Un bon firewall pour Android (qui au passage bloque les pub) et ne nécessite pas de root.

Développé par Marcel Bokhorst, développeur de Xprivacy (Xposed).

Code source : https://github.com/M66B/NetGuard

KDE gui for ufw (Firewall)

The Firefox add-on China Channel offers internet user outside China to surf the web as if they were in China. Take an unforgetable virtual trip to China and experience the technical expertise of the Chinese Ministry of Information Industry (supported by western companies). It's open source, free and easy.

"Test any website and see real-time if it's censored in China!