Firefox extensions are of great help if you want to work efficiently. It will do things for you in seconds which otherwise will take hours if you perform those steps manually. There are many extensions available in this technological era so it might be difficult for you to find a perfect one. But do not worry because we know how precious your time is. So, in this guide, we have listed 26 Firefox extensions for developers and designers that will make your life easy. We have also listed its features and have provided a brief about it. So, keep reading to know about it.

Top 26 Best Firefox Extensions for Developers and Designers

We have provided a list of 26 Firefox extensions for developers and designers that will make your life easy. Keep reading to know about them.

Contents

  • Top 26 Best Firefox Extensions for Developers and Designers
    1. FireShot
    1. PixelPerfect
    1. SeoQuake
    1. NoScript Security Suite
    1. Total Validator
    1. Colorzilla
    1. Firebug
    1. Web Developer
    1. Dark Background and Light Text
    1. Grammar and Spell Checker- LanguageTool
    1. app.telemetry Page Speed Monitor
    1. Search by Image
    1. Measure-it
    1. SEO Minion
    1. Window Resizer
    1. Greasemonkey
    1. Font Finder
    1. Debug CSS
    1. Gyazo
    1. Dark Reader
    1. New Library Detector
    1. Dust-me Selectors
    1. Drag To GO+
    1. IE Tab
    1. FireFTP
    1. Aardvark

1. FireShot

FireShot is a Firefox extension for developers and designers. It is also compatible with Google, Opera, Yandex, Edge, and many other browsers. If you use this, you will be able to share screenshots in a few seconds. We have listed some of its key features-

  • It has a user-friendly interface.
  • You can edit the screenshots.
  • You can capture full web pages.
  • It seamlessly integrates with the browser you use.
  • Apart from this, you can make still images from video.
  • FireShot allows you to convert web pages to Pdf.
  • Pricing: FireShot Pro Lifetime License- Rs 4095.17

Also Read: Why is Firefox Down?

2. PixelPerfect

Another Firefox extensions for web developers is PixelPerfect. It is useful for small businesses as its budget-friendly. You can do graphic designing by using this tool. Some of its key features are-

  • Mobile app development is possible by using PixelPerfect.
  • It can also do branding for your business.
  • You can create logos, color schemes, and slogans by using this tool.
  • PixelPerfect can be used to maintain websites.
  • Online advertising can be done.
  • Apart from this, you can produce email sales letters by using it.

3. SeoQuake

SeoQuake is Firefox extensions for designers. If you use this software, you will be able to optimize your web page for search engines which are of key importance in this highly competitive digital world. We have listed some of its key features that will help you decide on the perfect software for you-

  • SeoQuake allows you to estimate keyword difficulty.
  • It is easy to install.
  • It is constantly updated.
  • It can perform internal/external link analysis.
  • You can compare domains.
  • It is compatible with many other web browsers also.
  • You can conduct an SEO audit.
  • SeoQuake allows you to create a custom set.
  • It has a user-friendly interface.
  • You can determine keyword density if you use this software.
  • Apart from this, you can get Google Algorithm Updates.
  • It is available for free.

4. NoScript Security Suite

NoScript Security Suite is a free extension that supports chrome, Firefox, brave, edge, and many other web browsers. It is free software that you can use to safeguard your website. Some of its important features are provided below-

  • It gives its users anti-XSS protection.
  • It is open-source software.

Also Read: 16 Best Ad Blocking Extensions for Chrome

5. Total Validator

Another Firefox extensions for developers and designers is Total Validator. It has a wide user base and is also used by top sites in the world so you can trust this software. By using this you can check whether the coding for your website is correct or not. It has many advanced features that will be of great help to you if you are a web developer. We have listed some of its relevant features-

  • It provides a spell check for your website.
  • Apart from this, you can search for broken links by using this software.
  • You can check whether your website is accessible to users or not.
  • Total Validator supports Windows, macOS, and Linux.
  • DOM testing can be done if you use this software.

