Click the menu button, click Add-ons and Themes, and select Extensions.
Scroll through the list of extensions.
Click the 3-dot icon for the extension you wish to remove and select Remove.
You can reinstall it from this page here.
Learn how to uninstall/remove the add-on in Mozilla Firefox
Click the menu button, click Add-ons and Themes, and select Extensions.
Scroll through the list of extensions.
Click the 3-dot icon for the extension you wish to remove and select Remove.
You can reinstall it from this page here.