{"json_modified": "2016-10-22T07:12:59.750151", "uuid": "35a8ce71-0897-4f3e-b3ef-e35fba968e97", "title": "Firefox 49 for developers", "url": "/en-US/docs/Mozilla/Firefox/Releases/49", "tags": ["Firefox", "Release Notes", "release notes"], "translations": [{"uuid": "9db7c866-1250-4193-91c5-b7b00d09c91b", "title": "Firefox 49 for developers", "url": "/ja/docs/Mozilla/Firefox/Releases/49", "tags": ["Firefox", "Release Notes", "release notes"], "summary": "Firefox 49 \u306f\u3001\u7c73\u56fd\u6642\u9593 2016 \u5e74 9 \u6708 20 \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 49 \u306e\u5909\u66f4\u70b9\u3092\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002", "localization_tags": [], "locale": "ja", "last_edit": "2016-10-22T07:11:56", "review_tags": []}, {"uuid": "e1f793c1-78c5-40db-9aa5-8b2efba6a8b9", "title": "Firefox 49 for developers", "url": "/zh-CN/docs/Mozilla/Firefox/Releases/49", "tags": ["\u53d1\u884c\u5907\u6ce8", "Firefox"], "summary": "Firefox 49\uff0c\u57fa\u4e8e Gecko 49, \u5c06\u4f1a\u5728 September 2016 \u6b63\u5f0f\u53d1\u5e03\u3002\u672c\u6587\u8bb0\u5f55\u4e86\u5f00\u53d1\u8005\u4eec\u5e94\u8be5\u6ce8\u610f\u7684,\u8be5\u7248\u672c\u7684 Firefox \u7684\u5404\u79cd\u53d8\u5316\u3002", "localization_tags": ["inprogress"], "locale": "zh-CN", "last_edit": "2016-09-22T05:49:22", "review_tags": ["editorial"]}], "modified": "2016-09-22T07:00:17", "label": "Firefox 49 for developers", "localization_tags": [], "locale": "en-US", "id": 181748, "last_edit": "2016-09-22T06:58:51", "summary": "To test the latest developer features of Firefox,
\n install Firefox Developer Edition
Firefox 49 was released on September 20, 2016. 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": "Developer_Tools", "title": "Developer Tools"}, {"id": "HTML", "title": "HTML"}, {"id": "CSS", "title": "CSS"}, {"id": "JavaScript", "title": "JavaScript"}, {"id": "InterfacesAPIsDOM", "title": "Interfaces/APIs/DOM"}, {"id": "DOM_HTML_DOM", "title": "DOM & HTML DOM"}, {"id": "Canvas", "title": "Canvas"}, {"id": "WebGL", "title": "WebGL"}, {"id": "IndexedDB", "title": "IndexedDB"}, {"id": "Service_Workers_and_related", "title": "Service Workers and related"}, {"id": "Media_Streams", "title": "Media Streams"}, {"id": "WebRTC", "title": "WebRTC"}, {"id": "New_APIs", "title": "New APIs"}, {"id": "Others", "title": "Others"}, {"id": "MathML", "title": "MathML"}, {"id": "SVG", "title": "SVG"}, {"id": "AudioVideo", "title": "Audio/Video"}, {"id": "HTTP", "title": "HTTP"}, {"id": "Networking", "title": "Networking"}, {"id": "Security", "title": "Security"}, {"id": "Compatibility", "title": "Compatibility"}, {"id": "Changes_for_add-on_and_Mozilla_developers", "title": "Changes for add-on and Mozilla developers"}, {"id": "WebExtensions", "title": "WebExtensions"}, {"id": "Interfaces", "title": "Interfaces"}, {"id": "Other", "title": "Other"}, {"id": "See_also", "title": "See also"}, {"id": "Older_versions", "title": "Older versions"}], "slug": "Mozilla/Firefox/Releases/49", "review_tags": []}