6. Colorzilla

Colorzilla is a Firefox extensions for developers and designers. It has an advanced Eyedropper. Apart from this, it also has CSS gradient editor that you can use. Colorzilla can help you in designing a website. Some of its important features are-

  • It has a zoom option.
  • Colorzilla has a Palette viewer feature also.
  • It is compatible with Windows, Linux, and other OS.
  • You can get access to the advanced Color Picker feature also if you will use this.

7. Firebug

Firebug is an extension that is compatible with Firefox. If you are a web developer then you should give a try to this. It helps you in developing code as whenever your code is broken, the Firebug will inform you. Some of its key features are-

  • It is user-friendly.
  • It can debug instantly.
  • It checks your code.
  • It has an error console and code inspectors.

Also Read: Enable Adobe Flash Player on Chrome, Firefox, and Edge

8. Web Developer

Web Developer is a Firefox extensions for designers. It is also compatible with Chrome. You can resize an image, make an image invisible and make images full size. Some of its other important features are listed below-

  • You can outline background images.
  • Web developer allows you to view image information.
  • It allows you to outline images without dimensions.
  • Different layouts are also available.

9. Dark Background and Light Text

Dark Background and Light Text is a Firefox extensions for developers and designers. With the help of this software, you can show light-colored text on your dark-colored background web page. You can also submit bug reports. Some of its other important features are listed below-

  • Supports different styles and can be disabled on individual sites.
  • Makes sure that texts as well as the links are readable as soon as the dark mode is enabled.
  • Provides the option to change colors in settings.

10. Grammar and Spell Checker- LanguageTool

If you want your web page to have flawless English then you should give try to Grammar and Spell Checker- LanguageTool. It is easy to use and no registration is required if you want to use it. Some of its features are listed below that will make you use this tool-

  • It supports multiple languages.
  • It respects user privacy.
  • Grammar and Spell Checker- LanguageTool is compatible with Gmail and many other social media platforms.
  • It also provides suggestions that can help your content look more creative.

Also Read: Fix No Sound in Firefox on Windows 10

11. app.telemetry Page Speed Monitor

As the name of app.telemetry Page Speed Monitor suggests you will be able to know the page load time. A developer must know the performance of the website and this software tool can help you with this. It is an extension that is available for Firefox. Some of its key features are listed below-

  • You can view the load time in the menu bar.
  • In one click, it provides you with all the information.
  • It is an easy-to-use app.

12. Search by Image

Search by Image is a great tool if you are someone who enjoys reverse engineering. Some of its features are-

  • It is an open-source project.
  • It is of great help to those who want to verify the authenticity of images.
  • It is available for chrome and safari also.

13. Measure-it

Measure-it is a Firefox extensions for designers. It has a user-friendly interface and with the help of this software, you can draw a ruler across any web page. Some of its important features are listed below-

  • You can check the height of the page with the help of Measure-it.
  • It has provided a keyboard shortcut that can be of great help to you as it will allow you to work efficiently.

Also Read: Top 11 Best Deep Web Browsers for Anonymous Browsing

14. SEO Minion

Another great extension that you can use is SEO Minion. With the help of this tool, you can analyze the HTML of your webpage. It is available for free which makes it a great choice for you especially if you are a freelancer or have just started to work on web designing. We have listed its unique features-

  • You can highlight links with the help of this extension.
  • SERP Preview is also available.
  • You can also check broken links.

15. Window Resizer

With the help of Window Resizer, you can resize Windows. It is a great Firefox extensions for developers and designers. Some of its excellent features are-

  • You can customize a layout with the help of this.
  • You can also report bugs.
  • It allows you to reposition the Window.

16. Greasemonkey

Greasemonkey is a Firefox extension. By using this tool, you can customize the web page display. Its excellent features are listed below-

  • It uses JavaScript.
  • If you use this tool, then you can write your script, also.

