Workers #New Add-ons Features - Context menu enhancements - Custom content in the Dev Tools inspector - Managing add-ons updated #Privacy features for your protection - Symantec CA Distrust - Referrer-Policy for stylesheets - buildID fixed timestamp
