ModBox – Modify headers, block requests

Tracking since Apr 9, 2026.

Changelog

• Apr 23, 2026
  description

  ⚡ ModBox
  
  🎉 Summary
  Create global or domain scoped rules to modify headers, block assets/domains & redirect. 
   Organise by folder and tab, with a focus on clean UX for developers.
  
  👌 Open Source
  https://github.com/hellraiserrob/mod-box
  
  🤟 Features
  - Create rules to modify HTTP request and response headers
  - Create rules to block HTTP requests & even block entire sites
  - Create rules to redirect requests to your own assets
  - Scope your tabs and rules to specific domains and url criteria
  - Organise your rules by a folder and tab structure, with drag'n'drop and clone
  - Quickly toggle individual rules, tabs, folders and globally
  - Export & Import rules by folder
  - Compact mode
  - No tracking, no commercial version, no funny business
  
  🚀 Change log
  
  0.2.3
  - (fix) export bug
  - (fix) reset rules bug
  
  0.2.2
  - (feature) edit in overlay
  - (fix) ux display issues 
  
  0.2.1
  - (feature) compact mode
  
  0.2.0
  - (feature) import / export rules 
  
  0.1.0
  - (feature) rule actions 
  - (feature) compress domain display
  
  0.0.9
  - (feature) rule drag'n'drop
  
  0.0.8
  - (feature) misc UX enhancements 
  
  0.0.7
  - (feature) rule reset moved into settings area with confirmation
  
  0.0.6
  - (feature) redirect requests
  - (feature) restore active tab
  - (fix) active folder bug
  
  0.0.5
  - (fix) cloning bug
  
  0.0.4
  - global rule validation
  - request/response operation
  
  0.0.3
  - drag'n'drop folders and tabs
  - tab level requestDomain
  - clone folder and tab
  
  0.0.2
  - add confirmation dialog before delete
  - add service worker to restore badge
  
  0.0.1
  - Initial release

  ⚡ ModBox
  
  🎉 Summary
  Create global or domain scoped rules to modify headers, block assets/domains & redirect. 
   Organise by folder and tab, with a focus on clean UX for developers.
  
  👌 Open Source
  https://github.com/hellraiserrob/mod-box
  
  🤟 Features
  - Create rules to modify HTTP request and response headers
  - Create rules to block HTTP requests & even block entire sites
  - Create rules to redirect requests to your own assets
  - Scope your tabs and rules to specific domains and url criteria
  - Organise your rules by a folder and tab structure, with drag'n'drop and clone
  - Quickly toggle individual rules, tabs, folders and globally
  - Export & Import rules by folder
  - Compact mode
  - No tracking, no commercial version, no funny business
  
  🚀 Change log
  
  0.2.4
  - (feature) note column
  
  0.2.3
  - (fix) export bug
  - (fix) reset rules bug
  
  0.2.2
  - (feature) edit in overlay
  - (fix) ux display issues 
  
  0.2.1
  - (feature) compact mode
  
  0.2.0
  - (feature) import / export rules 
  
  0.1.0
  - (feature) rule actions 
  - (feature) compress domain display
  
  0.0.9
  - (feature) rule drag'n'drop
  
  0.0.8
  - (feature) misc UX enhancements 
  
  0.0.7
  - (feature) rule reset moved into settings area with confirmation
  
  0.0.6
  - (feature) redirect requests
  - (feature) restore active tab
  - (fix) active folder bug
  
  0.0.5
  - (fix) cloning bug
  
  0.0.4
  - global rule validation
  - request/response operation
  
  0.0.3
  - drag'n'drop folders and tabs
  - tab level requestDomain
  - clone folder and tab
  
  0.0.2
  - add confirmation dialog before delete
  - add service worker to restore badge
  
  0.0.1
  - Initial release

Permissions & access

Permissions

storagedeclarativeNetRequest

Host access

*://*/*

Screenshots

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