.. _ca-android: ================================ Trusting Your Root CA on Android ================================ Complete this guide to trust your server's Root Certificate Authority (Root CA) on Android. .. warning:: You must use `Firefox Beta `_ on Android. The regular Firefox app will not work. .. warning:: This guide only applies to Android phones running Android v13+, as well as phones running CalyxOS, GrapheneOS, or LineageOS (v19+). #. Ensure you have :ref:`downloaded your Root CA ` #. Tap **Settings > Security > More security settings > Encryption & credentials > Install a certificate > CA Certificate > Install Anyway** and select your custom-named ``adjective-noun.local.crt`` certificate. .. figure:: /_static/images/ssl/android/droidLAN2.png :width: 15% :alt: Install certificate #. If using Firefox (recommended), complete :ref:`this final step `