{"id":7115,"date":"2014-04-14T16:22:57","date_gmt":"2014-04-14T23:22:57","guid":{"rendered":"http:\/\/blog.mozilla.org\/addons\/?p=7115"},"modified":"2014-04-15T12:44:58","modified_gmt":"2014-04-15T19:44:58","slug":"compatibility-for-firefox-29","status":"publish","type":"post","link":"https:\/\/blog.mozilla.org\/addons\/2014\/04\/14\/compatibility-for-firefox-29\/","title":{"rendered":"Add-on Compatibility for Firefox 29"},"content":{"rendered":"<p>Firefox 29 will be <a href=\"https:\/\/wiki.mozilla.org\/RapidRelease\/Calendar\">released<\/a> on April 29th. Here&#8217;s the list of changes that went into this version that can affect add-on compatibility. There is more information available in <a href=\"https:\/\/developer.mozilla.org\/en-US\/Firefox\/Releases\/29\">Firefox 29 for Developers<\/a>, so you should read that too.<\/p>\n<h3>Australis!<\/h3>\n<div id=\"attachment_7116\" style=\"width: 630px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/blog.mozilla.org\/addons\/files\/2014\/04\/godzilla.png\"><img aria-describedby=\"caption-attachment-7116\" decoding=\"async\" loading=\"lazy\" class=\"size-large wp-image-7116\" alt=\"This is an actual movie\" src=\"https:\/\/blog.mozilla.org\/addons\/files\/2014\/04\/godzilla-620x270.png\" width=\"620\" height=\"270\" srcset=\"https:\/\/blog.mozilla.org\/addons\/files\/2014\/04\/godzilla-620x270.png 620w, https:\/\/blog.mozilla.org\/addons\/files\/2014\/04\/godzilla-252x110.png 252w, https:\/\/blog.mozilla.org\/addons\/files\/2014\/04\/godzilla.png 1600w\" sizes=\"(max-width: 620px) 100vw, 620px\" \/><\/a><p id=\"caption-attachment-7116\" class=\"wp-caption-text\">Yes, this is a joke.<\/p><\/div>\n<p>This is a big one. The Australis theme introduces major changes that all add-on developers should be aware of, but it&#8217;s nowhere nearly as dramatic as initially thought. We&#8217;ve already been blogging about it extensively, so please give these articles a read if you haven&#8217;t already:<\/p>\n<ul>\n<li><a href=\"https:\/\/blog.mozilla.org\/addons\/2013\/12\/12\/australis-for-add-on-developers-1\/\" target=\"_blank\">Australis for Add-on Developers \u2013 Part 1: Toolbars<\/a><\/li>\n<li><a href=\"https:\/\/blog.mozilla.org\/addons\/2014\/03\/06\/australis-for-add-on-developers-2\/\" target=\"_blank\">Australis for Add-on Developers \u2013 Part 2: CustomizableUI<\/a><\/li>\n<li><a href=\"https:\/\/blog.mozilla.org\/addons\/2014\/03\/13\/new-add-on-sdk-australis-ui-features-in-firefox-29\/\" target=\"_blank\">New Add-on SDK Australis UI features in Firefox 29<\/a><\/li>\n<\/ul>\n<p>Notable changes include the removal of the add-on bar and the Firefox button on Windows, the introduction of the menu panel, and an overhaul in the toolbar customization system. Toolbars are no longer hidden for about: pages, there&#8217;s no small\/large button setting anymore, and tabs are always on top.<\/p>\n<p>Make sure you test your add-on extensively, paying special attention to button customization.<\/p>\n<p>If you notice any problems in your add-ons related to Australis, please file a bug and add it as a dependency to one of these bugs:<\/p>\n<ul>\n<li><a href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=australis-addons\">Add-on issues<\/a>. This is for add-ons that haven&#8217;t been updated yet and are visually broken in Firefox 29 and above.<\/li>\n<li><a href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=australis-addonfixes\">Australis add-on bugs<\/a>. Use this one if something is broken in your add-on and you believe it&#8217;s a bug in the new code.<\/li>\n<\/ul>\n<h3>General<\/h3>\n<ul>\n<li><a href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=946564\">Make window._content chromeonly<\/a>. This means _content is now only accessible from privileged scripts.<\/li>\n<li><a href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=896193\">Adopt Promises in mozIAsyncLivemarks<\/a>. This applies to these functions:\u00a0addLivemark, removeLivemark, getLivemark. While they still work as before, the callbacks will be eventually removed, so you should move to using the <a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Mozilla\/JavaScript_code_modules\/Promise.jsm\">Promise<\/a> now returned by the functions.<\/li>\n<li><a href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=937461\">Make cloneNode\/importNode with the &#8220;deep&#8221; arg not passed default to shallow cloning<\/a>.<\/li>\n<li><a href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=942374\">Support session restore with multiple processes<\/a>. Some refactoring the session restore code, notably separating the content bits into another module.<\/li>\n<li><del><a href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=757726\">Disallow enumeration of navigator.plugins<\/a><\/del>. This has been pushed back a few versions.<strong> <\/strong><\/li>\n<li><a href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=845057\">Fix the type of HTMLIFrameElement.sandbox<\/a>. It&#8217;s no longer a string, but a list of strings.<\/li>\n<\/ul>\n<h3>XPCOM<\/h3>\n<ul>\n<li><a href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=946647\">Remove bidi attributes in nsIMarkupDocumentViewer<\/a>.<\/li>\n<li><a href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=963665\">Make nsIXPConnect noscript<\/a>.<\/li>\n<li><a href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=794943\">Remove nsISecurityCheckedComponent<\/a>.<\/li>\n<\/ul>\n<h3>New!<\/h3>\n<ul>\n<li><a href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=803188\">Provide a way to convert from a file path to a file:\/\/ URI (and vice-versa)<\/a>. Finally, shortcuts for this! They&#8217;re available as OS.Path.toFileURI, and OS.Path.fromFileURI.<\/li>\n<li><a href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=854169\">Bindings for lz4 (zlib)<\/a>.<\/li>\n<\/ul>\n<p>Please let me know in the comments if there&#8217;s anything missing or incorrect on these lists. If your add-on breaks on Firefox 29, I&#8217;d like to know.<\/p>\n<p>The automatic compatibility validation and upgrade for add-ons on AMO will happen soon, so keep an eye on your email if you have an add-on listed on our site with its compatibility set to Firefox 28.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Firefox 29 will be released on April 29th. Here&#8217;s the list of changes that went into this version that can affect add-on compatibility. There is more information available in Firefox &hellip; <a class=\"go\" href=\"https:\/\/blog.mozilla.org\/addons\/2014\/04\/14\/compatibility-for-firefox-29\/\">Read more<\/a><\/p>\n","protected":false},"author":173,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[388,44,295],"tags":[28092,278877,278873,278876,42919],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Add-on Compatibility for Firefox 29 - Mozilla Add-ons Community Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.mozilla.org\/addons\/2014\/04\/14\/compatibility-for-firefox-29\/\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jorge Villalobos\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/blog.mozilla.org\/addons\/2014\/04\/14\/compatibility-for-firefox-29\/\",\"url\":\"https:\/\/blog.mozilla.org\/addons\/2014\/04\/14\/compatibility-for-firefox-29\/\",\"name\":\"Add-on Compatibility for Firefox 29 - 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