Custom Modify Headers

by hjjoo389@gmail.com · Developer Tools

Manifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

Modify request/response headers per URL pattern, managed entirely from the toolbar popup.

Users

+7 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#227K

#190K among extensions

Version

0.1.0

updated 15 Sep 2026

Users

monthly, 1 months

Latest, 16 Oct 2026: 7 usersMove the mouse over the chart for any month

Ratings count

monthly, 1 months

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 Custom Modify Headers

Custom Modify Headers lets you add, edit, and reorder rules that modify HTTP request and response headers for any site you choose — all managed from a single toolbar popup. Features: • Add or modify request/response headers per rule • Scope rules with URL patterns or regex • Enable/disable individual rules, drag to reorder priority • "Solo" mode to isolate and test a single rule • Per-rule notes to keep track of what each rule does • Toolbar badge shows how many rules are currently active • Full English / Korean interface Privacy: This extension does not collect, transmit, or sell any data. All rules are stored locally in your browser using chrome.storage.local — never synced to an account, never sent to any server. There is no analytics, no telemetry, and no remote code execution. Privacy policy: https://alb3it.github.io/modify-header/ Built on Manifest V3's declarativeNetRequest API for reliable, efficient header rewriting.