Free Download Mozilla Firefox Portable 20.0.1

Mozilla Firefox includes pop-up blocking, tab-browsing, integrated Google search, simplified privacy controls, a streamlined browser window that shows you more of the page than any other browser and a number of additional features that work with you to help you get the most out of your time online.

What' s New?:
Performance Enhancements: Faster startup time on Mac, Windows, and Linux

Optimized Memory Use:
Improved memory management: For many users, memory use is reduced by 30 percent or more, responsiveness is enhanced
The JavaScript garbage collector runs frequently to free up more memory when Firefox is idle