Sun. Jan 19th, 2020

Mozilla Firefox 73.0 Beta 4 Released: add custom DNS over HTTPS provider

1 min read

Mozilla Firefox 73.0 Beta 4 has been released. This version can significantly improve audio quality when users play audio at faster or slower speeds. This release contains the MFSA 2020-03 fixes included in the standard and development versions of Firefox Desktop 73.0b2 and later.



  • Added support for setting a default zoom level applicable for all web content, regardless of site. This option is available in about:preferences under “Language and Appearance” and can be scaled up or down from 100% as needed.


  • In addition to Cloudflare (which remains the default when DNS over HTTPS is enabled) and custom DNS over HTTPS provider options, users now have the option of selecting NextDNS as the Firefox DNS over HTTPS resolver via the Network Settings dialog in Preferences.
  • Improved audio quality when playing back audio at a faster or slower speed.
  • Fix for MFSA 2020-03 included in Firefox Desktop and DevEdition 73.0b2 builds and newer.