• Tab multi-select
• A new tab page
• Add-ons will get standardized toolbar support
• File upload indicator
• Home button will be replaced with a Home app tab
• In-browser preview for files such as PDF or MP3
• Taskbar web apps
• Identity manager
• Easy access to social media accounts for services such as Facebook and Twitter
下载:Firefox 5.0 Beta for Windows下载:Firefox 5.0 Beta for Linux (x86, x64)下载:Firefox 5.0 Beta for Mac