Firefox Notes

Version 37.0, first offered to Release channel users on March 31, 2015

Check out "What’s New" and "Known Issues" for this version of Firefox below. As always, you’re encouraged to tell us what you think, or file a bug in Bugzilla. If interested, please see the complete list of changes in this release.

We'd also like to extend a special thank you to all of the new Mozillians who contributed to this release of Firefox!

What’s New

  • New

    Heartbeat user rating system - your feedback about Firefox

  • New

    Yandex set as default search provider for the Turkish locale

  • New

    Bing search now uses HTTPS for secure searching

  • New

    Improved protection against site impersonation via OneCRL centralized certificate revocation

  • New

    Opportunistically encrypt HTTP traffic where the server supports HTTP/2 AltSvc

  • Changed

    Disabled insecure TLS version fallback for site security

  • Changed

    Extended SSL error reporting for reporting non-certificate errors

  • Changed

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

  • Changed

    Improved certificate and TLS communication security by removing support for DSA

  • Changed

    Improved performance of WebGL rendering on Windows

  • HTML5

    Implemented a subset of the Media Source Extensions (MSE) API to allow native HTML5 playback on YouTube

  • HTML5

    Added support for CSS display:contents

  • HTML5

    IndexedDB now accessible from worker threads

  • HTML5

    New SDP/JSEP implementation in WebRTC

  • Developer

    Debug tabs opened in Chrome Desktop, Chrome for Android, and Safari for iOS

  • Developer

    New Inspector animations panel to control element animations

  • Developer

    New Security Panel included in Network Panel

  • Developer

    Debugger panel support for chrome:// and about:// URIs

  • Developer

    Added logging of weak ciphers to the web console