For more information, please visit the following pages:

• Thunderbird
• Mozilla Foundation
• Gecko

Latest user agents:

• Mozilla/5.0 (Windows NT 6.1; WOW64; rv:7.0.1) Gecko/20110929 Thunderbird/7.0.1
• Mozilla/5.0 (Windows NT 6.2; rv:7.0.1) Gecko/20110929 Thunderbird/7.0.1