Comprehensive Web Development Tools for Firefox

The Web Developer extension for Firefox enhances the browsing experience by providing a suite of tools specifically designed for web development. This free add-on is packed with features that assist developers in inspecting and debugging web pages, making it an essential tool for both novice and experienced developers. Users can easily access various functionalities, including CSS and HTML inspection, form validation, and image manipulation, all within the browser interface.

This extension streamlines the development process by offering an intuitive layout that organizes tools into convenient menus. It supports tasks such as disabling styles, resizing the browser window, and analyzing page performance. With its focus on usability and efficiency, the Web Developer extension empowers developers to optimize their workflow and enhance their web projects effectively.

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App specs

  • License

    Free

  • Version

    3.0.1

  • Latest update

  • Platform

    firefox

  • Size

    583.46 KB

  • Developer

Program available in other languages



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Laws concerning the use of this software vary from country to country. We do not encourage or condone the use of this program if it is in violation of these laws.
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Score result: Clean

This file passed a comprehensive security scan using VirusTotal technology. It is safe to download.

  • Virus free
  • Spyware free
  • Malware free
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Scan Info

Last scan
Wednesday, September 3, 2025
Scan provider
VirusTotal · Full report

File Integrity

File
3.0.1.xpi
SHA256
4d2ce2773186faa385bd95cfff10e244e37a288800497b750bab665d7be21a3d
SHA1
ce1cbf77d65e028006286b4edf96f695bed8f727

Softonic security commitment

Web Developer has been thoroughly scanned by our advanced security systems and verified by industry-leading partners. This file comes from the official developer and has passed all our security checks, showing no signs of viruses, malware, or spyware.