SMSalias MozClient allows you to send SMS messages.
SMSalias is a Firefox/Thunferbird extension that enables you to send SMS messages directly from Browser/email application.
SMSalias functions exactly the same as sending an email. The user receive SMS replies back from messages sent from any mobile phone, and it will appear instantly as emails in the inbox.
You need to register for a free test account to http://www.smsalias.com (additional sms messages can be purchased directly online).
· Thunderbird 0.5 - 1.6 ALL
SMSalias provides a real bi-directional service through SMS sending and receiving directly from the PC.