{"id":8958,"date":"2020-12-16T08:30:07","date_gmt":"2020-12-16T16:30:07","guid":{"rendered":"http:\/\/blog.mozilla.org\/addons\/?p=8958"},"modified":"2020-12-15T13:11:24","modified_gmt":"2020-12-15T21:11:24","slug":"extensions-in-firefox-85","status":"publish","type":"post","link":"https:\/\/blog.mozilla.org\/addons\/2020\/12\/16\/extensions-in-firefox-85\/","title":{"rendered":"Extensions in Firefox 85"},"content":{"rendered":"<p>Before we get into the updates coming to Firefox 85, I want to highlight two changes that we uplifted to Firefox 84, now on release:<\/p>\n<ul>\n<li><a href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=1678306\">Expose HTTPS-Only preference in <code>privacy.network<\/code><\/a>. Firefox now has a setting to enable HTTPS-Only Mode, which can conflict with extensions like <a href=\"https:\/\/addons.mozilla.org\/addon\/https-everywhere\/?utm_source=blog.mozilla.org&amp;utm_medium=post&amp;utm_campaign=2020-12-firefox-85\">HTTPS Everywhere<\/a>. This change allows extensions to monitor the setting\u2019s value.<\/li>\n<li>The <a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Mozilla\/Add-ons\/WebExtensions\/API\/webRequest\"><code>webRequest<\/code><\/a> and <a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Mozilla\/Add-ons\/WebExtensions\/API\/proxy\"><code>proxy<\/code> APIs<\/a> will now be able to observe requests made through the View Source feature of Firefox.<\/li>\n<\/ul>\n<p>Now, back to our regular programming. Here\u2019s what\u2019s coming in Firefox 85, which is scheduled to be released on January 26, 2021:<\/p>\n<ul>\n<li>It is now possible to <a href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=1595858\">disable a homepage and new tab override<\/a> for an extension without disabling the extension. Special thanks to Erica Wright for getting this done.<\/li>\n<li>The \u201cUndo Close Tabs\u201d feature now does the right thing if an extension <a href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=1650956\">just closed multiple tabs<\/a>.<\/li>\n<li>The <a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Mozilla\/Add-ons\/WebExtensions\/API\/browsingData\"><code>browsingData<\/code> API<\/a> is now available on Firefox for Android.<\/li>\n<li>Certain errors triggered when an extension <a href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=1637059\">changes a permission to optional<\/a> during an update have been fixed.<\/li>\n<li>When the <code>devtools<\/code> permission is revoked and then granted, extension pages are now <a href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=1671579\">automatically enabled in the toolbox<\/a>.<\/li>\n<\/ul>\n<p>And finally, we want to remind you about upcoming site isolation changes with <a href=\"https:\/\/wiki.mozilla.org\/Project_Fission\">Project Fission<\/a>. As we <a href=\"https:\/\/blog.mozilla.org\/addons\/2020\/10\/07\/extensions-in-firefox-82\/#fission\">previously mentioned<\/a>, the <code>drawWindow<\/code> method is being deprecated as part of this work. If you use this API, we recommend that you switch to the <a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Mozilla\/Add-ons\/WebExtensions\/API\/tabs\/captureTab\"><code>captureTab<\/code><\/a> method.<\/p>\n<p>About 15% of users on Nightly currently run with Fission. If you see any bug reports that you can\u2019t replicate, remember to test with Fission enabled. Instructions for enabling Fission can be found on the <a href=\"https:\/\/wiki.mozilla.org\/Project_Fission#Enabling_Fission\">wiki<\/a>.<\/p>\n<h2>Thanks<\/h2>\n<p>Big thanks to Liz Krane, Ankush Dua, and Michael Goossens for their contributions to this release!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Before we get into the updates coming to Firefox 85, I want to highlight two changes that we uplifted to Firefox 84, now on release: Expose HTTPS-Only preference in privacy.network. &hellip; <a class=\"go\" href=\"https:\/\/blog.mozilla.org\/addons\/2020\/12\/16\/extensions-in-firefox-85\/\">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":[388,44,227,278886],"tags":[278877,278873,322936,278875,278871],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Extensions in Firefox 85 - 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\/2020\/12\/16\/extensions-in-firefox-85\/\" \/>\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\/2020\/12\/16\/extensions-in-firefox-85\/\",\"url\":\"https:\/\/blog.mozilla.org\/addons\/2020\/12\/16\/extensions-in-firefox-85\/\",\"name\":\"Extensions in Firefox 85 - Mozilla Add-ons Community Blog\",\"isPartOf\":{\"@id\":\"https:\/\/blog.mozilla.org\/addons\/#website\"},\"datePublished\":\"2020-12-16T16:30:07+00:00\",\"dateModified\":\"2020-12-15T21:11:24+00:00\",\"author\":{\"@id\":\"https:\/\/blog.mozilla.org\/addons\/#\/schema\/person\/a098261b4b5510d408ff31f492606925\"},\"breadcrumb\":{\"@id\":\"https:\/\/blog.mozilla.org\/addons\/2020\/12\/16\/extensions-in-firefox-85\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/blog.mozilla.org\/addons\/2020\/12\/16\/extensions-in-firefox-85\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/blog.mozilla.org\/addons\/2020\/12\/16\/extensions-in-firefox-85\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/blog.mozilla.org\/addons\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Extensions in Firefox 85\"}]},{\"@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":"Extensions in Firefox 85 - 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