Otherwise (when you chose Run), Windows 7 will automatically delete this file from your temporary directory.
#MOZILLA THUNDERBIRD 64 INSTALL#
When it opens, click on the Windows download button, as shown on the screenshot below:.If you need to bring some data from your release profile into the beta profile, consult the beta support article.
On first use Thunderbird will create the default-beta profile, and it will prompt you to define your accounts. Click on this link to open it in a new window (so you can get back to this tutorial as needed). Start the beta version of Thunderbird (with release version not running) and it will use the default-beta profile.