By downloading the “Display Contact Photo” extension from Thunderbird, you can now view Gravatars, creating a personalized touch to all your email messages:
How to Install
To set this up, first follow the download and installation directions found on the extension page above.
Then, to specifically enable Gravatars, follow these steps:
1. Go to Tools > Add-ons > Extensions. Click “Options.”
2. Open the “Remote photos” tab and click “enable Gravatars.”
3. Go to the “General Settings” tab and in the “Choose a default photo” drop-down menu, select “Gravatar.” Click “OK.”
4. You’re all set. Enjoy!