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Firefox 103 Update Brings Performance Boost for Macs With 120Hz+ Displays

Firefox 103 Update Brings Performance Boost for Macs With 120Hz+ Displays

Mozilla’s new version of Firefox (version 103) includes performance boosts that promise improved browsing performance on displays running at 120Hz and higher refresh rates, including 14-inch and 16-inch MacBook Pro models with ProMotion displays.

Apple’s recently redesigned MacBook Pro models with M1 Pro and M1 Max chips boast Liquid Retina XDR displays with ProMotion technology for adaptive refresh rates ranging from 24Hz to 120Hz.

New Firefox 103 Features

  • Improved responsiveness on macOS during periods of high CPU load by switching to a modern lock API.
  • Do you always forget something? Required fields are now highlighted in PDF forms.
  • Improved performance on high-refresh rate monitors (120Hz+).
  • Enjoying Picture-in-Picture subtitles feature? It just got better: you can now change subtitles font size directly from the PiP window. Additionally, PiP subtitles are now available at Funimation, Dailymotion, Tubi, Hotstar, and SonyLIV.
  • Buttons in the Tabs toolbar can now be reached with Tab, Shift+Tab, and Arrow keys. View this article for additional details.
  • Windows’ “Make text bigger” accessibility setting now affects all the UI and content pages, rather than only applying to system font sizes.
  • Rejoice! You can now conveniently access Firefox, which will now be pinned to the Windows taskbar during installation on Windows 10 and 11. (This will also allow for Firefox to be launched quicker after installing.)

Fixed Firefox 103 Features

  • Non-breaking spaces are now preserved—preventing automatic line breaks—when copying text from a form control.
  • Fixed WebGL performance issues on NVIDIA binary drivers via DMA-Buf on Linux.
  • Fixed an issue in which Firefox startup could be significantly slowed down by the processing of Web content local storage. This had the greatest impact on users with platter hard drives and significant local storage.
  • Various security fixes.

Changed Firefox 103 Features

  • Removed a configuration option to allow SHA-1 signatures in certificates: SHA-1 signatures in certificates—long since determined to no longer be secure enough—are now not supported.

Firefox 103 for macOS is available now from the Mozilla website.