All values apply to the browser.newtabpage.activity-stream.asrouter.messageProviders experiment
preference.
[]
[{"id":"cfr", "cohort": "one_per_day", "frequency": {"custom": [{"period": "daily", "cap": 1}]}, "type":"local","localProvider":"CFRMessageProvider","enabled":true}]
[{"id":"cfr", "cohort": "three_per_day", "frequency": {"custom": [{"period": "daily", "cap": 1}]}, "type":"local","localProvider":"CFRMessageProvider","enabled":true}]
[{"id":"cfr", "cohort": "one_per_day_amazon", "frequency": {"custom": [{"period": "daily", "cap": 1}]}, "type":"local","localProvider":"CFRMessageProvider","enabled":true}]
[{"id":"cfr", "cohort": "three_per_day_amazon", "frequency": {"custom": [{"period": "daily", "cap": 1}]}, "type":"local","localProvider":"CFRMessageProvider","enabled":true}]