ActionOnlyMessage
ActionOnlyMessage is a template for messages that silently execute an allowlisted Special Message Action with no UI. When delivered, ASRouter records a local impression, sends impression telemetry, and executes the action. This templatea should be used with caution, and actions such as PIN_FIREFOX_TO_TASKBAR should only be used in cases where an OS level prompt will ask a user’s consent to pin.
Control Messages
A control branch message with no content field is valid and will be delivered without executing any action. This allows Nimbus experiments to record exposure events on the control branch.
Example Message
{
"id": "EXAMPLE_ACTION_ONLY",
"template": "action_only",
"targeting": "true",
"frequency": { "lifetime": 3 },
"content": {
"action": {
"type": "CONFIRM_LAUNCH_ON_LOGIN"
}
}
}