WhatsApp isn't available for Firefox OS but Facebook messages or LINE are good alternatives. We'll show how to get started chatting.

Note: There may be some third-party apps that can communicate with WhatsApp.

Facebook Messages

Quickly message anyone you know on Facebook.

Install Facebook from the Facebook Firefox Marketplace if you don't already have it.
Open the Facebook app, tap on the messages icon and select the new chat button.
Start to type the name of the person you want and a list of your friends will show up. When you see the one you want, just tap on it.
- To add another person to the chat, tap to the right of the first name and type the name of another friend. Then tap on the friend you want to add.
Now you can start chatting away. Don't forget to hit Send after you type your message.

LINE Messaging

Share images and chat with friends all over the world.

Note: LINE is immediately available to Telefónica customers and users in countries without Telefónica. If Telefónica is available in your country but you are not a customer, LINE will also be available to you in six months.

Install LINE by visiting the Marketplace on your Firefox OS phone.
Launch the LINE app. Follow the steps on the screen to register for a new account or log in if you already have one.
After you've logged in, here are a few ways to add friends:
- Automatically add contacts from your phone's address book: Select the auto-add option on the screen and click Next.
- Add friends one at a time: Touch the Friends icon on the top menu and clicking Add Friends to search for friends by ID.
You are now ready to start chatting! Touch the chat balloon on the top menu, and then New Chat.
Select the friends you want to chat with and touch Chat to open the message window.
If words aren't enough, you can express yourself through pictures. At the top of the chat window, touch the arrow to see options for that particular conversation. From here, you can send pictures, turn notifications on or off or block a person.