Unvisit

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Unvisit",
  "description": "Mark link as unvisited by removing the url from the browsers history",
  "version": "1.0",
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "background": {
    "scripts": [
      "events.js"
    ],
    "persistent": false
  },
  "permissions": [
    "history",
    "contextMenus"
  ]
}