Web Development

Subscribe

Selenium Builder

Create automated cross-browser functional tests easily and quickly.

Rated 5 out of 5 stars (1)
1,125 users

Random Agent Spoofer No Restart

Rotates complete browser profiles ( from real browsers / devices ) at a user defined time interval. It includes many extra privacy enhancing options

Rated 5 out of 5 stars (103)
58,384 users

Selenium IDE

Selenium IDE is an integrated development environment for Selenium tests. It is implemented as a Firefox extension, and allows you to record, edit, and debug tests.

Rated 5 out of 5 stars (1)
36,999 users

Graphing Calculator Toolbar

Enter up to 5 equations into this toolbar, then view the graphs using Firefox native SVG support. The toolbar allows rescaling the x and y coordinates and redefining the domain. Contributions go directly to the Boys & Girls Club.

Rated 4 out of 5 stars (10)
1,509 users

Live HTTP Headers (Fixed By Danyial.com)

View HTTP headers of a page and while browsing.
Live HTTP Header Fix By Danyial ITs Working On Firefox Again Fixed Reply Problem

Rated 5 out of 5 stars (4)
1,010 users

Custom User-Agent String No Restart

Set custom User-Agent string. Also available for Firefox on Android.

Rated 3 out of 5 stars (8)
24,331 users

Textise No Restart

Creates a text-only version of almost any web page. Great for accessibility, SEO and printing.

Rated 3 out of 5 stars (19)
5,331 users

iMacros for Firefox Featured

Automate Firefox. Record and replay repetitious work. If you love the Firefox web browser, but are tired of repetitive tasks like visiting the same sites every days, filling out forms, and remembering passwords, then iMacros for Firefox is the soluti...

Rated 4 out of 5 stars (390)
484,701 users

FireMath

FireMath is an equation editor based on MathML, the mathematical markup language.

Find examples, FAQ, installation instructions and a discussion board at
http://www.firemath.info

Speed up scientific scripting! Improve your science!

Rated 4 out of 5 stars (12)
5,059 users

Charles Proxy Auto-Configuration

Configures Mozilla Firefox for use with Charles Web Debugging Proxy.

Rated 5 out of 5 stars (3)
7,110 users

cors everywhere

This is a firefox addon that allows the user to enable CORS everywhere by altering http responses.

Rated 4 out of 5 stars (3)
2,940 users

Formlet

Saving form data to bookmarklets

Rated 4 out of 5 stars (7)
1,776 users

Copy Pure Text

Allows to copy selected text as plain text by adding a 'Copy as Text' menu item to context menu.

Rated 4 out of 5 stars (15)
6,402 users

Proxy Switcher No Restart Featured

Access to the complete Firefox's proxy settings right from a toolbar panel

Rated 5 out of 5 stars (6)
3,927 users

Google Analytics Debugger No Restart

A devtools extension for debugging Google Analytics tracking code

Rated 5 out of 5 stars (1)
1,433 users

RESTED No Restart

A REST client for the rest of us

Rated 3 out of 5 stars (3)
2,975 users

Remote XUL Manager No Restart

Manages the Remote XUL whitelist to allow websites and local files to load XUL content. For versions compatible with Firefox 41 and lower, see All Versions page below.

Rated 5 out of 5 stars (36)
72,383 users

React Developer Tools No Restart

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.

Rated 5 out of 5 stars (1)
6,487 users

RequestPolicy v0.5 Legacy

Be in control of which cross-site requests are allowed. Improve the privacy of your browsing by not letting other sites know your browsing habits. Secure yourself from Cross-Site Request Forgery (CSRF) and other attacks.

Rated 3 out of 5 stars (4)
2,347 users

Disable WebRTC No Restart

WebRTC leaks your actual IP addresses from behind your VPN, by default.

Rated 5 out of 5 stars (27)
27,931 users