- Any Firefox
- Firefox 49.0
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- Firefox 26.0
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- Firefox 17.0
- Firefox 12.0
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66 matching results
Displays JSON data in a collapsible tree structure with syntax highlights.
Record, bookmark and replay your browser activities in a snap with DéjàClick. Designed for Firefox, DéjàClick can handle the most complex websites - including AJAX, Flash, forms and more. With a single click you can repeat your most common tasks.
IDE for FireFox plug-in developers and business analysts who create User Interface mock-ups. A WYSIWYG XUL editor
Blocks desired HTML contents (script, style, image, object, media)
usi (User|Unified Script Injector) No Restart
use UserScripts on your Firefox for Android with usi!
Firebug No Restart
Toggle JS No Restart
Good Website Inspector is an extended ruleset for YSLOW, a Firefox AddOn, to check source codes of HTML pages to get easy and fast hints to optimize the current page.
Library Detector No Restart
Firebug command line autocomplete.
Web Developer Featured
The Web Developer extension adds various web developer tools to the browser.
View Dependencies adds a tab to the Page Info window, in which it lists all the files which were loaded to show the current page.
A suite of tools for developers.