As we all know, Mozilla has recently released the alpha 2 version of the latest Mozilla Firefox 3.1. Some changes from Mozilla Firefox 3 to Mozilla Firefox 3.1 alpha 2:

Changes in alpha 1:

• Web standards improvements in the Gecko layout engine
• Text API for the <canvas> element
• Support for using border images
• Support for JavaScript query selectors
• Several improvements to the Smart Location Bar
• A new tab switching behaviour

Changes in alpha 2:

• Support for the HTML 5 <video> element
• Initial support for web worker threads
• You can now drag and drop tabs between browser windows
• Ability to make use of Aero "Glass" in XUL
• Support for CSS 2.1 properties: ::before and ::after, and white-space:pre-line
• Support for CSS 3 properties: -moz-border-image, word-wrap: break-word, text-shadow, box-shadow and column-rule
• Performance improvements and new preference values for color management profile support

The new CTRL+Tab switching behaviour was introduced in alpha 1. This feature will bring up a filmstrip view of your recently visited tabs. Pressing CTRL+Tab will cycles you through the thumbnails of the websites that you’ve visited in order.

Somehow, I don’t really like the new CTRL+Tab feature. I’m very comfortable with the old method (pressing CTRL+Tab opens the next tab).

To disable the new CTRL+Tab feature, type about:config in Firefox address bar. Skip the warning message. Type ‘browser.ctrlTab.mostRecentlyUsed’ in fiter, and change the value of ‘browser.ctrlTab.mostRecentlyUsed’ to ‘false’ (1). Restart your Firefox to see the changes.

[Firefox 3.1 alpha 2]