Is CORS Unblock safe?

Clean risk

CORS Unblock rewrites CORS response headers across all sites when its unblock mode is enabled.

When you turn on CORS Unblock, it enables browser network rules that apply to every URL and major resource type. Those rules set broad Access-Control-Allow-* response headers, including allowing any origin and common HTTP methods, so sites can make cross-origin requests that would otherwise be blocked. The reviewed source does not show the extension sending browsing data to an external server.

Jamsheerv1.3Chrome Web Store
1Risk
Who publishes it

Jamsheer - 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
Jamsheer
Registered address
Chalissery, Palakkad, Kerala 679536, IN
Registered contact
Jamsheer Moidu

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 1.3. 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 which of your requests its blocking rules matched

    declarativeNetRequestFeedback

Updated 30 September 2026hadoojkfknbjgoppkecpgamiajljiief