manifest.json

{
  "manifest_version": 3,
  "name": "SO Focused",
  "version": "1.3",
  "description": "Hides distracting sidebar elements on StackOverflow and related sites.",
  "author": "Rob Cowsill",
  "homepage_url": "https://github.com/rcowsill/SO-Focused",
  "icons": {
    "48": "icons/SO-Focused-48.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.stackoverflow.com/*",
        "*://*.stackexchange.com/*",
        "*://*.superuser.com/*",
        "*://*.serverfault.com/*",
        "*://*.askubuntu.com/*",
        "*://*.stackapps.com/*"
      ],
      "run_at": "document_start",
      "css": [
        "css/hide-distractions.css"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{07a74b57-b43e-46c3-9db4-892298ae1a4d}",
      "strict_min_version": "109.0"
    },
    "gecko_android": {
      "strict_min_version": "113.0"
    }
  }
}