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.
Compatibility and License
Firefox 5 is provided under a freeware license on Windows from web browsers with no restrictions on usage. Download and installation of this PC software is free and 5.0.1 is the latest version last time we checked.
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