Is Netmirror Extension safe?
Netmirror Extension silently injects a Referer header pointing to fmoviesunblocked.net for any request containing a covert URL token.
On install and browser startup, the extension uses Chrome's declarativeNetRequest API to add a dynamic rule that sets the Referer header to https://fmoviesunblocked.net/ for requests whose URL contains the string 'hakunaymatata'. This rule is not visible in the extension's UI. Additionally, a content script running on all pages listens for postMessage events and responds to any page that sends a NETMIRROR_CHECK message, confirming the extension is installed.
Part of this rating comes from analysis signals we haven't published as detailed findings yet.
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 3.20.5. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to. The current listed version is 3.20.7, which we have not unpacked yet.
Read and change your data on every site you visit
<all_urls>
Block and redirect the requests your browser makes
declarativeNetRequest
Store data in your browser
storage
Where it sends data
Destinations our analysis observed Netmirror contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.
- fmoviesunblocked.net
Netmirror sends data to fmoviesunblocked.net. No other extension we have analysed sends data here.