Firefox Beta Notes

Version 37.0beta, first offered to Beta channel users on February 26, 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.

What’s New

  • New

    Heartbeat user rating system - your feedback about Firefox

  • New

    Bing search now uses HTTPS for secure searching

  • New

    New preferences implementation enabled for the first half of the beta cycle

  • New

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

  • New

    Improved protection against site impersonation via OneCRL centralized certificate revocation

  • 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

    Added support for e-mail name constraints in certificates

  • Changed

    Improved certificate and TLS communication security by removing support for DSA

  • 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

    WebSocket now available in Web Workers

  • 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