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Powered by a new, cutting-edge engine, Firefox has doubled its speed from last year. Because the Internet waits for no one.

Lean, mean speed machine

Firefox’s new engine uses 30% less memory than Chrome, so other programs won’t slow down during browsing. Now that’s a win-win.

Beautiful, intelligent design

Hello, gorgeous! Firefox’s sleek, new look comes loaded with intuitive features like in-browser screenshots and more.

New Tab

Search across multiple sites, view your top pages and discover new content.

Powerful privacy

You’re in control of your online information. Use Firefox Private Browsing to block ads with trackers for extra peace of mind… and pages that load up to 44% faster.

Browse for good

Firefox is backed by the non-profit Mozilla, who keeps the Internet healthier through programs that support tech education for girls, create trust around factual news, bring civility to the comments section and more.

Library

Enjoy everything you’ve saved to Firefox while browsing in one, easy place.

Extensions

Personalize Firefox with your favorite extras that help you do you.

Mobile Browsing

Access your bookmarks, open tabs and passwords across all your devices.

Shape Up Your Floats

CSS Shapes lets a floated element sculpt the flow of content around it beyond the classic rectangular bounding box we’ve been constrained to. For instance, in the above screenshot and linked demo, the text is wrapping to the shape of the grapes vs the image’s border. There are properties for basic shapes all the way up to complex polygons.

You can learn more in Josh Marinacci’s post on the new CSS Shapes tooling from yesterday.

Variable Fonts Are Here

No punny title, I’m just excited! OpenType Font Variations allow a single font file to contain multiple instances of the same font, encoding the differences between instances. In addition to being in one file, font creators can expose any number of variation axes that give developers fine-grained control on how a font is rendered. These can be standard variations like font weight (font weight 536 looks right? no problem!) or things that were never previously available via CSS (x-height! serif-size!). In addition to the candy-store possibilities for typography nerds, being able to serve a single file with multiple variants is a major page weight savings. Dan Callahan goes much deeper on the grooviness to be found and how Firefox makes it easy to tweak these new custom values.

Devtools Commands

The Developer Toolbar was an alternate command repl input in the Firefox Developer tools, apart from the Web Console. I say “was” because as of Firefox 62, it has been removed. It was always a bit hard to find and not as well-advertised as it could be, but did encapsulate some powerful commands. Most of these commands have been progressively migrated elsewhere in the devtools, and this is wrapped up in Firefox 62, so we’ve removed the toolbar altogether.

One of the last commands to be migrated is screenshot, which is a power-user version of the “take a screenshot” button available in the devtools UI. The screenshot command is now available as :screenshot in the Web Console. For example, have you ever needed a high-res screenshot of a page for print? You can specify a higher pixel density for a screenshot via the command: :screenshot --dpr 4

There are a bunch of other options as well, such as specifying output filenames, capture delays, and selector-cropped screenshots. Eric Meyer wrote a great primer on the power of :screenshot on his blog, and it will change your page capture game.

What's New:

The latest version of Mozilla’s Firefox browser, out now for Windows, macOS, Linux and Android, now blocks third-party tracking cookies and cryptominers by default.

New

  • Firefox users can now import profile data from Edgium on Windows and Mac. Bug 1605491
  • A New Container Tab menu can now be opened with right click on the new tab button. In addition, an option to require a container tab to be selected when the new tab button is clicked is available. Bug 1606265

Fixed

  • Fix for MFSA 2020-03 included in 2020-01-08 builds and newer. Bug 1607443.

Changed

  • The OS compositor has been enabled for macOS when WebRender is enabled. Bug 1592016
  • On Windows, Ctrl+I can now be used to open the Page Info window instead of opening the Bookmarks sidebar. Ctrl+B still opens the Bookmarks sidebar.
  • DNS over HTTPS (with Cloudflare as the DNS resolver) will be rolled out for users, turning the option on by default for users in the United States. For an alternate DNS service, users can select NextDNS via the Network Settings dialog in Preferences.

Developer

  • Service Workers and Web App Manifests are easier to inspect in the Developer Tools new Application panel, which also integrates into the newly landed Service Worker debugging capabilities. Bug 1609356