I am on the dev team for a Chrome extension and we noticed that its "onInstalled" event handler does not run properly on Orion.
Looking into it further, I discovered that the browser has a chrome.runtime.onInstalledReason (lowercase o) type defined instead of chrome.runtime.OnInstalledReason (uppercase O) as in Chrome and Firefox.
Extension background scripts should be able to access a valid definition of the chrome.runtime.OnInstalledReason type.
0.99.126.1-beta
Monterey (12)