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⇱ Firefox 137 Beta Now Available With VA-API Accelerated H.265/HEVC On Linux - Phoronix


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Firefox 137 Beta Now Available With VA-API Accelerated H.265/HEVC On Linux

Written by Michael Larabel in Mozilla on 4 March 2025 at 11:51 AM EST. 17 Comments
With Firefox 136 released, Mozilla has promoted Firefox 137 to its beta phase.

Most exciting for Linux users with today's Firefox 137 Beta release is the previously reported news of HEVC/H.265 video playback within Firefox using VA-API. HEVC VA-API support is enabled for Firefox 137 Linux builds to provide a better GPU-accelerated video playback experience on the Linux desktop with the Video Acceleration API being supported across multiple drivers / GPU vendors.

👁 Firefox 137 Beta


HEVC VA-API playback on Linux is the most notable Firefox 137.0 beta change but there is also other changes like Firefox now identifying all links within PDFs and turning them into hyperlinks, font metadata being displayed as part of the Firefox Inspector's "Fonts" panel, SVG support improvements, and support for the CSS hyphenate-limit-chars property.

Downloads and more details on today's Firefox 137 beta release via Mozilla.org.

Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.