This extension strips URLDefense's tracking from GMail and Outlook. There are security benefits to after-the-fact click tracking, but I personally don't want reveal which links I click on and when or share awkward links when I forward emails.

Obviously use this at your own risk.

This extension also intercepts requests to urldefense and redirects to the original URL.

Google Chrome

1. Download this repo as a ZIP file from GitHub.
2. Unzip the file and you should have a folder named unURLDefense-master.
3. In Chrome/Edge go to the extensions page (chrome:https://extensions or edge:https://extensions).
4. Enable Developer Mode.
5. Drag the unURLDefense-master folder anywhere on the page to import it. Or click the "Load unpacked" button and select the folder.

Firefox

1. Download this repo as a ZIP file from GitHub.
2. Unzip the file and you should have a folder named unURLDefense-master.
3. Go to about:debugging#/runtime/this-firefox and click the "Load temporary add-on" button to load the manifest.json file.