If you would like to add an add-on select the plus and then add what you would like to add. In the example below I show you how to add DropBox as well as how to remove an add-on.
- To remove an add-on open up Add-ons in gmail and select the add-on. You will then need to select the three dots (options) and remove the Add-on.
Embedded below is a GIF followed by a 1 minute and 31 second YouTube tutorial.