Firefox 5 Icon

Firefox 5

Free Download 13.05 MB - Tested clean
Screenshot of Firefox 5 5.0, a browser app for the Windows operating system.
Free Freeware
Windows 10 / 8 / 7 / Vista / XP
Jun 23, 2011
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Fernando Ortega

Legacy version of Firefox before Mozilla started a rapid release schedule

A review of Firefox 5 by Fernando Ortega

Strangely, Mozilla has introduced a new version of Firefox so soon after Firefox 4.0 was released considering how long the 3.x branch was going on. While the reasons why Mozilla Firefox has released version 5.0 so soon after the release of 4.0, we're going to take a guess that it had to do with the Do-Not-Track header, a privacy feature long awaited in a mainstream browser.

Also new in version 5.0 are CSS animations, increased HTTP idle performance, better JavaScript performance and improved standards of HTML5 and more. Firefox 5 also promises to be better in handling memory and network performance.

Additionally, there are several security issues which have been addressed in jumping so far ahead in versioning.

Firefox 5 on 32-bit and 64-bit PCs

This download is licensed as freeware for the Windows (32-bit and 64-bit) operating system on a laptop or desktop PC from internet browsers without restrictions. Firefox 5 5.0.1 is available to all software users as a free download for Windows 10 PCs but also without a hitch on Windows 7 and Windows 8.

Compatibility with this software may vary, but will generally run fine under Microsoft Windows 10, Windows 8, Windows 8.1, Windows 7, Windows Vista and Windows XP on either a 32-bit or 64-bit setup. A separate x64 version may be available from Mozilla.

Filed under:
  1. Firefox 5 Download
  2. Freeware Internet Browsers
  3. Major release: Firefox 5 5.0
Firefox 5 has been picked by our editors as excellent.
Firefox 5 has been tested for viruses and malware.
We have tested Firefox 5 5.0.1 against malware with several different programs. We certify that this program is clean of viruses, malware and trojans.

Screenshots of Firefox 5 (1)

Ranking in
Browser Software
#82 of 86
5 out of 5 based on 1 ratings.

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Download Details

Firefox Setup 5.0.1.exe
System Architecture:
Windows 10 32-bit, Windows 10 64-bit, Windows 8 32-bit, Windows 8 64-bit, Windows 7 32-bit, Windows 7 64-bit
MD5 filehash: