Hide Fixed Elements

Adds a button which can be clicked to make "fixed" elements (that is, headers/footers/sidebars that stay stuck to one part of the window) disappear, opening up more space to view the page content.

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manifest.json

{
  "manifest_version": 2,
  "name": "Hide Fixed Elements",
  "description": "Hide fixed elements on a page to open up more viewing space",
  "version": "1.3",
  "applications": {
    "gecko": {
      "id": "[email protected]"
    }
  },
  "icons": {
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "browser_action": {
    "default_icon": {
      "48": "icon48.png",
      "128": "icon128.png"
    }
  },
  "commands": {
    "_execute_browser_action": {}
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "permissions": [
    "activeTab"
  ]
}