Is Browser Locale Switcher safe?

Clean risk

Browser Locale Switcher changes the Accept-Language header and reported browser language on every site.

The extension installs a declarativeNetRequest rule for all main-frame, sub-frame, and XMLHttpRequest traffic, setting the Accept-Language header to the selected stored locale. It also injects scripts on all sites to mirror that locale into navigator.language and navigator.languages.

ivan.kmkv1.0.3Chrome Web Store
2Risk

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 1.0.3. 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

  • Block and redirect the requests your browser makes

    declarativeNetRequest

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

    tabs

declarativeNetRequestWithHostAccess
Updated 30 September 2026beniknojanbkfpoggnenhdnpjjknjjeo