How to install Thunderbird in Ubuntu 7.04

Go to Applications > Internet > Firefox Web Browser

Enter the Url http://www.mozilla.com/en-US/thunderbird/ and download the ThunderBird tar file.

Go to Applications > Accessories > Terminal

Browse to the folder where the tar file was downloaded and Install it using the command
sudo tar -C  /opt  -zxvf   ~/Desktop/thunderbird-*

To create a symbolic link, enter the following command.
sudo ln -s /opt/thunderbird /usr/local/bin/thunderbird

To create a menu entry, enter the following command at the terminal.
sudo gedit /usr/share/applications/ThunderBird.desktop

This opens ThunderBird.desktop file in the editor. Copy and paste the given code and save.

[Desktop Entry]
    Encoding=UTF-8
    Name=Thunderbird
    Comment=Thunderbird Mail Client
    Exec=thunderbird
    Icon=/opt/thunderbird/icons/mozicon16.xpm
    StartupNotify=true
    Terminal=false

To start Thunderbird, go to Applications > Internet > Thunderbird Mail

Configure the Thunderbird settings and enjoy using Thunderbird!!!