Firefox for Android is an app that uses any connection available on your device and there is no charge ''by Mozilla''. Unfortunately, Mozilla doesn't offer a mobile network service, so you will need to either use wi-fi (for example, at your hotel or a public hotspot) or arrange for local mobile service. If you have a U.S. table set up to use either AT&T or Verizon, it may be very expensive to "roam" in other countries. Some tablets have unlocked SIM Card slots, and that would allow you to pick up a local SIM card and use a local data plan. I suggest check TripAdvisor for advice on South Africa mobile services for travelers: * Telephones: http://www.tripadvisor.com/Travel-g293740-s605/South-Africa:Telephones.html * Forum: http://www.tripadvisor.com/ShowForum-g293740-i9186-South_Africa.html You also can check Lonely Planet, Wikitravel, and a variety of other sites.