Web Development

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Ghostery Featured

Increase your browsing privacy, protection, and speed.

Rated 5 out of 5 stars (1,346)
1,371,175 users

UnicodetoHTML Requires Restart

Converts selected unicode text to HTML character codes with right-click.

Rated 5 out of 5 stars (7)
267 users

Web Developer Requires Restart

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

Rated 5 out of 5 stars (254)
427,128 users

Link Properties Plus Requires Restart

Provides extended link properties: size of linked file, last modified time, etc.

Rated 5 out of 5 stars (13)
1,801 users

AngScope Requires Restart

Simple Firebug extension that allows you to inspect the AngularJS scope that a DOM element binds to. This is not an official extension by the Angular JS team. It's something I wrote for me and my colleagues, I find it useful and like to share.

Rated 5 out of 5 stars (13)
8,500 users

DOM Inspector Requires Restart

DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.

Rated 5 out of 5 stars (72)
112,542 users

307.to Requires Restart

Why 307? - 307 is a server side temporary redirect code. Used by servers to redirect your web-browser to a new directory or a new web site.http://307.to/is a redirect service used to make tiny URLs for a lot of uses.

You can protect redirections or ...

Rated 5 out of 5 stars (16)
5 users

StylRRR - Barebones Userstyle Injector

Lets you add userstyles ( website and browser themes) with a mini addon.

Rated 5 out of 5 stars (15)
304 users

PixelZoomer Requires Restart

PixelZoomer takes a screenshot of the current website and provides various tools for pixel analysis. You can zoom into websites (up to 3200%), measure distances and pick colors with an eye dropper.

PixelZoomer requires Firefox 3.6 or higher.

Rated 5 out of 5 stars (24)
5,201 users

Random Agent Spoofer

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 (141)
248,597 users

Font Finder (revived)

Get all CSS styles of selected text

Rated 5 out of 5 stars (8)
5,958 users

Behind The *Asterisks* (EladKarako Mod) Requires Restart

Mouse-Over Shows Whats *Behind* The *Asterisks*
Video Review: http://www.youtube.com/watch?v=hifCmVpBflU

Rated 5 out of 5 stars (8)
76 users

pwgen - Password Generator Requires Restart

For Sysadmins / Network Engineers / and why not everybody who needs a quick password generator.. simple, yet efficient.

Rated 5 out of 5 stars (47)
5,326 users

Copy Fixer Requires Restart

Copy the page title and URL using Ctrl-C or Command-C.

Rated 5 out of 5 stars (12)
961 users

Nimbus Screen Capture - editable screenshots

1) Screen capture web pages.
2) Selected regions.
3) Whole browser windows.
4) Slack direct upload (NEW!)
Edit screenshots and save images as local file or Google Drive. Annotate screenshots with different tools. Upload and share!

Rated 5 out of 5 stars (322)
126,931 users

JavaScript Deobfuscator

This add-on shows you what JavaScript code runs on a web page, even if it is obfuscated and generated on the fly. Simply open JavaScript Deobfuscator from the Web Developer menu and watch the scripts being compiled/executed.

Rated 5 out of 5 stars (20)
45,320 users

Extended Copy Menu (fix version) Requires Restart

Provides the option to copy selection as plain text or html.

Rated 5 out of 5 stars (20)
3,231 users

Proxy Switcher Featured

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

Rated 5 out of 5 stars (24)
37,575 users

Aardvark Requires Restart

Cool utility for cleaning up a page (for printing or better viewing) as well as for web development. Displays a red rectangle on the element under the mouse -- hit "w" to go wider (get the containing element), then hit other keystrokes to remove, etc

Rated 5 out of 5 stars (156)
912 users

Document Map Requires Restart

Displays the current page's heading structure in the sidebar, allowing rapid navigation between...

Rated 5 out of 5 stars (16)
34 users