
The Best Firefox Yet
With more than 15,000 improvements, Firefox 3 is faster, safer and smarter than ever before.
Security & Privacy
Instant Web Site ID screenshot
Instant Web Site ID
Want to be extra sure about a site’s legitimacy before you make a purchase? Click on a site favicon for an instant identity overview. Another click digs deeper: how many times have you visited? Are your passwords saved? Check up on suspicious sites, avoid Web forgeries and make sure a site is what it claims to be.
Anti-Malware
Firefox 3 protects you from viruses, worms, trojan horses and spyware. If you accidentally access an attack site, you’ll receive a full-sized browser message as a warning. A continuously updated list of attack-sites tells us when to stop you from browsing, so there’s nothing for you to update or maintain.
Anti-Malware screenshot
Anti-Phishing
Shop and do business safely on the Internet. Firefox gets a fresh update of web forgery sites 48 times in a day, so if you try to visit a fraudulent site that’s pretending to be a site you trust (like your bank), a browser message—big as life—will stop you.
Parental Controls
Enforce parental control settings you’ve entered on Windows Vista with Firefox 3—stop unwanted downloads and more. Firefox’s intuitive design keeps you from second-guessing your setup.
Anti-Virus Software
Firefox 3 integrates elegantly with your antivirus software. When you download a file, your computer’s antivirus program automatically checks it to protect you against viruses and other malware, which could otherwise attack your computer. [available in Windows only]
Add-ons
Firefox looks for a secure connection before installing or updating add-ons, 3rd party software, and Personas.
Password Manager
We’ve seamlessly integrated this feature into your surfing experience. Choose to “remember” site passwords without intrusive pop-ups. Now you’ll see the “remember password” notification integrated into your view at the top of the site page.
Password Manager screenshot
Clear Private Data
Clear your private data automatically—with just one click or a keyboard shortcut. Your info is gone for good—on your own computer or the one at your local library. It’s that easy.
Customized Security Settings
Control the level of scrutiny you’d like Firefox to give a site and enter exceptions—sites that don’t need the third degree. Customize settings for passwords, cookies, loading images and installing add-ons for a fully empowered Web experience.
Automated Update
Our open-source security strategy lets us find—and fix—security issues in record time, making Firefox the safest way to surf. Install upgrades when you receive automatic notification or wait until you’re ready.
Pop-Up Blocker
Banish pop-ups (and pop-under windows) from your surfing experience once and for all. Or, find a happy medium—choose to view blocked pop-ups or create an “allow” list of sites whose pop-ups you’re okay with seeing.
soruce : http://www.mozilla.com/en-US/firefox/features/