Firefox Developer Edition

January 16, 2015

Version 37.0a2, first offered to Firefox Developer Edition channel users on January 16, 2015

For more information about Developer Edition please see this MDN article and also this hacks.mozilla.org post.


  • Improved protection against site impersonation via OneCRL centralized certificate revocation


  • Improved certificate and TLS communication security by removing support for DSA

  • Added support for e-mail name constraints in certificates

  • Extended SSL error reporting for reporting non-certificate errors

  • TLS False Start optimization now requires a cipher suite using AEAD construction


Web Platform

  • WebSocket now available in Web Workers

  • Added support for CSS display:contents

  • IndexedDB now accessible from worker threads

  • <meta name="referrer"> implemented for more privacy. Allows to control the content of the HTTP referer header.

All Firefox Developer Edition downloads