Mozilla Firefox browser is the first inclination of web developers while choosing web browser. Firefox add-ons/extensions are simply blessings for web developers when it comes to run their completed program on the web to check front end visibility. Below I have listed out few Firefox add-ons which every web developer should use while custom web application development. I have worked with many developers and all of them are using these extensions in their regular web development projects.
You must have below Firefox Add-ons while developing any website or custom web application.