Gecko User Agent Strings

From MDC

List of user agents released by Netscape and AOL based upon Gecko™.

Appropriate use

We do not recommend using User Agent strings as your primary means of browser detection. See Browser Detection and Cross Browser Support for an in depth look at various approaches to browser detection with recommendations.

In particular, we recommend only using User Agent string based detection for server side browser detection. If your existing client side browser detection code uses User Agent strings, you can simply search for the string "Gecko" in the User Agent in order to detect any Gecko based browser.

For all Gecko detection issues which deal with specific bug fixes or which require knowledge of specific vendor strings or build dates, use the navigator object.

Netscape Gecko User Agent String Reference

See mozilla.org's user-agent strings reference for the specific Platform, Security, OS-or-CPU and Localization values.

• Mozilla/5.0 (Platform; Security; OS-or-CPU; Localization; rv:1.4) Gecko/20030624 Netscape/7.1 (ax)
• Mozilla/5.0 (Platform; Security; OS-or-CPU; Localization; rv:1.0.2) Gecko/20030208 Netscape/7.02
• Mozilla/5.0 (Platform; Security; OS-or-CPU; Localization; rv:1.0.2) Gecko/20021120 Netscape/7.01
• Mozilla/5.0 (Platform; Security; OS-or-CPU; Localization; rv:1.0.1) Gecko/20020823 Netscape/7.0
• Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en-US; rv:1.0.1) Gecko/20020730 AOL/7.0
• Mozilla/5.0 (Platform; Security; OS-or-CPU; Localization; rv:1.0rc2) Gecko/20020512 Netscape/7.0b1
• Mozilla/5.0 (Platform; Security; OS-or-CPU; Localization; rv:0.9.4.2) Gecko/20020220 CS 2000 7.0/7.0
  • Mozilla/5.0 (Windows; U; Win98; en-US; rv:0.9.4.2) Gecko/20020502 CS 2000 7.0/7.0
• Mozilla/5.0 (Platform; Security; OS-or-CPU; Localization; rv:0.9.4.1) Gecko/20020508 Netscape6/6.2.3
• Mozilla/5.0 (Platform; Security; OS-or-CPU; Localization; rv:0.9.4.1) Gecko/20020314 Netscape6/6.2.2
• Mozilla/5.0 (Platform; Security; OS-or-CPU; Localization; rv:0.9.4) Gecko/20011128 Netscape6/6.2.1
• Mozilla/5.0 (Platform; Security; OS-or-CPU; Localization; rv:0.9.2) Gecko/20010726 Netscape6/6.1

For more detailed information regarding Netscape and Mozilla releases, please see the mozilla.org cvstags reference.