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 🚀

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