Here is a guide that will show you how to install Mozilla Thunderbird. You can install Mozilla Thunderbird (version 3.1.10) from the Ubuntu Software Center or using a terminal command line.
To install Mozilla Thunderbird using the Ubuntu Software Center open it by clicking on the launcher in the launcher panel or press Alt+F2 and type: software-center.
Search for thunderbird and select the search result (Thunderbird Mail/News). To install extra add-ons click on the More info button and select the add-ons. To install Mozilla Thunderbird and the selected add-ons click on the Apply Changes or the Install button. If you don’t want to install the add-ons just click on the Install button and Mozilla Thunderbird will be installed. To start Mozilla Thunderbird press ALt+F2 and type: thunderbird
To install Mozilla Thunderbird using a terminal window. Press Alt+F2 and type: gnome-terminal and copy+paste the following line:
sudo apt-get install thunderbird
To install Mozilla Thunderbird 3.1.11 pre using the mozilla daily ppa. Open a terminal window (press Alt+F2 and type: gnome-terminal) and copy+paste the following lines:
sudo add-apt-repository ppa:ubuntu-mozilla-daily/ppa
sudo apt-get update
sudo apt-get install thunderbird
To start Mozilla Thunderbird press Alt+F2 and type: thunderbird
To install the add-ons using the terminal window just add them to the install line. If you want to install Mozilla Thunderbird and the dictionary the line will be:
sudo apt-get install thunderbird myspell-en-us
English_american dictionary for myspell:
myspell-en-us
Unity appmenu integration for Thunderbird:
thunderbird-globalmenu
Enigmail extension:
enigmail
Pretty printing of mails:
muttprint
Support for Gnome in Mozilla Thunderbird:
thunderbird-gnome-support
Calendar extension for Thunderbird – Timezone data:
xul-ext-calendar-timezones
Calendar extension for Thuderbird – Google Calendar support:
xul-ext-gdata-provider
Calendar extension for Thunderbird:
xul-ext-lightning
Thunderbird is a lightweight mail/news/RSS client, based on the Mozilla suite. It supports different mail accounts (POP, IMAP, Gmail), has an integrated learning Spam filter, and offers easy organization of mails with tagging and virtual folders.
Mozilla Thunderbird Homepage