New support for web worker threads
Tab switching feature is now remove due to the feedback from users
Improved speculating parsing engine for faster content rendering and some improvements in Gecko engine.
When you look at the fresh page while you run your FF 3.1 beta you may wonder whether it is a welcome screen for Firefox or an Arcade Game! No confusion necessary, they have revamped the welcome screen too with a new robot.
One caution for intrepid testers is that some of your extensions will not work in this beta release; make sure to tweak the config file using the following steps.
about:config into Firefox’s address bar and click the “I’ll be careful, I promise!” button.
Right-click anywhere. Choose New>Boolean. Make the name of your new config value
extensions.checkCompatibility and set it to
Make another new boolean pair called
extensions.checkUpdateSecurity and set the value to
Horray! Your Firefox 3.1 B2 is now extensions compatible. Enjoy your tweaking!
For other great Firefox features and abilities, you can play Free Nes Games on Firefox