This article will show how to remove add-ons, which may be things like extensions, themes, or browser helpers in the Mozilla Firefox web browser.Here is how to remove add-ons from Firefox:1. With Mozilla Firefox open, click the three lines for Menu, found at the top right of the Firefox window. 2. From the drop-down menu, click on Add-ons. 3. Click on either Extensions, Themes or Plugins on the left side depending on the add-on to be removed. 4. Locate the add-on to be removed and click on the three dots to the right of the add-on. 5. Select Remove from the list of options. That's it, you may repeat these same steps to remove any additional add-ons.