Is OpenSubtitles for Netflix safe?

Medium risk

OpenSubtitles for Netflix stores OpenSubtitles login credentials in Netflix page localStorage.

When a user signs in to OpenSubtitles from the Netflix overlay, the extension saves the entered username and password inside the Netflix page's localStorage. That storage is tied to the Netflix website origin, so scripts running on Netflix pages can read the serialized credentials.

Part of this rating comes from analysis signals we haven't published as detailed findings yet.

OpenSubtitles for Netflixv1.20Chrome Web Store
40Risk

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

What it can do

Permissions this extension asks for, as declared in version 1.20. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

  • Read and change your data on api.opensubtitles.org

    https://api.opensubtitles.org/*

  • Act on the current tab, but only after you click the extension

    activeTab

Updated 30 September 2026kcdnnmhalbjbccempnhabdaeilabmdop