Upgrade / Install Thunderbird 5 via PPA

Mozilla Thunderbird 5 has released and available for download.

Download it from 
* www.mozilla.org/en-US/thunderbird/download/  


Install Mozilla Thunderbird 5 via PPA


open terminal and paste the following commands

• sudo add-apt-repository ppa:mozillateam/thunderbird-stable
• sudo apt-get update 
• sudo apt-get install thunderbird 

now enjoy with Mozilla Thunderbird 5.