manifest.json

{
   "background": {
      "scripts": [ "popup.js" ]
   },
   "browser_action": {
      "default_icon": {
         "16": "icon16.png",
         "24": "icon24.png",
         "32": "icon32.png"
      },
      "default_title": "imgur to 0imgur"
   },
    "content_scripts": [
      {
        "matches": [
          "*://*/*"
        ],
        "js": [
          "content.js"
        ],
        "run_at": "document_idle",
        "all_frames": true
      }
    ],
   "description": "This extension redirects all imgur URLs to 0imgur, so you can access it from restricted countries and / or ISPs. Also works with embedded images on other web sites.",
   "manifest_version": 2,
   "name": "Imgur to 0Imgur",
   "permissions": [ "tabs" ],
   "version": "1"
}