Best Firefox tools that help web developers

Best Firefox tools that help web developers

Firefox is one of the most popular web browsers in the world, which is accessible by the billions of people across the globe to surf the web, check their email and watch their favorite videos. This open-source browser also very useful for web developers. If you are a web developer then Firefox and its add-ons are speed up your development process and save your valuable time.

Here are the highly recommended, top-notch Firefox add-ons for front-end web developers -

Web Developer

The Web Developer Firefox add-on is a kind of web design tools included with most useful functions that will help you to design web and perform tasks more efficiently. It displays as a toolbar towards the top of the browser, presenting you with various menus such as CSS, Resize and Cookies.

Ember Inspector

Ember Inspector is used for debugging the Firefox Browser itself. It can change the color of the URL bar or for instance, change the curve of the tabs with non-persistent results. Ember Inspector is a great tool for Developer or if just want to test out your changes.


WebIDE allows you to create, edit, test or debug web apps by running them on the Firefox OS simulator. If you are creating a new web app, it also creates a basic app boilerplate or a more complete boilerplate for you along with a proper directory structure. WebIDE also allows you to connect Firefox Devtools to many other web browsers such as Safari, Firefox and Chrome.


These tools provide an advanced eyedropper, color picker, gradient generator feature and other colorful goodies. The web designers frequently work with color. The add-on includes a color picker (much like the one you see in Photoshop) and an eyedropper tool which helps you to know the hexadecimal value of any color in a web page so that you can create a sample and identify the colors used on any web page.

CSS Inspector

CSS Inspector is an extension that allows you to reload all the CSS of any site without reloading the page itself. It works by identifying the CSS you use and don't use, pointing out what unnecessary parts can be removed to keep your CSS files as lightweight as possible.

FoxyProxy Standard

FoxyProxy is an advanced proxy management tool that completely replaces Firefox’s limited proxying capabilities. It offers more features than SwitchProxy, ProxyButton, QuickProxy, xyzproxy, ProxyTex, TorButton, etc.


SeoQuake will help you in optimizing your web pages for search engines. It gives you a SeoBar that has loads of useful SEO-related options for you to take advantage of. This extension will assist you in identifying issues pertaining to search engine indexing in your web pages.


FireFTP is a streamlined Firefox extension for uploading files to a server. It offers several advantages to standalone FTP applications, such as its operating system-independent requirements. This browser add-on has all the features you would expect from standalone apps.

Open Lorem

As a web developer or designer, you’ll find this extension quite helpful. Open Lorem generates “lorem ipsum” text for you and your websites.


FireShot is a Firefox add-on that creates screenshots of your web page. It gives you a set of editing and annotation tools for working with your screenshots. This can be a handy extension to have for presenting your work in your portfolio.


The Greasemonkey Firefox add-on enables you to modify how a web page looks and works by using small snippets of JavaScript. There are hundreds of scripts that you can download to enhance this add-on.

Palette Grabber

Palette Grabber add-on will build color themes that are exportable to popular graphic-editing software such as Photoshop, Paint Shop Pro, GIMP, Fireworks etc.


Usersnap is your central place to organize user feedback and bugs. With the Usersnap extension, you can leave feedback and bug reports with screenshots for any website or web app. With this browser extension, you'll take a screen capture of your browser and add useful information, such as browser version, OS and screen resolution automatically.

HTML Validator

This nifty Firefox add-on helps to make sure that you're writing well-formed HTML. It checks your markup for standards compliance, and if it catches anything that doesn't cut it, the add-on tells you why so that you can update the code.


The BuiltWith add-on analyses websites and their technologies, servers, and hosts. It works great for analyzing competitor websites and you can get insights on any web page. And it even displays tracking IDs, like the Google Analytics ID. It helps developers, researchers and designers find out what technologies web pages are using which may help them to decide what technologies to implement themselves.

Page Speed

Page Speed is a browser extension developed by Google that analyzes a web page and tells you where improvements can be made to increase the site's speed. It's a great tool for testing a web design's ability to render fast. Alternatively, you can use Page Speed Online, which is a web-based version of the add-on.


Firefox also offers a developer version of its powerful browser that provides a wide array of inbuilt tools for creating, debugging, performance monitoring, debugging the browser and extending the DevTools themselves. But these are not the only tools available for the developer, there are plenty of Firefox add-ons at your disposal that can extend the browser's core functionality. So, we hope that the introduction of the above-mentioned tools will help you in your daily web development works.