Is Kuponer.cz safe?
Kuponer.cz lets any website trigger hidden background tabs to URLs supplied through its content-script message relay.
Kuponer.cz injects a content script on every site and relays page-created events to its background worker. When a page supplies an open-tab action, the background code can open an inactive tab to the supplied URL, close it after loading, and reload the user's active tab. The code does not name a fixed data recipient for this path because the destination URL is supplied by the page that sends the event.
Part of this rating comes from analysis signals we haven't published as detailed findings yet.
Who publishes itKuponer, s.r.o. - no other listings under this identity
Kuponer, s.r.o. - no other listings under this identity
What this publisher told the store about itself, and the other listings that told it the same thing.
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 1.5.2. 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 every site you visit
<all_urls>
Run its own code inside the pages you visit
scripting
Store data in your browser
storage
See the address and title of every tab you have open
tabs