Extensions by Name



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

Rated 3 out of 5 stars (3)
303 users


Allows to show or hide firefox and add-ons toolbars with a single click.

Rated 4 out of 5 stars (47)
339 users


Quick post tweet on firefox

Rated 5 out of 5 stars (5)
12 users


A tool to preview any link / phrase and check WhoSpoke - opinions of others..

Rated 4 out of 5 stars (1)
2 users


Quick lookup in Wiktionary and Wikipedia, without the need to open a new tab.
Just right-click a word while shift / ctrl / alt is pressed.

Rated 4 out of 5 stars (135)
15,573 users

QuickWikiEditor No Restart

Edittool for Wikipediaauthors – With this add-on it is possible to make little edits to wiki-articles without having to leave or reload the page, so the flow in reading an article is barely disturbed.

Rated 5 out of 5 stars (1)
143 users

Quidco Cashback Reminder

Quidco is the UK's number 1 cashback site. Never miss out on cashback ever again with the Quidco Cashback Reminder. Our new add on, displays no toolbar which may affect the view of your browser and is now compatible at over 4,200 retailers.

Rated 2 out of 5 stars (8)
3,776 users

Quiet Read

Adds a page to Quiet Read

Not yet rated
1 user


QuietUrl automatically converts mistyped or obfuscated URLs to valid ones, can obfuscate URLs on form submission for privacy and it also creates clickable links from text URLs, which works with incomplete URLs as well, like those in YouTube comments.

Rated 4 out of 5 stars (41)
1,227 users

quinz.me - Image Host Add-On

With this Add-On you can upload your images to http://host.quinz.org made available by http://quinz.org

Not yet rated
2 users


Please write a review to get this out of Sandbox into mainstream!! Will be much appreciated!!
The quip (quick-ip) addon eliminates typing in the first two octets of the ip address. Typically in intranet testing or development environments, you access...http://172.16 part in preferences and change it to something else. You can also add a post fix to the address (for e.g: a port number) as well.

Rated 5 out of 5 stars (3)
1 user

Quit Firefox

Quit Firefox provides statusbar and Toolbar buttons to quickly shut down Firefox. It is especially useful for laptop users.

Rated 5 out of 5 stars (6)
490 users

quit gcli No Restart

quit command for the developer command line

Not yet rated
3 users


Quitomzilla helps you quit smoking while you surf the web or wait for new emails, showing the cigarettes, money and time you have saved since you quit...

Rated 5 out of 5 stars (18)
453 users

Quiz Addicts' Toolbar

Adds a quiz toolbar for quiz addicts. Thousands of questions produced on the toolbar, One every 10 minutes...

Rated 4 out of 5 stars (5)
15 users

Quizlet add-on

This add-on will take you to the Quizlet web site.

Not yet rated
28 users

Quizlet Helper No Restart

Helps to work with Quizlet service.

Not yet rated
12 users


Have a great time with your friends knowing them better by sharing quiz results.

Rated 5 out of 5 stars (1)
7 users

Quo Vadis?

Quo Vadis? reveals where a shortened URL leads.

[This add-on is no longer supported by the developer.]

Rated 3 out of 5 stars (4)
178 users

Quora Extender No Restart

Extends Quora with new features.

Rated 4 out of 5 stars (3)
57 users