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83 matching results
IDE for FireFox plug-in developers and business analysts who create User Interface mock-ups. A WYSIWYG XUL editor
Displays JSON data in a collapsible tree structure with syntax highlights.
Toggle JS No Restart
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.
Blocks desired HTML contents (script, style, image, object, media)
Firebug No Restart Featured
Decentraleyes No Restart Featured
Protects you against tracking through "free", centralized, content delivery. It prevents a lot of requests from reaching networks like Google Hosted Libraries, and serves local files to keep sites from breaking. Complements regular content blockers.
JSOff No Restart
Firebug command line autocomplete.
Customize Your Web (CYW) let's you customize your favorite websites with just a few clicks. What Greasemonkey is for developers is CYW for non-developers. You can remove/rearrange /modify elements, add keyboard shortcuts and do many other things.
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.
Web Developer Featured
The Web Developer extension adds various web developer tools to the browser.
As of Firefox 33, Venkman *no longer works*, as the APIs which it needs have been removed.