Fishbowl

Use Facebook from your desktop without opening your browser

SkypeLogView

Find out all the data that Skype stores

Viber

Windows client of the chat and video call app

Skype

Text messages, calls and video calls to and from phones and PCs

ooVoo

VoIP client to chat with your contacts

VoipWise

Very complete VoIP client

Zello

Send voice messages from your PC for free

Clownfish Voice Changer

Change your voice in real time

QuteCom

SIP softphone to speak and send free messages

Spaz

Simple Twitter client

Zoom

Workplace Video Calling App

Tango

VoIP client for voice and video calls

Skype Portable

The portable version of the popular VoIP client

SoliCall

Reduce the background noise in voice conversation over the net

Jitsi Meet

App for making VoIP and video calls

2Peer

Share your files in your own private net through Internet

Video DownloadHelper

Download videos from the Internet by means of Firefox

Bookmark Duplicate Detector

Eliminate you duplicate bookmarks from your favorite browser

IE Tab

View websites as if you visited them with Internet Explorer

Adblock Plus for Firefox

Block Internet adverts

Shockwave Player

The add-on to play multimedia Flash contents in 3D

User Agent Switcher

Tool to switch the user agent used

Adobe Flash Player (Chrome, Firefox & Opera)

The web multimedia player

Sparky Alexa Toolbar

Have Alexa's information in your browser

TV-FOX

More than 2,500 TV channels live from Firefox

Zotero

Complete manager for citations

Autofill Forms

Fill in forms automatically

Ank Pixiv Tool

Download manga images from Pixiv

FireShot

Take screen captures from Firefox

Buffer

Share on social networks the web contents you visit

WebMail for Thunderbird

Use Thunderbird to manage your webmail