Is fjfclchn safe?

Question

Is fjfclchn safe?

Accepted Answer

fjfclchn is high risk. When the Download All PDFs extension is first installed, it generates a 16-character identifier and saves it permanently in your browser's local storage. This ID does not change between sessions or browser restarts. Every browsing record the extension transmits to the developer's server includes this identifier in the 'uid' field, allowing the developer to build a complete, linked history of every page you have visited across all time. Every time you navigate to a web page, the Download All PDFs extension collects the full URL of the page you are visiting, where you came from (the referrer URL), the page content type, and a list of any PDF links found on the page. This data — along with a persistent identifier that tracks you across sessions — is transmitted in a POST request to a server operated by the extension developer. This occurs on all HTTP and HTTPS pages, not just pages where you use the PDF download feature.

Is fjfclchn safe?

Findings