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Release Notes tell you what’s new in Firefox. As always, we welcome your feedback. You can also file a bug in Bugzilla or see the system requirements of this release.

Firefox Beta — English (US)

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58.0beta

Firefox for Android Beta

November 15, 2017

Version 58.0beta, first offered to Beta channel users on November 15, 2017

New

  • Added full screen bookmark management with folder support

  • Added support for FLAC (Free Lossless Audio Codec) playback

  • Added Bengali from Bangladesh (bn-BD) and Nepali (ne-NP) locales

  • Added support for progressive web apps

  • Optimize page load by caching JavaScript internal representation

Changed

  • Removed the Firefox Search widget from home screen

  • Updated the Safe Browsing protocol to version 4