{"id":8105,"date":"2017-03-27T13:46:44","date_gmt":"2017-03-27T20:46:44","guid":{"rendered":"http:\/\/blog.mozilla.org\/addons\/?p=8105"},"modified":"2017-04-03T09:25:53","modified_gmt":"2017-04-03T16:25:53","slug":"update-compatibility-milestones","status":"publish","type":"post","link":"https:\/\/blog.mozilla.org\/addons\/2017\/03\/27\/update-compatibility-milestones\/","title":{"rendered":"Update on Compatibility Milestones"},"content":{"rendered":"<p><a href=\"https:\/\/blog.mozilla.org\/addons\/2017\/02\/16\/the-road-to-firefox-57-compatibility-milestones\/\">The Road to Firefox 57<\/a> has been updated with a couple of changes to the timeline:<\/p>\n<ul>\n<li>Firefox won\u2019t run in multiprocess mode unless all enabled add-ons have the <a href=\"https:\/\/developer.mozilla.org\/en-US\/Add-ons\/Install_Manifests#multiprocessCompatible\">multiprocessCompatible flag<\/a> set to true or are WebExtensions. This means that developers who haven\u2019t set this flag don\u2019t have to worry about multiprocess compatibility and can focus on WebExtensions and the Firefox 57 deadline.<\/li>\n<li>The multiprocess compatibility shims will be removed earlier, starting with the Nightly and Developer Edition channels. Their purpose was to ease the transition to multiprocess compatibility, but given the change in the previous point, they aren\u2019t really needed anymore. Removing them will help track performance issues.<\/li>\n<\/ul>\n<p>None of these changes should require any immediate action from developers, but let us know if you have any questions or concerns.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Road to Firefox 57 has been updated with a couple of changes to the timeline: Firefox won\u2019t run in multiprocess mode unless all enabled add-ons have the multiprocessCompatible flag &hellip; <a class=\"go\" href=\"https:\/\/blog.mozilla.org\/addons\/2017\/03\/27\/update-compatibility-milestones\/\">Read more<\/a><\/p>\n","protected":false},"author":173,"featured_media":7600,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[388,44,295,278886],"tags":[278877,278873,278876,45292,288923,278871],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Update on Compatibility Milestones - 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\/2017\/03\/27\/update-compatibility-milestones\/\" \/>\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=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/blog.mozilla.org\/addons\/2017\/03\/27\/update-compatibility-milestones\/\",\"url\":\"https:\/\/blog.mozilla.org\/addons\/2017\/03\/27\/update-compatibility-milestones\/\",\"name\":\"Update on Compatibility Milestones - Mozilla Add-ons Community Blog\",\"isPartOf\":{\"@id\":\"https:\/\/blog.mozilla.org\/addons\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/blog.mozilla.org\/addons\/2017\/03\/27\/update-compatibility-milestones\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/blog.mozilla.org\/addons\/2017\/03\/27\/update-compatibility-milestones\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/blog.mozilla.org\/addons\/files\/2015\/11\/firefox_logo-only_RGB.png\",\"datePublished\":\"2017-03-27T20:46:44+00:00\",\"dateModified\":\"2017-04-03T16:25:53+00:00\",\"author\":{\"@id\":\"https:\/\/blog.mozilla.org\/addons\/#\/schema\/person\/a098261b4b5510d408ff31f492606925\"},\"breadcrumb\":{\"@id\":\"https:\/\/blog.mozilla.org\/addons\/2017\/03\/27\/update-compatibility-milestones\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/blog.mozilla.org\/addons\/2017\/03\/27\/update-compatibility-milestones\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/blog.mozilla.org\/addons\/2017\/03\/27\/update-compatibility-milestones\/#primaryimage\",\"url\":\"https:\/\/blog.mozilla.org\/addons\/files\/2015\/11\/firefox_logo-only_RGB.png\",\"contentUrl\":\"https:\/\/blog.mozilla.org\/addons\/files\/2015\/11\/firefox_logo-only_RGB.png\",\"width\":2982,\"height\":2808},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/blog.mozilla.org\/addons\/2017\/03\/27\/update-compatibility-milestones\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/blog.mozilla.org\/addons\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Update on Compatibility Milestones\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/blog.mozilla.org\/addons\/#website\",\"url\":\"https:\/\/blog.mozilla.org\/addons\/\",\"name\":\"Mozilla Add-ons Community Blog\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/blog.mozilla.org\/addons\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/blog.mozilla.org\/addons\/#\/schema\/person\/a098261b4b5510d408ff31f492606925\",\"name\":\"Jorge Villalobos\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/blog.mozilla.org\/addons\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/6d1966118f16e4b99a6e3ad07883be33?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/6d1966118f16e4b99a6e3ad07883be33?s=96&d=mm&r=g\",\"caption\":\"Jorge Villalobos\"},\"description\":\"Jorge is the Product Manager for addons.mozilla.org\",\"url\":\"https:\/\/blog.mozilla.org\/addons\/author\/jvillalobosmozilla-com\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Update on Compatibility Milestones - 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