The main features of the browser:

Pop-Up Blocker ( born pop-up)
support for the tabs (English tabbed browsing) ( multiple pages in one window )
Built-in search bar in search engines and dictionaries
so -called " Live Bookmarks " ( English Live bookmarks) - a mechanism for integrating RSS- flows
ample opportunity to configure the behavior and appearance
Support for multiple extensions
built-in tools for web developer
automatic updates of both the browser and its extensions ( version 1.5)
map of content at once (makes it comfortable to continue surfing even with incomplete page loads, especially when a slow connection and a large number of embedded objects )

New features:
Support for HTML 5 audio and video elements
New supported CSS features
New javascript function
Support for private browsing
Changes in the security Firefox 3.5
Monitoring WiFi access points
Improved control over safety
Accelerated performance javascript
Accelerated rendering / drawing pages
And the other improvements and new features

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