While you can copy and paste plain text into an email message, you can’t do the same thing with complex objects such as animated GIFs. GIFs can add novelty and freshness to email messages because their motion captures people’s attention. Mozilla’s Thunderbird email program gives you the ability to insert inline GIF images using a couple of methods: you can upload them from your computer or tell Thunderbird to use a GIF that resides on the Web. Tips Writer Bio
