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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.

52.0a2

Firefox Developer Edition

November 18, 2016

Version 52.0a2, first offered to Firefox Developer Edition channel users on November 18, 2016

For more information about Developer Edition please see this MDN article.

New

Changed

  • Removed NPAPI support for plugins other than Flash - Silverlight, Java, Acrobat and the like are no longer supported.

  • Removed Battery Status API to reduce fingerprinting of users by trackers

Developer

Developer Information