I use one chrome.alarm in the extension, which is installed in chrome.runtime.onInstalled:
chrome.alarms.clearAll(function() {
chrome.alarms.create(ALARM_CHECK_TAB, { delayInMinutes: 1.0, periodInMinutes: 1.0 });
});
Recently we noticed that at some point there is not a single alarm in the browser.
How can this be?