Recently Updated Extensions

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Cyceam

Earn extra money while browsing online! Get rid of ads, and optionally tip your favorite sites.

Not yet rated
5 users
Updated September 27, 2016

WhatsApp Web Messenger

Whatsapp Web Messenger brings WhatsApp right into your browser to chat with your friends.

Rated 5 out of 5 stars (2)
27,831 users
Updated September 27, 2016

Messenger for Facebook™

Messenger for Facebook™ lets you bring a Messenger right into your browser to chat with your friends.

Rated 5 out of 5 stars (35)
31,458 users
Updated September 27, 2016

Download Status Bar

If you are the kind of person who likes to have total control over every aspect of your downloads, "Download Status Bar" is the add-on you are looking for.

Rated 5 out of 5 stars (330)
231,061 users
Updated September 26, 2016

FM Scene

FM scene is the first add-on for the free browser Mozilla Firefox (and SeaMonkey) that makes all fansites of the FIFA Manager by EA Sports accessible with just one click. The FIFA Manager is a quite popular soccer manager simulation in Europe.

Rated 5 out of 5 stars (3)
54 users
Updated September 26, 2016

YouTube Flash Video Player

YouTube Flash Video Player is a powerful tool that will let you choose Flash video player as default YouTube video player.

Rated 5 out of 5 stars (50)
288,043 users
Updated September 25, 2016

Theme Font & Size Changer

Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.

Rated 5 out of 5 stars (227)
100,117 users
Updated September 25, 2016

uBlock Origin

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

Rated 5 out of 5 stars (653)
1,460,445 users
Updated September 25, 2016

DownThemAll! Featured

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

Rated 4 out of 5 stars (1,794)
1,240,641 users
Updated September 24, 2016

ע\ع (Ayn\Ayn) Lookup [former ע\ع Converter] Requires Restart

Transliteration of Arabic/Syriac to Hebrew writing system and a powerful interface to many dictionaries and encyclopedias : Arabic>He,En; Syriac>En; Hebrew>Ar, En, Ru; Yiddish>En; Wiki,
Etymology, Thesaurus ... . Select text and use context menu.

Rated 5 out of 5 stars (4)
65 users
Updated September 24, 2016

Share Button for Pinterest

Send images and pages to your Pinterest account quickly and easily with Share Button for Pinterest.

Rated 5 out of 5 stars (16)
77,886 users
Updated September 23, 2016

SmartTemplate4 Requires Restart

SmartTemplate4 offers an easy way to automatically create customized replies by auto-inserting various mail headers. Templates can be created for every account as well as for the default (all email accounts). Also supports the Stationery Add-on.

Rated 5 out of 5 stars (51)
19,724 users
Updated September 23, 2016

Thunderbird Integration for JIRA Requires Restart

This is a plugin for Thunderbird 3.3+ which is able to create Atlassian Jira issues out of e-mails or add the content of an e-mail as a comment on an Jira issue.

Rated 3 out of 5 stars (13)
471 users
Updated September 23, 2016

Open With Vivaldi Browser

Open With Vivaldi Browser sends pages from Mozilla Firefox to Vivaldi browser.

Rated 3 out of 5 stars (1)
136 users
Updated September 23, 2016

HTTPS Everywhere Requires Restart

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.

Rated 4 out of 5 stars (113)
216,376 users
Updated September 22, 2016

Google Hangouts Web Messenger

Google Hangouts Web Messenger brings Google Hangouts right into your browser to chat with your friends.

Not yet rated
1,265 users
Updated September 22, 2016

Youtube Best Video Downloader 2 - MP3 MP4 M4A AAC

Now with 1080p Full-HD Support!

Download every YouTube video you want and you can download them as Full-HD MP4, FLV, 3GP, MP3, M4A and AAC formats. Easy & Fast!

Rated 3 out of 5 stars (46)
118,439 users
Updated September 22, 2016

ChatZilla zh-CN Language Pack Requires Restart

ChatZilla zh-CN language pack for ChatZilla 0.9.92

Rated 5 out of 5 stars (11)
322 users
Updated September 22, 2016

Google Cache

Google Cache lets you visit retrieve the web page from Google Web Cache when the site is offline.

Not yet rated
205 users
Updated September 22, 2016

Restart Application Button

Restart Application Button lets you restart your Firefox and SeaMonkey application by a quick toolbar button click.

Rated 4 out of 5 stars (3)
602 users
Updated September 22, 2016