Hello! I apologize for my accent in English. I work in Mozilla Firefox, version 3.6.24. There is a need to make a full log of events (user actions) that took place on the web-page during the session: the cursor movement and clicking the "mouse" enter any values in the text fields, change the size of HTML-elements, the acquisition of focus elements and its displacement, and so on. Question: can this task be implemented in principle, if so, please tell me the approximate direction. Was thought to act via AddEventListener(/*all_event*/, ~console.log()), but as something irrational comes out. Another idea-to act through the registration of telemetry (Event pings), but until the end of it could not yet develop - is this the right direction? I think that the problem should have a solution - after all, the browser sees events in any case, even if they do not have a handler - right? Thank you for your time and attention! Sincerely, Alexey!