Mozilla Firefox supports an Extension button on the toolbar, but it must first be enabled. We explain how to do it and add the button.

Learn how to use the Avast browser extension on Chrome, Edge, and Firefox. Find if a website is safe to visit or not using this extension.

The keyconfig Firefox extension is made specifically to create keyboard shortcuts for anything in Firefox, but after a bit of trying, I wasn't able to get it to open the Add-ons window.