Faster, Safer, Smarter, Better, The Fastest Firefox Yet. Firefox 3.5.3 is now available for Windows, it is strongly recommended that all Firefox 3.5 users upgrade to this latest release. Things move quickly online, and they’ve beefed up the engine that runs Firefox to make sure you can keep up: Firefox 3.5 is more than twice as fast as Firefox 3, and ten times as fast as Firefox 2. As a result, Web applications like email, photo sites and your favorite social networks will feel snappier and more responsive.
Top Features

• Private Browsing -new Surf the Web without leaving a single trace.
• Password Manager – Remember site passwords without ever seeing a pop-up.
• Awesome Bar – improved Find the sites you love in seconds (and without having to remember clunky URLs).
• Super Speed – new View Web pages way faster, using less of your computer’s memory.
• Anti-Phishing & Anti-Malware – improved Enjoy the most advanced protection against online bad guys.
• Session Restore – improved Unexpected shutdown? Go back to exactly where you left off.
• One-Click Bookmarking – Bookmark, search and organize Web sites quickly and easily.
• Easy Customization – improved Thousands of add-ons give you the freedom to make your browser your own.
• Tabs – improved Do more at once with tabs you can organize with the drag of a mouse.
• Instant Web Site ID – Avoid online scams, unsafe transactions and forgeries with simple site identity.

Supports :

• Windows 2000
• Windows XP
• Windows Server 2003
• Windows Vista

:Firefox 3.5.5 fixes the following issues:

• Several stability issues.