API & MCP

Header Modify

Add custom HTTP request headers to any site — a lightweight, ModHeader-style header editor with profiles

As of July 2026, Header Modify has users in the Developer Tools category.

Usersno change0%
Ratingno change0%
— reviews
Reviewsno change0%
Version
1.0.0
Manifest V3

History

1 snapshots

Tracking since Jul 13, 2026.

Not enough history yet for this metric — the chart fills in as we collect more snapshots.
View as table
DateUsersRatingReviewsVersion
Jul 13, 20261.0.0
Now1.0.0

Permissions & access

Permissions
declarativeNetRequeststorage
Host access
<all_urls>

Screenshots

Header Modify screenshot 1Header Modify screenshot 2

About

Header Modify is a lightweight extension for adding custom HTTP request headers
to the sites you visit — similar to ModHeader, focused on simplicity.

Features
• Add custom request headers (name & value) to outgoing requests
• Organize headers into multiple profiles
• The selected profile is active; pin any profile with "Always on" to apply it everywhere
• Enable/disable individual headers with a toggle
• URL filter to limit which requests are affected
• Handy presets (Authorization, User-Agent, Referer, Cache-Control)
• Export / import your settings as JSON
• Available in 52 languages (follows your browser language)
• Alternative to Proxy SwitchyOmega, ModHeader, and X-Forwarded-For Header

Everything runs locally in your browser. No data is collected or sent anywhere.
ModHeader

Technical

Version
1.0.0
Manifest
V3
Size
104KiB
Min Chrome
88
Languages
52
Featured
No

Metadata

ID
agbgpchmmgfgdilhnaloggpmmdkecjbo
Developer ID
ufef121d069c43345fe2042d07c13d5c1
Developer Email
[email protected]
Created
Jul 12, 2026
Last Updated (Store)
Jul 12, 2026
Last Scraped
Jul 13, 2026
Website
Support URL

Data sourced from the Chrome Web Store · last verified Jul 13, 2026.