If you were looking to remove a WordPress plugin or a Firefox extension, then you would open the corresponding program, search for the plugin, and remove it. Take a look at the list that is presented to you to see if the Todoist plugin is among them. If so, you can remove it by checking the box next to the plugin and then hitting the “Remove” button. Note that checking a box and then pressing the “OK” button does nothing. Open Outlook on your desktop and go to the “File” tab. Go to “Options” and click on it. There is a “Plugins” section on the left where you can choose “COM Plugins”. Select it and press the “Go” button. 7 The easiest solution is often the best.