HackBar Requires Restart
Simple security audit / Penetration test tool.
FirePHP Requires Restart
FirePHP enables you to log to your Firebug Console using a simple PHP method call.
Not using Firebug 1.9+ on Firefox 8+? See http://firephp.org/
FireSSH Requires Restart Featured
XPath Checker Requires Restart
An interactive editor for XPath expressions.
Selenium Expert (Selenium IDE) Requires Restart
This plugin is my attempt to bring the wonderful world of inspections, tips, hints, fixes and refactoring to Selenese! The Selenium Expert goes through your selenium test cases suggesting improvements, giving tips and even lets you apply them.
React Developer Tools is a tool that allows you to inspect a React tree, including the component hierarchy, props, state, and more. To get started, just open the Firefox devtools and switch to the React tab.
View Cookies Requires Restart
It adds a tab to the Page Info dialog box, which shows the cookies belonging to the current page.
Google Search by Image:
Use rightclick on an image to quickly find out the source of an image, how it is used, or find higher resolution versions via Google Reverse Image search.
(Google Image Search is similar to Tineye Reverse image search).
Abduction! - Webpage Screenshots Screen Capture Requires Restart
1) Capture an page or just a specific region.
2) Adds a right click option to take screen shots of an entire web page or just part of a web page to save as an image.
Clear Console Requires Restart Featured
One click to clear your cache, cookies, history, html5/local storage, http logins, all of them or restart your browser with/without notifications.
Rainbow Color Tools Requires Restart
Color tools for web development.
Color picker and eyedropper + saving colors and trying out colors with drag and drop.
Open With Requires Restart
Quickly test out your web pages in Internet Explorer, Chrome, Safari, or Opera. Open With opens the current page in your other browsers with just one click. Add Open With to your menus, toolbars and developer toolbox today!
Auto Refresh Requires Restart
Auto Refresh will refresh or hard refresh any tab or group of tabs at individual or group intervals.
You can also customize your presets and save the ones you most use.
Adds an about:addons-memory page that details add-on memory usage
Form History Control Requires Restart
Manage form history entries (search, edit, cleanup, export/import) and easy text formfiller.
Auto-save text entered in any form while typing to allow fast recovery when disaster strikes.
Control for which webpage form history is saved or not.
Firesizer Requires Restart
Allows you to resize the window to specific dimensions.
NOTE: Users of Firefox 29 and above must install "The Addon Bar" extension to use this, as Firesizer uses the add-on bar that has been removed in Firefox 29.
Debug and view SAML messages
The Ultimate online investigation tool! See detailed information about every IP Address, Domain Name and Provider.
FoxyProxy Basic Requires Restart
FoxyProxy Basic is a simple on/off proxy switcher. More advanced features and configuration options are offered by FoxyProxy Standard.