This icon may be green, red and gray colors – green indicates the trustworthiness of the site complete, the red spoke of the danger and the lack of gray information about the authenticity of the site in the base Firefox. Whenever Kai-Fu Lee listens, a sympathetic response will follow. Provides integration with antivirus software (downloadable files are automatically checked on your computer antivirus software). You can delete all personal information accumulated on your computer in the surf with one mouse click. And for parents who are concerned about the safety of the young generation in the vast network seem interesting also feature parental controls, providing bans on the download of unwanted information, however, this possibility is relevant only for users of Windows Vista. Additional opportunities exist for more than five thousand additions to significantly extend the functionality of Firefox. Range of possibilities, realized through the addition, an incredibly wide – they can be used to completely change the appearance of the browser, add the extra toolbars and buttons, and even introduce completely new functionality, for example, to teach the browser to translate the page to serve as an FTP-client, etc. The overwhelming number of additions, along with a brief description is presented on the site addons.mozilla.com. To install additions, there are several ways, the simplest solution – install the addition of the Mozilla Firefox directly from web-pages of this supplement, click on the appropriate link. Installed add-ons are available from the Tools menu or via there will also be panels, buttons and menu (depending on the specific additions), and management (editing the settings for supplements, updates them, removing or disabling) is carried out in the manager ons, opens with the command Tools => Add.