版本历史 Firefox 4.0 (Beta 5)
- Firefox 4 Beta 5 is available in 39 languages.
- Support for the new proposed Audio Data API
- Direct2D Hardware Acceleration is now on by default for Windows 7 users
- Firefox button has a new look for Windows Vista and Windows 7 users
- Support for HSTS security protocol allowing sites to insist that they only be loaded over SSL.