For more information, please visit the following pages:

• Thunderbird
• Mozilla Foundation
• Gecko

Latest user agents:

• Mozilla/5.0 (Windows; U; Windows NT 5.1; ru; rv:1.9.2.28) Gecko/20120306 Thunderbird/3.1.20
• Mozilla/5.0 (Windows; U; Windows NT 5.1; ru; rv:1.9.2.15) Gecko/20110303 Thunderbird/3.1.9
• Mozilla/5.0 (Windows; U; Windows NT 6.1; ru; rv:1.9.2.28) Gecko/20120306 Thunderbird/3.1.20
• Mozilla/5.0 (Windows; U; Windows NT 5.1; fr; rv:1.9.2.28) Gecko/20120306 Thunderbird/3.1.20
• Mozilla/5.0 (Windows; U; Windows NT 5.1; af; rv:1.9.2.28) Gecko/20120306 Thunderbird/3.1.20
• Mozilla/5.0 (Windows; U; Windows NT 6.1; en-GB; rv:1.9.2.14) Gecko/20110221 Thunderbird/3.1.8
• Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10.5; en-US; rv:1.9.2.17) Gecko/20110414 Thunderbird/3.1.10
• Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.2.8) Gecko/20100802 Thunderbird/3.1.2