Unexpected multiple onStartup events in published extension

[Browser Extenstion]

Hi everyone,

Has anyone experienced multiple triggers of the chrome.runtime.onStartup event?

In my extension, I have a listener on onStartup that makes a request to a server. However, I’ve noticed that this request is sometimes sent multiple times — as if the event is firing more than once.

What’s strange is that this only happens in the published version from the Chrome Web Store. When I load the exact same extension locally in developer mode, it behaves correctly and the request is sent only once.

Has anyone run into this behavior or know what might cause it?

Thanks in advance!