Multicolumn for Feedly

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Multicolumn for Feedly",
  "description": "Display feedly text in multi-column layout.",
  "manifest_version": 2,
  "version": "1.4.3",
  "permissions": [
    "*://feedly.com/*"
  ],
  "icons": {
    "128": "mff128.png"
  },
  "content_scripts": [
    {
      "css": [
        "mff.css"
      ],
      "matches": [
        "*://feedly.com/*"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ]
}