Extensions by Name



Looks up the origin AS (Autonomous System) for the current Website.
It will insert a small box with the infos on the bottom right corner. You can double click it to let it disappear until the next page load.

Not yet rated
6 users


A source viewer that enables you to view not only page's HTML source but also style sheets and scripts. It uses Prism syntax highlighter and it can beautify(unminify) the source code.

Rated 4 out of 5 stars (8)
326 users

Oritor Desktop Streamer

Jitsi-Meet Desktop Sharing: enables screen sharing for the Jitsi-Meet application.

Not yet rated
1 user

Oriya fonts package

-Oriya script fallback fonts for Firefox (Android edition)
Addon installs Oriya font (Lohit-Oriya.ttf under SIL OFL 1.1 license) that enables proper rendering of
Oriya script on all sites (Facebook, Twitter, Google, etc.),

Rated 5 out of 5 stars (3)
65 users

Orkut Black Edition by Hemant Pawar Requires Restart

Black Theme of Orkut

Rated 4 out of 5 stars (3)
130 users

Orkut Helper Requires Restart

Orkut Helper is a small extension for your Mozilla Firefox browser that will make your stay on orkut much more pleasant add a lot of useful and interesting features into the website's interface.

Rated 4 out of 5 stars (7)
3 users

Orkut Linkifier Requires Restart

Converts links into genuine ones on orkut, making navigation easier.

Rated 2 out of 5 stars (6)
1 user

Orkut Scrap Helper Requires Restart

Orkut [http://www.orkut.com] is an online community that connects people through a network of trusted friends. ...

Rated 5 out of 5 stars (2)
1 user

Orkut Scrapbook Searcher Requires Restart

This adds a search box inside the orkut page for searching through scrapbooks,communities. The box is context sensitive and automatically changes between searching scrapbook,community threads and community thread messages...

Rated 1 out of 5 stars (3)
1 user

Orkut ScrapEasy Requires Restart

Makes replying to scraps at Orkut (www.orkut.com) easier...

Not yet rated
1 user

Orkut Scrapper Requires Restart

This extension helps Orkuting easier! . This has lots of features which enables scrapping easier...

Rated 5 out of 5 stars (2)
1 user

Orkut Toolbar Requires Restart

Orkut Toolbar helps you to format the text of your posts in the Orkut forums, easily access all common functions of orkut, create and manage custom signatures and insert and view images and flash movies in orkut posts and scraps.

Rated 4 out of 5 stars (22)
84 users

OS X Dock Icon Changer

Allows you to set a custom icon for your Firefox in you Mac OS X dock.

Not yet rated
5 users

oScan Requires Restart

This Extension is for a fan-project of mine for the browsergame OGame...

Not yet rated
3 users

Oscar HQIC HMP-Central Brampton FHT - Requires Restart

Link to Intellidash, HMP functionality

Not yet rated
5 users


Stay logged in to OSCARplus (McMaster University careers page). When installed, this addon will automatically remove the annoying "Keep me logged in" prompt, and you will stay logged in until you close all OSCARplus tabs.

Not yet rated
1 user

OSI: Servicio AntiBotnet Requires Restart

Servicio de la OSI que notifica amenazas relacionadas con botnets que se puedan estar produciendo desde tu conexión a Internet. Al instalar este plugin en tu navegador se ejecuta de forma periódica el servicio de chequeo de la OSI.

Rated 3 out of 5 stars (3)
931 users


OSIC Firefox addon

Not yet rated
5 users

OSM Links Requires Restart

This extension adds entries to the context menu, that can help you to send Links or Text that contain GPS-coordinates to the OSM Links website. This enables you to switch between many OpenStreetMap-based SlippyMaps much faster.

Not yet rated
142 users

OSM Smart Menu

Not yet rated
3 users