{"json_modified": "2016-05-10T07:40:22.838039", "uuid": "5b2bdb0a-e21c-45a0-8dd7-b7e3bbdc8d31", "title": "Firefox 21 for developers", "url": "/en-US/docs/Mozilla/Firefox/Releases/21", "tags": ["Mozilla", "Firefox"], "translations": [{"uuid": "7a8ce488-3218-45d1-9e5d-65c2e7caa3e7", "title": "Firefox 21 pour les d\u00e9veloppeurs", "url": "/fr/docs/Mozilla/Firefox/Versions/21", "tags": ["Firefox", "Firefox 21"], "summary": "Firefox 21 est sorti le 14 mai 2013. Cette page r\u00e9sume les principaux changements dans Firefox 21 qui sont utiles aux d\u00e9veloppeurs, que vous soyez d\u00e9veloppeur web, d\u00e9veloppeur Firefox et Gecko, ou d\u00e9veloppeur d'add-ons.", "localization_tags": [], "locale": "fr", "last_edit": "2013-06-24T11:45:36", "review_tags": []}, {"uuid": "fed414dc-c9c8-4c9b-a1da-1e1f4e883b7e", "title": "Firefox 21 for developers", "url": "/ja/docs/Mozilla/Firefox/Releases/21", "tags": ["Firefox", "Firefox 21"], "summary": "Gecko 21 \u3092\u642d\u8f09\u3057\u305f Firefox 21 \u306f\u7c73\u56fd\u6642\u9593 2013 \u5e74 5 \u6708 14 \u65e5\u306b\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u306e\u30da\u30fc\u30b8\u3067\u306f\u3001\u958b\u767a\u8005\u306b\u5f71\u97ff\u3059\u308b Firefox 20 \u306e\u5909\u66f4\u70b9\u3092\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002", "localization_tags": [], "locale": "ja", "last_edit": "2015-09-08T18:16:24", "review_tags": []}, {"uuid": "fb3d9e40-b13f-428f-b0f9-d7925b62f8f0", "title": "Firefox 21 for developers", "url": "/zh-CN/docs/Mozilla/Firefox/Releases/21", "tags": [], "summary": "", "localization_tags": [], "locale": "zh-CN", "last_edit": "2013-05-14T06:34:56", "review_tags": []}], "modified": "2016-05-10T07:40:22", "label": "Firefox 21 for developers", "localization_tags": [], "locale": "en-US", "id": 59853, "last_edit": "2016-05-10T07:40:14", "summary": "Firefox 21 was released on May 14, 2013. This article lists key changes that are useful not only for web developers, but also Firefox and Gecko developers as well as add-on developers.", "sections": [{"id": "Changes_for_Web_developers", "title": "Changes for Web developers"}, {"id": "HTML", "title": "HTML"}, {"id": "JavaScript", "title": "JavaScript"}, {"id": "CSS", "title": "CSS"}, {"id": "DOM", "title": "DOM"}, {"id": "SVG", "title": "SVG"}, {"id": "Networking", "title": "Networking"}, {"id": "Worker", "title": "Worker"}, {"id": "Changes_for_add-on_and_Mozilla_developers", "title": "Changes for add-on and Mozilla developers"}, {"id": "See_also", "title": "See also"}, {"id": "Older_versions", "title": "Older versions"}], "slug": "Mozilla/Firefox/Releases/21", "review_tags": []}