{"id":6580,"date":"2013-06-11T13:37:21","date_gmt":"2013-06-11T20:37:21","guid":{"rendered":"http:\/\/blog.mozilla.org\/addons\/?p=6580"},"modified":"2013-06-11T13:37:21","modified_gmt":"2013-06-11T20:37:21","slug":"firefox-22-compatibility-update","status":"publish","type":"post","link":"https:\/\/blog.mozilla.org\/addons\/2013\/06\/11\/firefox-22-compatibility-update\/","title":{"rendered":"Firefox 22 Compatibility Update"},"content":{"rendered":"<p>About a week ago I published the <a href=\"https:\/\/blog.mozilla.org\/addons\/2013\/06\/03\/compatibility-for-firefox-22\/\">Firefox 22 Add-on Compatibility<\/a> post. Today I learned about a new compatibility-breaking change that could affect some add-ons, though it seems to be unlikely. I would have mentioned it in my previous post if I had known about it then, so I thought it was necessary to post this update.<\/p>\n<p><a href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=880042\">nsIFilePicker crash if overriding component has not implemented a domfiles getter<\/a>. This crash bug was recently filed, caused by an add-on that overrides the nsIFilePicker component. The crash appeared in Firefox 22, due to <a href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=832923\">bug 832923,<\/a> which changed the nsIFilePicker interface. So, if your add-on does that, you should update its implementation to make sure it includes the domfile and domfiles getters.<\/p>\n<p>The crash bug will be fixed so that Firefox doesn&#8217;t crash even when faced with the interface mismatch. However, affected add-ons still won&#8217;t work correctly unless updated.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>About a week ago I published the Firefox 22 Add-on Compatibility post. Today I learned about a new compatibility-breaking change that could affect some add-ons, though it seems to be &hellip; <a class=\"go\" href=\"https:\/\/blog.mozilla.org\/addons\/2013\/06\/11\/firefox-22-compatibility-update\/\">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":[278877,278873,278876,28093],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Firefox 22 Compatibility Update - 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\/2013\/06\/11\/firefox-22-compatibility-update\/\" \/>\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\/2013\/06\/11\/firefox-22-compatibility-update\/\",\"url\":\"https:\/\/blog.mozilla.org\/addons\/2013\/06\/11\/firefox-22-compatibility-update\/\",\"name\":\"Firefox 22 Compatibility Update - 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