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Bookmark or Share- Install an older version of Firefox | Firefox Help - Mozilla SupportTable of Contents. Unwanted features in the new Firefox version. Installing a previous version doesn't fix most problems. I still want to downgrade — where can I get the previous version? Alternatives to downgrading. Help us make Firefox better. Unwanted features in the new Firefox version.
- Firefox 4 - WikipediaMozilla Firefox 4 is a version of the Firefox web browser, released on March 22, 2011. The first beta was made available on July 6, 2010; Release Candidate 2 (a base for the final version) was released on March 18, 2011.
- Firefox 4.0 System Requirements - MozillaPlease note that while the 32-bit and 64-bit versions of Windows Vista and Windows 7 can be used to run Firefox 4, only 32-bit builds of Firefox 4 are supported at this time. Recommended Hardware. Pentium 4 or newer processor that supports SSE2; 512MB of RAM; 200MB of hard drive space; Mac Operating Systems. Mac OS X 10.5; Mac OS X 10.6 ...
- Firefox 4 Release Notes - MozillaFirefox 4 is based on the Gecko 2.0 Web platform. This release features JavaScript execution speeds up to six times faster than the previous version, new capabilities for Web Developers and Add-on Developers such as hardware accelerated graphics and HTML5 technologies, and a completely revised user interface.
- Firefox 4 downloaded 5 million times in first day - CNN.comFirefox 4, the latest version of Mozilla's free, open-source Web browser, was downloaded around 5 million times in its first 24 hours.
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