Opera Inside SeaMonkey

by d4rkn1ght

65 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,808 reviews

2,102,911 users

Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page...

uBlock Origin by Raymond Hill

Rated 5 out of 5 stars 390 reviews

818,786 users

Finally, an efficient blocker. Easy on CPU and memory.

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 969 reviews

1,255,329 users

Customize the way a web page displays or behaves, by using small bits of JavaScript.

Ghostery by Ghostery

Rated 4 out of 5 stars 1,267 reviews

1,555,659 users

Enjoy a faster, safer and cleaner browsing experience.

NoScript Security Suite by Giorgio Maone

Rated 5 out of 5 stars 1,532 reviews

2,373,716 users

The best security you can get in a web browser!
Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.

Lightning by Mozilla Calendar Project

Organize your schedule and life's important events in a calendar that's fully integrated with your Thunderbird email. Manage multiple calendars, create your daily to do list, invite friends to events, and subscribe to public calendars.

HTTPS Everywhere by EFF Technologists

Rated 4 out of 5 stars 57 reviews

150,863 users

Encrypt the web! HTTPS Everywhere is a Firefox extension to protect your communications by enabling HTTPS encryption automatically on sites that are known to support it, even when you type URLs or follow links that omit the https: prefix.

FireFTP by Mime Čuvalo

Rated 4 out of 5 stars 939 reviews

523,841 users

FireFTP is a free, secure, cross-platform FTP/SFTP client for Mozilla Firefox which provides easy and intuitive access to FTP/SFTP servers.

Check out my new project, FireSSH!

FoxyProxy Standard by Eric H. Jung, groeg, others

Rated 4 out of 5 stars 353 reviews

282,490 users

FoxyProxy is an advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. For a simpler tool and less advanced configuration options, please use FoxyProxy Basic.

Web Developer by chrispederick

Rated 5 out of 5 stars 222 reviews

519,921 users

The Web Developer extension adds various web developer tools to the browser.

ImportExportTools by Paolo "Kaosmos"

Download Now

Experimental

Rated 4 out of 5 stars 130 reviews

354,881 users

Adds some tools to import and export folders and messages

SQLite Manager by lazierthanthou

Rated 5 out of 5 stars 43 reviews

195,897 users

Manage any SQLite database on your computer.

Speed Dial by Josep del Rio

Rated 4 out of 5 stars 1,256 reviews

417,792 users

Direct access to your most visited websites

ReloadEvery by Jaap Haitsma

Rated 4 out of 5 stars 683 reviews

164,364 users

Reloads web pages every so many seconds or minutes. The function is accessible via the context menu (menu you get when you right click on a web page) or via tab context menu (right click on the tab)

Password Exporter by Justin Scott (fligtar), Jorge Villalobos

Rated 4 out of 5 stars 329 reviews

195,575 users

This extension allows you to export your saved passwords and disabled login hosts using XML or CSV files that can be imported later.
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