COOP Header Remover icon

COOP Header Remover

by tran_tien · Developer Tools
Manifest V3 Free
View in Chrome Web Store Data as of 16 Oct 2026

Removes Cross-Origin-Opener-Policy headers from all responses.

Users
21
+3 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#149K
#124K among extensions
Version
1.0
updated 17 Dec 2025

Users

monthly, 10 months
01021Dec 2025Jun 2026Oct 2026
Latest, 16 Oct 2026: 21 usersMove the mouse over the chart for any month

Ratings count

monthly, 10 months
001Dec 2025Jun 2026Oct 2026
Latest, 16 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About COOP Header Remover

Unlock Cross-Origin Interactions for Development and Testing Are strict browser security policies blocking your cross-origin workflows? The Cross-Origin-Opener-Policy (COOP) Remover is a lightweight, developer-focused tool designed to automatically strip the Cross-Origin-Opener-Policy header from all HTTP responses.

Growth

WindowUsersChangeRatingsRating
7 days+1+5.0%00.00
30 days+3+16.7%00.00
6 months+16+320.0%00.00

Version history

1 versions recorded
1.017 Dec 2025

Details

Category
Developer Tools
First seen
17 Dec 2025
Size
288 KB
Languages
en
Pricing
Free
Extension ID
hocohpdjbapbhdlmohnffbnhanmbbmkb

Permissions and risk

Moderate riskimpact 2, likelihood 2
Permissions
declarativeNetRequest
Site access
<all_urls>
Can read and change data on every website you visit.

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