5 archived: This sheet has not been updated with newer Firefox releases.
8 ### [Firefox 31](https://www.mozilla.org/en-US/firefox/31.0/releasenotes/) (July 2014)
12 ### [Firefox 30](https://developer.mozilla.org/en-US/Firefox/Releases/30) (June 2014)
14 * CSS: Allow `line-height` in `<input type='button'>`
15 * JS: `Console.count()`
16 * JS: ES6 array and generator comprehensions
18 ### Firefox 29 (April 2014)
21 * CSS: Unprefixed `box-shadow`
23 ### Firefox 18 (Jan 2013)
25 * Faster JS compiler (IonMonkey)
27 * JS: `window.devicePixelRatio`
28 * JS: unprefixed `ontouchstart`
29 * HTML: `<input type='number'>`
30 * HTML: `<input type='color'>`
32 ### Firefox 17 (Nov 2012)
34 * No more support for Mac OSX 10.5 and below
35 * SVG `FillPaint` and `StrokePaint`
36 * HTML `<iframe sandbox=...>` ([docs][iframe-sandbox])
37 * Official support for Windows 8 ([link][17reqs])
39 [iframe-sandbox]: https://developer.mozilla.org/en-US/docs/HTML/Element/iframe#attr-sandbox
40 [17reqs]: http://www.mozilla.org/en-US/firefox/17.0/system-requirements/
42 ### Firefox 16 (Oct 2012)
44 * Web app support ([docs][webapp])
45 * Unprefixed CSS animations, transitions, transforms, gradients
47 [webapp]: https://developer.mozilla.org/en-US/docs/Apps/Getting_Started
49 ### Firefox 15 (Aug 2012)
54 * HTML `<audio played>` (and `<video>`)
55 * HTML `<source media=...>`
57 ### Firefox 14 (Jul 2012)
59 * Full screen support for OSX Lion
60 * JS pointer lock API ([docs][lock])
61 * JS display sleep API ([docs][sleep])
63 [lock]: https://developer.mozilla.org/en-US/docs/API/Pointer_Lock_API
64 [sleep]: https://bugzilla.mozilla.org/show_bug.cgi?id=697132
66 ### Firefox 13 (Jun 2012)
68 * Smooth scrolling by default
70 * CSS `column-fill` ([docs][cf])
71 * ECMA 6 `Map` and `Set`
72 * CSS `background-position` extended syntax
74 * CSS turn unit (`rotate(0.5turn)`)
77 [cf]: https://developer.mozilla.org/en/CSS/column-fill
79 ### Firefox 12 (Apr 2012)
81 * CSS `text-align-last` ([docs][tal])
83 [tal]: https://developer.mozilla.org/en/CSS/text-align-last
85 ### Firefox 11 (Mar 2012)
87 * `element.outerHTML` ([docs][outer])
88 * Dev tools: Style editor, 3D page inspector ([docs][tools])
89 * Unprefixed web sockets
90 * CSS `text-size-adjust` ([docs][tsa])
92 [outer]: https://developer.mozilla.org/en-US/docs/DOM/element.outerHTML
93 [tools]: https://hacks.mozilla.org/2011/12/new-developer-tools-in-firefox-11-aurora/
94 [tsa]: https://developer.mozilla.org/en-US/docs/CSS/text-size-adjust
96 ### Firefox 10 (Jan 2012)
99 * HTML `<bdi>` element
100 * JS fullscreen API ([docs][fs])
102 * Dev tools: CSS Style inspector
104 [fs]: https://wiki.mozilla.org/Platform/Features/Full_Screen_APIs
106 ### Firefox 9 (Dec 2011)
108 * Two-finger swipe in Mac OSX Lion
110 * CSS improved `text-overflow`
111 * JS `navigator.doNotTrack`
113 ### Firefox 8 (Nov 2011)
115 ### Firefox 7 (Sep 2011)
117 * CSS `text-overflow: ellipsis`
118 * Hidden `http://` prefix in address bar
120 ### Firefox 6 (Aug 2011)
122 * JS `window.matchMedia`
124 * JS EvetnSource / server-sent events
126 ### Firefox 5 (Jun 2011)
129 * Background tab `setTimeout` and `setInterval` clamped to 1000ms
131 ### Firefox 4 (Mar 2011)
133 * Do Not Track (DNT) header
134 * New JS endinge (JagerMonkey)
135 * Hardware-accelerated rendering
137 * OpenType ligatures/kerning/font variants
138 * CSS transitions partial support
140 * JS `mozRequestAnimationFrame`
147 ### Firefox 3.6 (Jan 2010)
151 * HTML drag & drop API
152 * HTML `<script async>`
156 * [Firefox releases](https://www.mozilla.org/en-US/firefox/releases/)