Firefox Developer Edition
Release Notes

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 Developer Edition — English (US)

Your system may not meet the requirements for Firefox, but you can try one of these versions:

Firefox Developer Edition — English (US)

Your system doesn't meet the requirements to run Firefox.

Your system doesn't meet the requirements to run Firefox.

Please follow these instructions to install Firefox.

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37.0a2
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.

New

  • Improved protection against site impersonation via OneCRL centralized certificate revocation

Changed

  • 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

Developer

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.

Get the most recent version

Firefox Developer Edition — English (US)

Your system may not meet the requirements for Firefox, but you can try one of these versions:

Firefox Developer Edition — English (US)

Your system doesn't meet the requirements to run Firefox.

Your system doesn't meet the requirements to run Firefox.

Please follow these instructions to install Firefox.

Firefox Privacy Notice
All Firefox Developer Edition downloads