SeamonkeyNo.1

by alpha.omega101

39 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,189 reviews

18,410,658 users

Blocks annoying video ads on YouTube, Facebook ads, banners and much more.

Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).

NoScript Security Suite by Giorgio Maone

Rated 5 out of 5 stars 1,291 reviews

2,277,865 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.

DownThemAll! by Nils Maier, Federico Parodi, others

Rated 5 out of 5 stars 1,388 reviews

1,631,490 users

The first and only download manager/accelerator built inside Firefox!

Stylish by Jason Barnabe

Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Orkut, and many, many other sites. You can even customize Firefox and other programs themselves.

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.

Flagfox by Dave G

Rated 5 out of 5 stars 566 reviews

890,033 users

Displays a country flag depicting the location of the current website's server and provides a multitude of tools such as site safety checks, whois, translation, similar sites, validation, URL shortening, and more...

Web Developer by chrispederick

Rated 5 out of 5 stars 178 reviews

740,200 users

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

FoxyProxy Standard by Eric H. Jung

Rated 4 out of 5 stars 286 reviews

390,125 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.

EPUBReader by epubreader

Rated 5 out of 5 stars 129 reviews

471,568 users

With EPUBReader you can read ePub files just in Firefox. No additional software needed!

United States English Spellchecker by jooliaan

Rated 4 out of 5 stars 142 reviews

559,348 users

United States English Spellchecker for Firefox, Thunderbird and SeaMonkey by Kevin Atkinson and Geoff Kuenning.

To enable, right-click in a multi-line text box, select "Languages", then "English (United States)".

Spanish (Spain) Dictionary by tnarik, RickieES

Rated 4 out of 5 stars 101 reviews

277,470 users

Spanish/Spain Dictionary

FoxLingo - Translator / Dictionary by Linkular LLC

Download Now

Experimental

Rated 4 out of 5 stars 40 reviews

121,643 users

Web page and text translator, dictionary, grammar checker, auto translation, text-to-speech, and language learning services. Supports over 3,000 unique language pairs and 31 online translators, including Google Translate, Wikipedia, and Babylon. Lang...

Mozilla Archive Format, with MHT and Faithful Save by Christopher Ottley, Paolo Amadini

Rated 5 out of 5 stars 185 reviews

208,044 users

— Open web pages saved with Internet Explorer or other browsers (MHT)
— Save many tabs, video and audio reliably, in a single ZIP file (MAFF)
— Return to the original site you saved a page from, and more!

WorldIP - Geo Add-on with Security Features by Alrond

Rated 5 out of 5 stars 98 reviews

49,037 users

Professional Geo Add-on with security features and advanced network tools. Anti-phishing. Protection against DNS spoofing and fake sites. All DNS records for domain. The real location of web server, country flag, extended information about datacenter

AutoPager by Wind Li

Rated 5 out of 5 stars 353 reviews

126,816 users

AutoPager automatically loads next pages when you reach the end of a page. It works on a ton of sites,Google,Yahoo..
It works well with most other add-ons adblock plus, WOT and most of the greasemonkey scripts.
You can also try AutoPagerLite.
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