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Cover image for Top Firefox Extensions For Developers πŸ”₯πŸš€

Top Firefox Extensions For Developers πŸ”₯πŸš€

brandonwallace profile image brandon_wallace ・2 min read

Here are some great Firefox extensions for developers which will make you more productive.


1 - Wappalyzer

Wappalyzer will identify technologies used on websites.


2 - Stylus

Use Stylus to redesign, edit, create, and manage a website's CSS.


3 - JSON View

View JSON document in the browser formatted and highlighted.


4 - HTML Validator

Validate HTML on a webpage.


5 - Measure-it

Measure elements on the webpage.


6 - REST Client

Make custom HTTP request for testing purposes.


7 - ColorZilla

Many features related to selecting colors.


8 - Selenium IDE

Extension that allows you to record, edit, and debug tests.


9 - Web Developer

Add various web developer tools to your browser.


10 - WhatFont

Inspect fonts contained on a page.

Comment on your favorite extension!

Linked article: Go check out this awesome list of Chrome extensions by DevLorenzo πŸš€

Cover image by Gerd Altmann on Pixabay

Discussion (4)

stevewhitmore profile image
Steve Whitmore

Firefox actually has a built in JSON viewer now! It's enabled by default on the normal release version as of version 53 -

I also recommend BitWarden as another must have plugin for devs. We need to manage a lot of credentials and it saves a lot of time. And, unlike LastPass, it's open source!

brandonwallace profile image
brandon_wallace Author

Thank you for the comment Steve. I guess a JSON viewer would be an easy thing to incorporate into a browser.

jonrandy profile image
Jon Randy

A lot of the things you mention just provide functionality that's already built in

brandonwallace profile image
brandon_wallace Author • Edited

Thank you for your comment Jon. Can you explain more? I will happily update this post with the information.

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