manifest.json

  {
    "name": "LinkedIn Filter",
    "short_name": "linkedin_filter",
    "version": "0.4.0",
    "description": "Filter linkedin feed",
    "permissions": ["https://www.linkedin.com/*", "storage"],
    "background": {
      "scripts": ["background.js"],
      "persistent": false
    },
    "content_scripts": [{
     "matches": ["https://www.linkedin.com/*"],
     "js": ["./content-script.js"],
     "run_at": "document_idle"
    }],
    "browser_action": {
      "default_title": "LinkedIn Filter",
      "default_popup": "popup.html",
      "default_icon": {
        "16": "images/icon16.png",
        "32": "images/icon32.png",
        "48": "images/icon48.png",
        "128": "images/icon128.png"
      }
    },
    "icons": {
      "16": "images/icon16.png",
      "32": "images/icon32.png",
      "48": "images/icon48.png",
      "128": "images/icon128.png"
    },
    "manifest_version": 2
  }