Compare: HeaderMod vs HTTP Header Plugin

Stats Firefox HeaderMod Firefox HTTP Header Plugin
User count 248 3
Average rating 0.00 0.00
Rating count 0 0
Last updated 2025-08-09 2026-02-26
Size 20.55KB 67.76KB
Version 25.4 1.0.1
Short description
Inject, update, edit, modify, override HTTP headersAdds custom HTTP headers to requests based on user-defined rules. Automatically add or modify HTTP request headers based on URL matching rules. Supports contains, wildcard, and regex patterns. All rules are stored locally — no data is transmitted.
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