Is Chrome Mask safe?

Low risk

Chrome Mask fetches a Chrome version number from a third-party server and injects it into request headers on user-whitelisted sites.

The extension spoofs the browser's User-Agent and Client Hints headers to make sites believe the user is running a specific version of Chrome. To keep that version number current, it fetches a plain-text file from chrome-mask-remote-storage.0b101010.services and stores the result locally with no integrity check. The fetched value is then used verbatim when rewriting outgoing headers on any site the user has whitelisted.

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

skyschubv10.1.0Firefox Add-ons
20Risk
Who publishes it

skyschub - no other listings under this identity

What this publisher told the store about itself, and the other listings that told it the same thing.

Publisher
skyschub

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 10.1.0. 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>

  • Store data in your browser

    storage

  • See the address and title of every tab you have open

    tabs

  • Watch every request your browser makes

    webRequest

  • Watch, block and rewrite every request your browser makes

    webRequestBlocking

Where it sends data

Destinations our analysis observed Chrome Mask 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.

  • chrome-mask-remote-storage.0b101010.services

    Chrome Mask sends data to chrome-mask-remote-storage.0b101010.services. No other extension we have analyzed sends data here.

Updated 2 November 2026amo-2853597