Download Firefox 4.0 Beta 5

Firefox 4.0 Beta 5

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By Mozilla Organization  (Open Source)
Latest Version
Firefox 38.0 Beta 1

- 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.