Modify Header Value

manifest.json

{
  "version": "0.1.8",
  "manifest_version": 2,
  "short_name": "modify-header-value",
  "name": "Modify Header Value (HTTP Headers)",
  "background": {
    "page": "lib/chrome/background.html"
  },
  "homepage_url": "https://mybrowseraddon.com/modify-header-value.html",
  "permissions": [
    "storage",
    "<all_urls>",
    "webRequest",
    "webRequestBlocking"
  ],
  "description": "Add, modify or remove a header for any request on desired domains.",
  "options_ui": {
    "open_in_tab": true,
    "page": "data/options/options.html"
  },
  "browser_action": {
    "default_popup": "data/popup/popup.html",
    "default_title": "Modify Header Value (HTTP Headers)",
    "default_icon": {
      "16": "data/icons/16.png",
      "32": "data/icons/32.png",
      "48": "data/icons/48.png",
      "64": "data/icons/64.png"
    }
  },
  "icons": {
    "16": "data/icons/16.png",
    "32": "data/icons/32.png",
    "48": "data/icons/48.png",
    "64": "data/icons/64.png",
    "128": "data/icons/128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "jid0-oEwF5ZcskGhjFv4Kk4lYc@jetpack"
    }
  }
}