Firefox 158 Adds JPEG XL Support and Produces More Accessible PDFs on Linux

Firefox 158 Adds JPEG XL Support and Produces More Accessible PDFs on Linux

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Mozilla released Firefox 158 on October 13, two weeks after the Nova redesign in Firefox 157.

JPEG XL

Firefox can now display JPEG XL images. JPEG XL offers better compression than JPEG with high quality, supports lossless recompression of existing JPEGs, and handles HDR and transparency. Browser support has been the format’s main obstacle, so this matters for its adoption.

Better PDFs on Linux

As we noted when it entered beta, printing and Save as PDF on Linux and macOS now produce more accessible PDFs, and rendering problems such as missing math symbols are fixed.

Other changes

  • New Tab wallpapers are kept in a library under “Your images” instead of only the latest one
  • Smart Window can suggest form data from your open tabs and saved autofill data, rolling out gradually
  • Scroll positions are no longer rounded to whole pixels, so scrolling is smoother on high-DPI screens and when zoomed
  • Translations add Albanian, Belarusian, and Filipino
  • Web platform: typed arithmetic in CSS calc(), WebAuthn conditional UI on inputs with autocomplete="webauthn", and more

Linux fixes

  • Address bar favicons no longer blend into the highlight colour on Ubuntu’s default theme
  • The Unified Search Button menu no longer underlines the first letter of each engine, which clashed with keyboard shortcuts

There are also security fixes, covered in Mozilla’s advisory for this release. Tarball installs update themselves; Flathub, Snap, and distribution packages follow. Downloads are on our Firefox 158 page, and Firefox 159 is now in beta.

More news

Firefox 157 Brings the Nova Redesign, the Biggest Visual Change in YearsMozilla's Project Nova refreshes the toolbar, sidebar, and menus, adds Compact, Standard, and Touch density modes and new built-in themes, and brings hardware AV1 decoding to WebRTC calls.Firefox 158 Beta Improves Print-to-PDF on Linux With Skia's PDF BackendFirefox 158 entered beta on September 28 with SkPDF for saving and printing to PDF on Linux and macOS, custom New Tab wallpaper libraries, and WebAuthn conditional UI. Release is due October 13.Firefox 156 Brings a PDF Viewer Up to 45 Percent FasterFirefox 156 speeds up the built-in PDF viewer by as much as 45 percent and cuts resource use on large JPEGs, with Thunderbird 156 shipping alongside with custom OAuth for POP3.