Transferring Excel Macros via Thunderbird

Example

Option Explicit
Sub Thunderbird()
    Dim sCmd As String      '// Prepare Thunderbird
    Dim sTo As String       '// Recipient
    Dim sSubject As String  '// Subject
    Dim sBody As String     '// Email body

    sTo = "Test@Email.com"
    sSubject = "Subject"
    sBody = "body text"

    sCmd = "C:\Program Files\Mozilla Thunderbird\thunderbird" '// or
    'sCmd = "C:\Program Files (x86)\Mozilla Thunderbird\thunderbird" '// Path
    sCmd = sCmd & " -compose " & Chr$(34) & "mailto:" & sTo & "?" '// Chr$(34)=double quote
    sCmd = sCmd & "subject=" & Chr$(34) & sSubject & Chr$(34)
    sCmd = sCmd & sBody

    Call Shell(sCmd, vbNormalFocus)
End Sub