On Sat, Sep 2, 2017, at 06:06 AM, Emilio Cobos Álvarez wrote: > Hi dev-platform@, > > I'd like to unship access to the :-moz-system-metric pseudo-class, and > the system metric media queries, from content pages. I just filed > <https://bugzilla.mozilla.org/show_bug.cgi?id=1396066> for that. > > They're not in any spec, and they seem unused (I can't find anything > non-mozilla-related in Github code search). Furthermore they expose > system information, which can be a fingerprinting vector, and pretty > random stuff like "is a color picker available?". > > According to Boris it predates Gecko's capacity to not expose stuff. > > I think it should be pretty safe to unship, but let me know if you don't > think that way, or have data that indicates the opposite. > > The intention is to do that in Firefox 58, given we don't want to add > extra risk to Stylo.
To make things clear, this bug is going to unship the pseudo-class :-moz-system-metric and the following media queries from content page: * -moz-color-picker-available * -moz-scrollbar-start-backward * -moz-scrollbar-start-forward * -moz-scrollbar-end-backward * -moz-scrollbar-end-forward * -moz-scrollbar-thumb-proportional * -moz-overlay-scrollbars * -moz-windows-default-theme * -moz-mac-graphite-theme * -moz-mac-yosemite-theme * -moz-windows-accent-color-in-titlebar * -moz-windows-compositor * -moz-windows-classic * -moz-windows-glass * -moz-menubar-drag * -moz-windows-theme * -moz-os-version * -moz-swipe-animation-enabled * -moz-physical-home-button * -moz-is-glyph Mostly of them will still be available in UA sheets and chrome documents. -moz-physical-home-button may be removed completely as it is just a leftover from B2G. emilio's current patch also includes unshipping -moz-touch-enabled, but I don't think we should do that until we implement the standard equivalent of this media query in bug 1035774. - Xidorn _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
