What data is being collected for the free captcha solving chrome extension?

The data specified below is taken from the scientific paper, "Predictive Web Automation Assistant for People with Vision Impairments".

* Value Change: triggered by JavaScript onchange, or onreset events: change of value of an HTML form field such as textbox, radio button, checkbox, selection list, etc.
* Invocation: triggered by (a) JavaScript onclick event: a mouse click (except on a form submit button), or (b) JavaScript keypress event: a press of the enter key (except in a form field, or a form submit button).
* Form Submission: triggered by a JavaScript onsubmit event.

With every event a timestamp, the URL, viewport size, scroll position, a copy of the page source code, tab id, CSS selector of relevant elements and the id of the chrome extension is being sent.

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