Our Download of the Day is Firefox 12.0 Beta 1.

The latest beta version of Firefox is here, v12.0 beta 1. The latest beta introduces two new features, and a bunch of changes, developer features and some fixes. The two new features include Firefox being capable of updating with less prompts from the UAC (User Account Control), as well as now line numbers being included in the Page Source.

Changes include:

• Line breaks are now supported in the title attribute
• Improvements to "Find in Page" to center search result
• URLs pasted into the download manager window are now automatically downloaded

Developer changes:

• The column-fill CSS property has been implemented
• Support for the text-align-last CSS property has been added
• Experimental support for ECMAScript 6 Map and Set objects have been implemented

Fixes:

OS X: WebGL performance may be degraded on some hardware.

You can download the latest Firefox 12.0 Beta 1 here.