Download Mozilla Firefox 20.0 Beta

As we are used to from Mozilla, the first beta release of the next version has already appeared shortly after the release of a stable version of the Firefox web browser. In version 20, which if all goes well will be available on April 2, the download screen has been improved, you can indicate per screen whether the privacy mode should be used, the browser will offer to select the default search provider in the awsome bar. if it has been modified by another program. Below is the provisionally incomplete overview of the improvements that we can expect in version 20.

New

• Per-window Private Browsing
• New download experience
• Ability to close hanging plugins, without the browser hanging
• Firefox will offer to reset the Awesomebar search provider, if it has been changed by third-party software or through about:config

Changed

• Continued performance improvements around common browser tasks (page loads, Downloads, shutdownetc.)
• Continued implementation of draft ECMAScript 6 – clear() and Math.imul
• New JavaScript Profiler tool

HTML5

• now supports blend modes
• Various
• getUserMedia implemented for web access to the user’s camera and microphone (with user permission)

Fixed

• Details button on Crash Reporter (793972)
• Unity plugin doesn’t display in HiDPI mode (829284)

Known Issues

• If you try to start Firefox using a locked profile, it will crash (see 573369)
• Mootools 1.2.x incompatible with Firefox 18 and newer.Fixed in Mootools 1.3 and newer (see 789036)
• Some function keys may not work when pressed (see 833719)

The following downloads are available:
Mozilla Firefox 20.0 beta for Windows (English)
Mozilla Firefox 20.0 beta for Linux (English)
Mozilla Firefox 20.0 beta for OS X (English)
Mozilla Firefox 20.0 beta for Windows (English)
Mozilla Firefox 20.0 Beta for Linux (English)
Mozilla Firefox 20.0 Beta for OS X (English)
Mozilla Firefox 20.0 beta for Windows (Frisian)
Mozilla Firefox 20.0 beta for Linux (Frisian)
Mozilla Firefox 20.0 beta for OS X (Frisian)