Web Development

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Dafizilla Table2Clipboard

Mozilla applications allow to select rows and columns from a table simply pressing Control key and picking rows/columns with left mouse button.
The selection can be copied to clipboard but the original table disposition is lost making ugly results wh...

Rated 5 out of 5 stars (63)
22,598 users

SEO & Website Analysis

WooRank provides a deep SEO & Website Analysis reviewing more that 50 SEO criterias.

Rated 4 out of 5 stars (33)
13,617 users

Power Debugger (Selenium IDE)

A plugin for Selenium-IDE to improve debugging and troubleshooting issues with scripts

Rated 5 out of 5 stars (2)
8,066 users

Firefinder for Firebug

Finds HTML elements matching chosen CSS selector(s) or XPath expression

Rated 3 out of 5 stars (28)
28,395 users

Leet Key

Transforms typed or static text to L337, ROT13, BASE64, HEX, URL, BIN, DES, AES, Morse code, DVORAK keyboard layout and to lower/to upper case functionality, Leet Font...

Rated 4 out of 5 stars (50)
6,665 users

MeasureIt

Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.

Rated 4 out of 5 stars (327)
176,563 users

Grab Them All (screenshots of many pages)

GrabThemAll extension takes screenshot of sites specified in external file and write them as graphic file to selected directory. URL of sites to shot must be written in *.txt file and start with http[s]:// prefix, URL separated by new line sign.

Rated 4 out of 5 stars (14)
3,398 users

InspectorWidget

Adds toolbar button and context menus for invoking the DOM Inspector (DOMi) for either chrome or content elements.

Rated 5 out of 5 stars (4)
1,453 users

HTTP Header Mangler No Restart

HTTP Header Mangler inserts HTTP headers on a per host basis.

Rated 5 out of 5 stars (4)
1,626 users

Read Easily

Fast page style switcher. It adds toolbar button, context menu item and hotkey (CTRL+ALT+Z) to disable/enable styles on web pages.

Rated 5 out of 5 stars (20)
1,277 users

CacheIt!

Quickly view or copy the URL to a cached version of any wesbite using Google, Coral CDN, or The Way-Back Machine. Allows you to access websites that have crashed or have shut down. Cacheit! can also be useful for bypassing internet filters. Enjoy. :)

Rated 4 out of 5 stars (7)
1,611 users

Poster

A developer tool for interacting with web services and other web resources that lets you make HTTP requests, set the entity body, and content type. This allows you to interact with web services and inspect the results...

Rated 4 out of 5 stars (61)
59,167 users

TrashMail.com for Mozilla Firefox®

Create free disposable email addresses and paste them directly in forms. This helps to protect you from spam mails and could be useful when subscribing to forums or newsletters...

Rated 4 out of 5 stars (57)
13,478 users

LinkParser

LinkParser helps you analyze the links on the page you are on at that very moment. It can differentiate between 9 different types of links and can mark them in different colors. Very customizable.sdas

Rated 5 out of 5 stars (4)
1,729 users

MobileView No Restart

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

Rated 4 out of 5 stars (5)
1,508 users

Click-to-Play Manager No Restart

Manages the Click-to-Play domain whitelist.

Rated 5 out of 5 stars (9)
4,516 users

easy Xdebug

This addon was built to make debugging while using netbeans PHP easier.

Rated 3 out of 5 stars (37)
8,559 users

HttpFox

An HTTP analyzer addon for Firefox

Rated 4 out of 5 stars (159)
115,018 users

ScreenShot on Fail (Selenium IDE)

A plugin for Selenium-IDE to automatically take a screen-shot when a command fails while running the test suite

Rated 4 out of 5 stars (2)
8,832 users

Screen sizes No Restart

Allow add news presets for used in the responsive UI tool. Include name, width and heigth using local storage in your browser. This addons provide a custom presets for the responsive UI tool, that can be installed in preferences option.

Rated 3 out of 5 stars (6)
1,247 users