The add-on doesn't collect any private information in the background (it doesn't even collect crash reports or usage analytics).

The only data the add-on collects is the one you choose to enter yourself. You can enter data manually yourself or the add-on can pick up data from other websites (such as task name in Trello) when you press "Start timer" button in them. You can see what data is picked up and it's saved once you click "Stop timer".

If you don't wish for "Start timer" to appear, you can open Settings>Integrations and revoke access to all websites and disable all integrations.

All data you enter into the add-on is covered by our Privacy Policy (in a nutshell, we don't share your data with anyone). You can find the full policy here:

https://clockify.me/privacy