Follow the procedure below to download and install Mozilla Thunderbird.
Launch Your Current Browser
Run Firefox, Internet Explorer, or your current browser:

To learn about Firefox, PCC's recommended web browser, read Installing and Configuring Firefox.
Browse to Mozilla's Thunderbird Homepage

Enter the web site address, http://www.getthunderbird.com, into the address bar of your web browser.
Click the "Download Now" or "Free Download" Link
You will notice that the Mozilla web-site has recognized what kind of computer you are using and what language your computer speaks. Click the link shown below to begin the download.

Accept and/or "Run" the Download
Depending on the setup and configuration of your current browser, you may be asked questions about the download, such as the following:

Whatever your computer asks you, answer that you accept the download (of Thunderbird Setup.exe) and you would like to "Save" or "Run" it. If you are not allowed to run the download automatically, choose to save it to the desktop instead.
Wait For Download to Finish
On a high-speed internet connection, the download will take only a few minutes.
Run the Installation Program
After the download is finished, you may need to click again to open or run the install program. Look for the "Thunderbird Setup.exe" program on your desktop. Or, your browser may offer to run the install program for you:

Windows may warn you that the file you are running is an executable:

You may also notice an "Extracting" dialogue message, which is normal.

Begin the Thunderbird Install Wizard
The Thunderbird installation wizard will run automatically:

Click "Next."
Click "I Accept" and "Next"

Click the radio button next to "I Accept" only if you agree to the Thunderbird free software license agreement. Then click "Next."
Agree to a "Standard" Installation

Final Confirmation to Install Software

The program will take a few minutes to install.

Click to Finish

Notice that you can launch Thunderbird and immediately start using it by checking the checkbox shown above.
Thunderbird Has Been Added to Your Desktop
