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Transparent standalone images

This add-on renders standalone images on a transparent background, so you can see the image in all its glory!

Rated 5 out of 5 stars (40)
875 users
Updated April 23, 2014

Advanced Frame Designer Requires Restart

A tool to design frames directly in the web page. The integrated color picker supports also harmonic colors. Operating notes see the tooltips.

Rated 5 out of 5 stars (2)
377 users
Updated April 20, 2014

Tracey Requires Restart

Javascript execution trace utility. This extension allows you to log some or all javascript function calls within web pages to a log file. You may then use standard operating system tools to view, search and diff the log files.

Not yet rated
1 user
Updated April 18, 2014

FoxBleed

Checks the websites you are visiting whether they are affected by the Heartbleed vulnerability.

Rated 5 out of 5 stars (7)
1,521 users
Updated April 14, 2014

mussumipsum

This is a funny "Lorem Ipsum" plugin about famous Brazilian humorous actor and musician called Mussum. (http://en.wikipedia.org/wiki/Mussum)

Rated 5 out of 5 stars (1)
9 users
Updated April 14, 2014

DNS Saver

Save DNS for visited hosts.

Rated 4 out of 5 stars (5)
209 users
Updated April 9, 2014

Counter Requires Restart

This addon is able to count the total number of available Text fields, urls and buttons on Webpage including hidden fields and this addon will also show you all hidden/Non Hidden URLS of a Webpage.

Rated 5 out of 5 stars (1)
28 users
Updated April 9, 2014

Zaqwes Edit Page

make page editable

Not yet rated
6 users
Updated April 4, 2014

Shortest URL shortener ever

Shortest URL shortener ever shortens the current page's URL and copies it to the clipboard with a single click.

Rated 3 out of 5 stars (2)
68 users
Updated April 4, 2014

Fire Resizer Requires Restart

Windows resizer extension

Not yet rated
76 users
Updated March 31, 2014

Grab Them All (screenshots of many pages) Requires Restart

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 (24)
2,336 users
Updated March 27, 2014

Monifox Requires Restart

Monifox is an add-on to Monitis, the web and cloud performance monitoring and management tool. It will help you keep track of the most recent statistics regarding your server(s), website(s) and network.

Rated 3 out of 5 stars (1)
43 users
Updated March 24, 2014

Stylish Sync

Sync engine for Stylish with backup / restore facility.

Rated 5 out of 5 stars (26)
3,526 users
Updated March 23, 2014

Preferences Monitor

Track your Firefox's (about:config) preferences for unwanted changes.

Rated 4 out of 5 stars (44)
713 users
Updated March 21, 2014

WCAG Contrast checker Requires Restart

Checks for compliance with the contrast levels, brightness and shine in the color combination of foreground and background of textual content based on the requirements of WCAG 1 and WCAG 2.

Rated 4 out of 5 stars (9)
2,998 users
Updated March 19, 2014

Pentadactyl

Firefox for Vim and Links addicts.

Rated 5 out of 5 stars (137)
327 users
Updated March 16, 2014

Scriptlet

The best way to save and use bookmarklets known to man, toolbar buttons.

Rated 1 out of 5 stars (3)
8 users
Updated March 14, 2014

HTTP Resource Test Requires Restart

Firefox extension for testing HTTP Resources

Rated 4 out of 5 stars (14)
3,268 users
Updated March 11, 2014

online-dictionary

Add on to show meaning of selected word.

Rated 4 out of 5 stars (4)
4 users
Updated March 10, 2014

sepsis-console (Deprecated) Requires Restart

THIS VERSION IS DEPRECATED. Use https://addons.mozilla.org/en-US/developers/addon/sepsis-console instead. See the description below.

sepsis-console is a general-purpose JavaScript console for all Mozilla toolkit applications.

Not yet rated
1 user
Updated March 6, 2014