Simple Discard Tab

Discards tabs that are inactive for 3 minutes to free up memory, while still preserving the tabs state when you click on them again. No privileged permissions required.

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manifest.json

{
  "name": "__MSG_extensionName__",
  "author": "Terry",
  "version": "0.3.3",
  "description": "__MSG_extensionDescription__",
  "manifest_version": 2,
  "default_locale": "en",
  "icons": {
    "24": "icon_24.png",
    "48": "icon_48.png",
    "96": "icon_96.png"
  },
  "permissions": [
    "alarms",
    "contextMenus",
    "notifications",
    "storage"
  ],
  "optional_permissions": [
    "tabs"
  ],
  "applications": {
    "gecko": {
      "strict_min_version": "58.0"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "24": "icon_24.png",
      "48": "icon_48.png",
      "96": "icon_96.png"
    }
  },
  "options_ui": {
    "chrome_style": true,
    "page": "options.html"
  }
}