Firefox 3.5 Date added: June, 30th 2009 - (Open Source)

What's new in this version:

# Use the new Private Browsing Mode and the updated Clear Recent History function (in the Tools menu) to keep your browsing habits a secret.
# Tear tabs off the tab bar to create new windows, and drag and drop them from one Firefox window to another.
# Watch a video in your browser without needing any plugins or external media players.
# Control the Smart Location Bar results with special characters.