How do I download the WiseStamp extension? Once you’ve created your signature you need to download the WiseStamp extension to add it to your web based email programs. Select your browser below to learn how to download the extension. Extension for Chrome Extension for FireFox Extension for Safari Updated on May 15, 2017 Tagged: downloadextensionhow to downloadWiseStamp Was this article helpful? Yes No Related Articles WiseStamp For Outlook How do I add my signature to my email? How safe is WiseStamp? Supported Email Programs Supported Browsers I’m hesitant to sign up, what if I don’t like it?