Firefox Portable

Firefox Portable 13.0

Search engine that is fast and secure

PRO: Leaves no trace on the computer used one removed
CON: Start-up can be a little slow
Vote: 6.1/10 (112 votes) Platform: Windows

Firefox Aurora a2 29.0

Version release of Mozilla's flagship web browser

PRO: Gives an overview of features to be included in the newest version of Firefox
CON: Unstable
Vote: 7.4/10 (300 votes) Platform: Windows

Firefox 2.0.0.20

Updated version of the search engine that is faster

PRO: More tab options
CON: Many extensions not compatible with this release
Vote: 5.8/10 (177 votes) Platform: Windows

Firefox beta_51.0

High-performance free and open source web browser

Firefox Browser for Android is the mobile version of the very popular Firefox desktop browser …

Vote: 4.4/5 (102 votes) Platform: Android

Pale Moon Portable 12.1

An accessible and streamlined browser for mobile devices

PRO: Support for Firefox themes and add-ons
CON: Some features have been left out
Vote: 7.5/10 (34 votes) Platform: Windows

Firefox 64-bit Nightly a1 14.0

Internet browser for 64-bit systems with private mode and optional add ons

PRO: Separate address/search bars improves browser security.
CON: Some issues with browser freezing
Vote: 6.8/10 (355 votes) Platform: Windows

Firefox Nightly Beta 1 28.0

Updated search engine of the original that is faster

PRO: Useful home screen
CON: Have to set as default browser to use Modern UI version
Vote: 7.2/10 (527 votes) Platform: Windows

Mozilla Firefox Beta 9 40.0

Test version of the popular browser that lets you try new features

PRO: Option to only load secured items on a page
CON: Slower scrolling in Gmail
Vote: 7.5/10 (216 votes) Platform: Windows

Mozilla Firefox 31.0

Firefox is one of the most widely used and trusted modern...

Firefox is one of the most widely used and trusted modern web browsers, supporting a host …

PRO: Silent updates for Windows users
CON: High CPU usage with Flash videos
Vote: 0.0/10 (0 votes) Platform: Windows

Mozilla Firefox 4.42

Popular and widely used internet browser software

… Mozilla Firefox is a feature-rich and highly customizable web browser that’s user-friendly enough …

PRO: The auto-complete feature
CON: Slow to start
Vote: 7.1/10 (19303 votes) Platform: Windows