It seems that those from Mozilla have progressed in terms of speed, considering that most users Firefox they didn't get used to version 4 well either (Firefox 4, launched with much fanfare in March, after a long succession of beta versions) and it has already been launched Firefox 5 final version. That's right, the browser installation kit can be found at Download currently only on mozzila ftp, to be made public only on June 21, 2011.

What's new in Firefox 5:

• support for CSS animations
• the Do-Not-Track header is easier to identify
• WebGL content no longer loads cross-domain textures
• the setTimeout and setInterval values ​​for background tabs have been changed to 1000ms for better performance
• improved memory, JavaScript, canvas and network performance
• improved support for HTML5, XHR, SMIL, MathML and canvas
• desktop environment integration improvement for Linux users

Download Firefox 5 for Windows

Download Firefox 5 for Linux

Download Firefox 5 for Mac OS X

Before installing Firefox 5, make sure you have everything updated plugins, so that errors do not appear when using the browser.

Note: Support for Firefox 5 can be found here link.