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Element Inspector

In the DOM Inspector,quickly navigate to the any elements

Rated 5 out of 5 stars (32)
4,287 users
Updated March 25, 2017

Mail Redirect Requires Restart

Allow to redirect (a.k.a. "remail") mail messages to other recipients.

Rated 4 out of 5 stars (131)
43,075 users
Updated March 24, 2017

Classic Toolbar Buttons

'Classic Toolbar Buttons' add-on restores old toolbar button ui (known from Fx 4-7s small view, Fx 4-12s large view & Tb 5-14) for current Firefox, Thunderbird and Seamonkey versions.

Beta builds on versions page!

Rated 5 out of 5 stars (163)
39,610 users
Updated March 24, 2017

Web Messenger for WhatsApp™

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

Rated 5 out of 5 stars (5)
24,213 users
Updated March 23, 2017

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 (181)
114,436 users
Updated March 23, 2017

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 (39)
26,488 users
Updated March 23, 2017

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 (143)
346,920 users
Updated March 23, 2017

LastPass Password Manager Requires Restart

LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.

Rated 4 out of 5 stars (1,527)
800,640 users
Updated March 22, 2017

YouTube High Definition

YouTube High Definition is a powerful tool that will let you automatically play all YouTube videos in HD (High Definition), turn off annotations, change video player size, auto stop videos, auto mute videos, control embedded videos and much more.

Rated 5 out of 5 stars (241)
663,751 users
Updated March 21, 2017

Flagfox

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 (686)
476,276 users
Updated March 21, 2017

Open With Requires Restart

Quickly test out your web pages in Internet Explorer, Chrome, Safari, or Opera. Open With opens the current page in your other browsers with just one click. Add Open With to your menus, toolbars and developer toolbox today!

Rated 4 out of 5 stars (189)
23,536 users
Updated March 21, 2017

Open With Photoshop

Open With Photoshop is a new companion for web and graphic designers to open up any web image with Adobe Photoshop via a single and quick mouse click.

Rated 5 out of 5 stars (72)
16,921 users
Updated March 19, 2017

Flexible Sidebar

Flexible Sidebar allows to change sidebar width by dragging the handles.

Not yet rated
14 users
Updated March 19, 2017

Reader

Reader is the ultimate Reader tool for Firefox.

Rated 5 out of 5 stars (65)
34,852 users
Updated March 19, 2017

Save Button for Pinterest

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

Rated 5 out of 5 stars (21)
82,797 users
Updated March 19, 2017

Personas Rotator

Personas Rotator is a new companion for Personas Firefox add-on to change over 65000+ skins periodically on Firefox. What Will Your Browser Wear Now?

Rated 5 out of 5 stars (71)
6,736 users
Updated March 19, 2017

PlayFlash 32bit Requires Restart

Flash player plugin - unofficial xpi repack for 32bit browsers.
Use when official plugin installer is not suitable.
All binary files are copyrighted by their authors and distributed for free.

Rated 5 out of 5 stars (20)
10,630 users
Updated March 19, 2017

Who stole my pictures?

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

Rated 5 out of 5 stars (66)
19,018 users
Updated March 18, 2017

Images uploader for Wampi.ru

Upload any image to wampi.ru image hosting via right click menu

Rated 3 out of 5 stars (1)
59 users
Updated March 18, 2017

LookOut (fix version) Requires Restart

LookOut is a plugin which allows Thunderbird to interface with Microsoft's mail tools by decoding metadata and attachments encapsulated/embedded in a TNEF encoded attachment (aka winmail.dat).
Support: Thunderbird and SeaMonkey

Rated 4 out of 5 stars (11)
26,160 users
Updated March 18, 2017