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It adds to Mozilla Firefox a menu and a toolbar with various web developer tools.

The Web Developer extension adds various web developer tools to a browser. The extension is available for Firefox and Chrome, and will run on any platform that these browsers support including Windows, Mac OS X and Linux.

Web Developer Features

The Web Developer extension adds various web developer tools to a browser.

Acknowledgements

* The original concept for the Web Developer extension came from the PNH Developer Toolbar.
* The icons are by famfamfam.
* The complex string options support was suggested and written by Norio Minato.
* The collapse and expand functionality of the output of the features was suggested and written by Sylvain Pasche.
* Feature acknowledgements:
o Many of the features are inspired by Jesse Ruderman's Bookmarklets.
o The 'Clear Session Cookies' feature was written by Viliam Durina.
o The 'Display Element Information' feature is inspired by the Mouseover DOM Inspector written by Steve Chipman.
o The 'Display Image File Sizes' feature was written by Kevin Hamilton.
o The 'Display Ruler' feature is inspired by the Ruler Favelet written by Kevin Smith.
o The 'Display Topographic Information' feature is inspired by the Topographic View bookmarlet written by Joseph Pearson.
o The 'Edit CSS' feature is inspired by the Edit CSS extension.
o The 'Show Comments' feature is based on the showcomments bookmarklet written by Josh Santangelo and Adam Collard.
* Thanks to all those who have emailed me with bugs, feature requests or just messages of encouragement.
* Special thanks to those who have donated—your donation allows me to continue my development.