javascript - Get screen resolution independent of zoom in Firefox -


the existing answer incorrect: detect real screen resolution (ignoring browser zoom etc.)

it not show screen resolution, rather document size.

is there way screen resolution in firefox, when zoom applied?

ok, https://github.com/mp31415 have working solution:

var isie = function () {   if(navigator.appname === "microsoft internet explorer") {     return true;   } else if(navigator.appname === "netscape" && /trident/.test(navigator.useragent)) { // ie 11     return true;   }   return false; }; var isff = function () {   return !!navigator.useragent.match(/firefox/i); }; var sw = screen.width; var sh = screen.height; var zoom = 1; if (this.isie()) {     zoom = screen.devicexdpi / screen.systemxdpi;     zoom = this.round5(zoom*100)/100; } else if (this.isff()) {     zoom = window.devicepixelratio; } if (zoom != 1) {   sh = this.round10(sh * zoom);   sw = this.round10(sw * zoom); }

this code returns resolution scaled retina displays otherwise works fine.


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