Firefox is catching up with Chrome! Last week, Chrome 88 was released and today Firefox 85 was released. Firefox is now just 3 versions away from catching Chrome. In this blog post, we'll take a look at the new Firefox features. We have also installed the new Firefox 85 version to our cross-browser testing cloud and you can already test your apps in Firefox 85.
Try Browserling on Firefox 85 now!
Summary: New in Firefox 85
- Protection from supercookies.
- Bookmarks now have location history.
- Improved password manager.
- Removal of Adobe Flash support.
- Added support for the CSS
- And as always - bug fixes, security fixes, and new policies.
New in Firefox 85 in Detail
Enhanced Protection From Supercookies
Firefox 85 now protects you from supercookies. Supercookies is a type of tracker that can stay hidden in your browser and track you online, even after you clear cookies. Firefox now prevents supercookies from tracking your web browsing from one site to the next by isolating them.
It's easier than ever to save and access your bookmarks. Firefox now remembers your preferred location for saved bookmarks, displays the bookmarks toolbar by default on new tabs, and gives you easy access to all of your bookmarks via a toolbar folder.
Improved Password Manager
The password manager now allows you to remove all of your saved logins with one click, as opposed to having to delete each login individually.
Web Developer's Corner
If you're a web developer, then you'll be interested in the next section that lists changes for developers. The most notable change is the addition of the JS expression beautifier in the Console source editor:
Developer Tools Changes
- Developers can now use the Page Inspector to toggle the
:focus-visiblepseudo-class for the currently selected element.
- Link preloading via
<link rel="preload">is now enabled. The preload keyword for the rel attribute of the <link> element indicates the user is highly likely to require the target resource for the current navigation, and therefore the browser must preemptively fetch and cache the resource.
- The <menuitem> HTML element is no longer available - it has been hidden behind the
:focus-visiblepseudo-class is now enabled. The
:focus-visiblepseudo-class applies while an element matches the
:focuspseudo-class and the UA (User-Agent) determines via heuristics that the focus should be made evident on the element.
pinch-zoomvalue for the touch-action property is now enabled. The touch-action CSS property sets how an element's region can be manipulated by a touchscreen user. The
pinch-zoomvalue enables multi-finger panning and zooming of the page.
collationproperty can now be specified in the options passed to the
Intl.Collator()constructor. It creates
Intl.Collatorobjects that enable language-sensitive string comparison.
- Fixed a potential page load timeout situation when
WebDriver:ElementClickis called for a link with a target other than
- Using web element references on browsing contexts other than the originating one now correctly returns a "no such element" error instead of a stale element reference error.
Adobe Flash Has Been Removed
Firefox 85 no longer supports Adobe Flash. There is no setting available to re-enable Flash support.
Security Improvements in Firefox 85
- CVE-2021-23953: Cross-origin information leakage via redirected PDF requests.
- CVE-2021-23955: Clickjacking across tabs through misusing
- CVE-2021-23956: The file picker dialog could have been used to disclose a complete directory.
- CVE-2021-23957: Iframe sandbox could have been bypassed on Android via the intent URL scheme.
- CVE-2021-23958: Screen sharing permission leaked across tabs.
- CVE-2021-23959: Cross-Site Scripting in error pages on Firefox for Android.
- CVE-2021-23961: More internal network hosts could have been probed by a malicious webpage.
- CVE-2021-23962: Use-after-poison in
- CVE-2021-23963: Permission prompt inaccessible after asking for additional permissions.
- CVE-2021-23964, 23965: Memory safety bugs fixed in Firefox 85 and Firefox ESR 78.7.
Happy cross-browser testing in Firefox 85!
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