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Flashbug Requires Restart

This extension has been discontinued and merged into FlashFirebug.

Rated 3 out of 5 stars (4)
1,236 users

Firebug Net Panel History Overlay Requires Restart

Adds history functionality to firebug net panel.
Requires Firebug 1.2.0b4 or 1.2.0b6

For Firebug versions 1.1.* please use Net Panel Add-on Version 0.2.1

Rated 3 out of 5 stars (4)
3 users

Whois Mind Requires Restart

Whois tool to lookup any Domain name, IP, Whois history, SEO, Nameservers, Emails and much more!

Rated 3 out of 5 stars (6)
543 users

JMeter Requires Restart

Selenium-IDE Plugin to record web traffic and create performance tests for JMeter. Our plugin captures Selenium test playback which can then be downloaded as a standard JMeter .jmx file. This can be uploaded back into JMeter or run via a cloud test.

Rated 3 out of 5 stars (6)
702 users

SpellBound Requires Restart

Adds additional spell-checking functionality to Firefox.

Rated 2 out of 5 stars (102)
97 users

StatShow - Free Website Worth Estimator Requires Restart

Using the right click button it can estimate website worth, traffic(visitors and pageviews), advertisement earnings, alexa rank, backlinks, whois info and more.

Rated 3 out of 5 stars (5)
114 users

L-Square Responsive Design Inspector Requires Restart

Browser pixel rulers to help inspect window widths of adaptive designs. The add-on button acts as a toggle that adds rulers similar to a graphics app to measure the current window resolution.

Rated 3 out of 5 stars (5)
1,389 users

Panda Daily News & Inspiration

Keeping designers and hackers inspired every day.

The must have app for designers and hackers. Comfortably browse Hacker News, Designer News, Product Hunt, Dribbble, Behance and others all in one place. Never miss anything, again.

Rated 3 out of 5 stars (5)
483 users

CSS validator Requires Restart

Validates a page using the W3C CSS Validator.

Rated 3 out of 5 stars (10)
189 users

Screen Draw Requires Restart

Screen Draw lets you draw or type text over the top of any page in any colour or size and then save it to png or jpeg.

Rated 3 out of 5 stars (18)
460 users

MobileView

MobileView shows a panel with the current Tab content in phone-like panel

Rated 3 out of 5 stars (8)
1,997 users

Transaction-net Compatible with Firefox 57+

Blocking third part resources of webpage

Rated 3 out of 5 stars (3)
14 users

No-Script Suite Lite (revived) Compatible with Firefox 57+

Blocks scripts (and more) on untrusted websites

Rated 3 out of 5 stars (8)
2,124 users

View Page Source Button

Adds a View Page Source button to the toolbar

Rated 3 out of 5 stars (3)
218 users

TestGen4Web Requires Restart

Just like your VCR - for Firefox. It records what you do, stores it, and plays it back on demand.

Rated 3 out of 5 stars (3)
8 users

QuickToggles Requires Restart

Toggle cookies, javascript with a single click, and manage simple http proxy config, in the status bar.

Rated 3 out of 5 stars (3)
172 users

My CodeIgniter Requires Restart

敏捷 PHP 框架 CodeIgniter 的 Firefox 扩展。帮助 Web 开发者提高开发效率。

Rated 3 out of 5 stars (3)
19 users

ruler_guides

Photoshop-like guides and rulers interface on a web page. Guides are created by click-and-dragging corresponding horizontal or vertical ruler. It is possible to open/save created guides as grids (Note: grids will be saved on a page location basis).

Rated 3 out of 5 stars (3)
290 users

Baow Resource Manager Requires Restart

Baow Resource Manager is a tool that makes it easy to organize your web resources, download and save web pages , annotate with text or drawings, or edit documents and generate web pages.

Rated 3 out of 5 stars (3)
69 users

Certificate Manager

An add-on to simplify certificate management.

Rated 3 out of 5 stars (3)
183 users