Features of the mozila firefox
Tuesday, June 10, 2008 7:49:28 AM
Users can customize Firefox with extensions and themes. Mozilla maintains an add-on repository at addons.mozilla.org with nearly 2000 add-ons in it as of September 2007.
Firefox provides an environment for web developers in which they can use built-in tools, such as the Error Console or the DOM Inspector, or extensions, such as Firebug.
Although Firefox 2 does not pass the Acid2 standards-compliance test, all releases since Firefox 3.0 Beta 2 do.
Firefox uses a sandbox security model, and limits scripts from accessing data from other web sites based on the same origin policy. It uses SSL/TLS to protect communications with web servers using strong cryptography when using the https protocol. It also provides support for web applications to use smartcards for authentication purposes.
The Mozilla Foundation offers a "bug bounty" to researchers who discover severe security holes in Firefox. Official guidelines for handling security vulnerabilities discourage early disclosure of vulnerabilities so as not to give potential attackers an advantage in creating exploits.
Because Firefox has fewer and less severe publicly known unpatched security vulnerabilities than Internet Explorer (see Comparison of web browsers), improved security is often cited as a reason to switch from Internet Explorer to Firefox. The Washington Post reports that exploit code for critical unpatched security vulnerabilities in Internet Explorer was available for 284 days in 2006. In comparison, exploit code for critical security vulnerabilities in Firefox was available for 9 days before Mozilla shipped a patch to remedy the problem.
A 2006 Symantec study showed that although Firefox had surpassed other browsers in the number of vendor-confirmed vulnerabilities that year through September, these vulnerabilities were patched far more quickly than those found in other browsers. Symantec later clarified their statement, saying that Firefox still had fewer security vulnerabilities than Internet Explorer, as counted by security researchers. As of June 7, 2008, Firefox 2 has three security vulnerabilities unpatched, the most severe of which was rated "less critical" by Secunia. Internet Explorer 7 has ten security vulnerabilities unpatched, the most severe of which was rated "Moderately critical" by Secunia.