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Open With IE + Edge

View links, pages, and bookmarks in IE, Edge or any other browser. Modify any menu, browser name or location. Incognito/private browsing mode is also supported. Works for all Firefox locales/languages.

Not yet rated
1 user
Updated July 26, 2016

ActiveInbox for Gmail

Use Gmail to get things done.

ActiveInbox turns Gmail into a GTD task manager, where your emails are your tasks.

It lets you achieve inbox zero, never forget an important email, and move projects forward with ease.

Rated 4 out of 5 stars (139)
680 users
Updated July 26, 2016

NoScript Security Suite Featured

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.

Rated 5 out of 5 stars (1,589)
2,009,623 users
Updated July 26, 2016

ColorfulTabs

The first addon you should be installing on a fresh Firefox install. A must have. The most beautiful yet the simplest add-on that makes a strong colorful appeal. Colors every tab in a different color.

Rated 4 out of 5 stars (1,006)
224,137 users
Updated July 25, 2016

Mail Merge

Mass Mail and Personal Mail

Rated 5 out of 5 stars (142)
51,088 users
Updated July 25, 2016

No Resource URI Leak No Restart

Deny resource:// access to Web content: We fill the hole to defend against fingerprinting. Very important to Firefox privacy. A direct workaround for bugzil.la/863246

Rated 5 out of 5 stars (13)
4,071 users
Updated July 25, 2016

Gmail Mail Sidebar No Restart

Gmail Mail Sidebar brings Gmail right into your Firefox Sidebar.

Rated 5 out of 5 stars (3)
9,479 users
Updated July 24, 2016

QuickFolders (Tabbed Folders)

The "Swiss army knife" of folders. Turn your favorites into tabs - open folders and subfolders, move mails without scrolling around or searching. powerful + easy.

See new mail at a glance after automatic filtering - supports quickFilters addon!

Rated 5 out of 5 stars (112)
23,527 users
Updated July 24, 2016

YouTube Video Player Preview No Restart

YouTube Video Player Preview lets you preview YouTube videos when you hover over thumbnails.

Rated 5 out of 5 stars (1)
74 users
Updated July 24, 2016

Who stole my pictures?

Search for copies of the images using Yandex.ru, Tineye.com, Google.com and VK.com via right click menu

Rated 5 out of 5 stars (58)
17,316 users
Updated July 23, 2016

Remote XUL Manager No Restart

Manages the Remote XUL whitelist to allow websites and local files to load XUL content. For versions compatible with Firefox 41 and lower, see All Versions page below.

Rated 5 out of 5 stars (36)
58,288 users
Updated July 23, 2016

Click-to-Play Manager No Restart

Manages the Click-to-Play domain whitelist.

Rated 4 out of 5 stars (11)
3,019 users
Updated July 23, 2016

Addons Manager Hilite No Restart

Remembers last selected (hilited) extension/theme/plugin/userstyle in Add-ons Manager. Version 3.0 also includes sorting buttons. Turn off/on the add-on selection list box and/or fine tune behavior via its Options.

Rated 5 out of 5 stars (18)
711 users
Updated July 23, 2016

S3.Google Translator

S3.Google Translator adds the power of Google Translate’s automatic translations to your browser!
It supports translation of selected text, entered phrase or whole webpage between any of 80+ languages.

New Feature: Language learning!

Rated 5 out of 5 stars (346)
344,455 users
Updated July 22, 2016

Tategaki

Tategaki allows vertical writing-mode on mail compose window.

Not yet rated
14 users
Updated July 22, 2016

Send Later

True "Send Later" functionality to schedule the time for sending an email.

Rated 5 out of 5 stars (69)
60,937 users
Updated July 21, 2016

Flagfox No Restart

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...

Rated 5 out of 5 stars (656)
471,012 users
Updated July 21, 2016

HTTPS Everywhere

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 (102)
189,236 users
Updated July 21, 2016

Cert Viewer Plus

Certificate viewer enhancements: PEM format view, trust configuration

Rated 4 out of 5 stars (6)
4,266 users
Updated July 20, 2016

Browser Backgrounds

Browser Backgrounds is the new Firefox extension that lets you install backgrounds directly on your browser.

Rated 5 out of 5 stars (41)
8,125 users
Updated July 20, 2016