Also Read: Fix Google Chrome Disk Full Download Error

17. Font Finder

Font Finder is a software tool. It is of great help to web developers. It can analyze the font of any web page. This analysis of font includes font colour, font size, font family, background colour, and much other information. Some of its excellent features are-

  • Typography analysis can be performed by Font Finder.
  • Alignment and indentment are also possible with the help of this extension.
  • You can transform the text too.

18. Debug CSS

Debug CSS is a Firefox extensions for developers and designers to create an outline for each element on the page to highlight the one that is interfering with the layout you want. It has also provided a guideline on how to use it. Its important features are-

  • It is a lightweight extension, so it will not take up much space.
  • Keyboard shortcuts are also provided by it.
  • It can also add outlines.

19. Gyazo

Another Firefox extensions for web developers is Gyazo. If you are a website developer and content writer for your site, then you can use this extension as it allows you to capture anything from the web. This software will make your life efficient. We have listed Gyazo important features below-

  • You can save images with the help of Gyazo.
  • Gyazo automatically saves everything you clip, so you do not have to do the hustle.
  • It allows you to take screenshots.

Also Read: 21 Best Download Manager for Windows 10

20. Dark Reader

This eye-care plugin enables night mode and automatically generates dark themes for websites. Bright colours are inverted by Dark Reader, producing striking contrast and making them simple to read at night. So, it is an excellent tool for you if you are a web designer who loves to work at night. We have listed its key features below-

  • It empowers you to decide on the brightness at your convenience.
  • It accepts the donation.
  • No ads popped up on this extension.
  • With the help of this app, you can invert bright colours.

21. New Library Detector

New Library Detector is a Firefox extensions for web developers. Its important feature is that it can detect Javascript libraries. Some of its excellent features are listed below that will help you decide the best for yourself-

  • It supports more than 80 Javascripts.
  • New Library Detector showcases Javascript libraries icons in the address bar of your PC.

22. Dust-me Selectors

Another Firefox extensions for web developers is Dust-me Selectors. It is also compatible with Opera. It can scan the page automatically but this feature is available only for Firefox. Some of its key features are provided below-

  • It is fast.
  • You can create a copy of any stylesheet with the help of Dust-me Selectors.
  • You can log data in Firefox and Opera.
  • Apart from this, it can scan any HTML page.
  • With the help of this tool, you can scan any XML or HTML sitemap.
  • It has provided a keyboard shortcut that can help users.

Also Read: Fix Firefox is Already Running

23. Drag To GO+

Drag To GO+ supports opening, storing, and searching images with drag-and-drop movements. But it can have bugs as it is still under experiment, so you must be cautious if you use it now. Some of its important features are-

  • It has a user-friendly interface.
  • You can search texts and links also.

24. IE Tab

Another extension that is compatible with Firefox 3 is IE Tab. It is available for free. Also, it supports Windows 11. You can create a list of URLs by using this software. Some of its key features are listed below-

  • It is reliable.
  • You can use Java in Chrome.
  • It is secure.
  • Customer support is also provided to users.

25. FireFTP

FireFTP is an extension that is compatible with Firefox. You can easily upload files on your website by using this tool. It is available for free which makes it an excellent choice for new web developers and designers. Some of its features are listed below-

  • It is secure and reliable.
  • It is compatible with Windows.
  • FireFTP has Drag and Drop feature.
  • Apart from this, it can generate hashes of files.

Also Read: Fix Firefox Right Click Not Working

26. Aardvark

Aardvark is a great tool that you can use if you are a web developer or web designer. Not only this if you are a beginner then also you can use this software. Its old extension was compatible with Firefox. Some of its important features are:

  • It allows you to magnify any portion of the page.
  • It has lots of color options available.

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We hope that our doc has guided you extremely well about Firefox extensions for developers and designers. With some amazing features one of the above-mentioned Firefox extensions is going to be a useful asset for you. Let us know about your favorite tool and also leave your queries or suggestions, if any, in the comments section below.