On 06/10/2024 03:04, Mike Castle wrote:
For me, the biggest signal is GMail and similar apps will go into a "You are not online" state.
Web applications may intentionally use various tricks to detect idle even though the following API is unavailable in Firefox
<https://developer.mozilla.org/en-US/docs/Web/API/Idle_Detection_API>Paused downloads is a more apparent symptom, however I have not tried to reproduce it (I prefer wget that sets file modification time accordingly to Last-Modified header).
Firefox generates events in response to connection changes in NetworkManager:
<https://developer.mozilla.org/en-US/docs/Web/API/Navigator/onLine>