Icon of program: Web Developer for Firefox

Web Developer for Firefox for Windows

By Chris PederickFreeUser Rating

Key Details of Web Developer for Firefox

  • Add menus and a toolbars with various web developer tools to Firefox.
  • Last updated on February 29, 2024
  • There have been 3 updates
  • Virus scan status:

    Clean (it's extremely likely that this software program is clean)

The Download Now link will prompt a local download of the Firefox extension. To install the extension directly, open the file using your Firefox browser.

Enlarged image for Web Developer for Firefox

Editors' Review

Download.com staff
The extension is actually a large collection of various tools for a Web master. Using Web Developer, you can get extensive information about page elements: link details, size, attributes, and colors. Web Developer can highlight any kind of elements (for instance, block-level ones and tables). You will even find a ruler utility to measure anything on a page. The add-on allows you to validate style sheets and HTML code of a page. Finally, you can use Web Developer to enhance the look of a poorly designed page. It lets you linearize a page, hide the background, and enforce large fonts. The extension installs a toolbar that accelerates access to the utilities. The extension will primarily interest Web masters but common surfers may use it for making pages more readable.

What's new in version 1.2.5

  • Czech localizations added
  • 'Find Broken Images' fixed
  • 'View Color Information' fixed
  • 'View Form Information' fixed
  • 'View Link Information' fixed
  • 'View Meta Tag Information' fixed
  • Localization errors made the toolbar disappear
  • The toolbar icon was too large on Windows
  • Various minor code fixes

  • Explore More

    Full Specifications

    September 17, 2013
    Latest update
    February 29, 2024
    Operating System
    Windows ME, Windows 10, Windows XP, Windows 98, Windows 2000, Windows NT
    Additional Requirements
    Firefox 3.6 and later, SeaMonkey 2.0 and later
    Total Downloads
    Downloads Last Week

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    User Reviews


    11 User Votes

    Developer's Description

    Add menus and a toolbars with various web developer tools to Firefox.

    Web developer toolbar includes various development tools such as window resizing, form and image debugging, links to page validation and optimization tools and much more.