StumbleUpon for Firefox 4.21

Protect yourself from phishing sites, malware and more

Discover great new websites that match your personal tastes

A browser with built-in media download and sharing features

Archive and analyse your Twitter, Facebook and Google+ activity

Listen, record or download from various sources including video, radio and commercial streams

Conquer the world with this free, open-source variation on Sid Meier's Civilization

Record which PC programs you're using, and for how long

Record which PC programs you're using, and for how long

Record which PC programs you're using, and for how long

Take and edit screen grabs from just about any Windows application

Take and edit screen grabs from just about any Windows application

Create, format, merge, resize, move and otherwise organise your drive partitions with this free tool

Keep files synchronised between drives, computers and servers

An alternative spin on the Thunderbird email client