Features of Firefox Features of Firefox Here are some of the features that distinguish Mozilla Firefox from other web browsers, such as Internet Explorer. To avoid interface bloat and ship a relatively smaller core customizable to meet individual users' needs, and allow for corporate or institutional extensions to meet their varying policies, Firefox relies on a robust extension system to allow users to modify the browser according to their requirements instead of providing all features in the standard distribution. While Opera and Google Chrome do the same, extensions for these are fewer in number as of late 2013. Internet Explorer also has an
HTTP cookie allow sharing of cookies between servers by default. However, the newer standard, RFC 6265, explicitly allows user agents to implement whichever third-party cookie policy they wish. Most browsers, such as Mozilla Firefox, Internet Explorer, Opera, and Google Chrome, do allow third-party cookies by default, as long as the third-party website has Compact Privacy Policy published. Newer versions of Safari block third-party cookies, and this is planned for Mozilla Firefox as well (initially planned for version 22 but postponed indefinitely). Advertising companies use third-party cookies to track a user across multiple sites. In particular, an advertising company can track a user