2FA Authenticator in Browser Firefox

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manifest.json
{
  "name": "2FA Authenticator in Browser",
  "version": "2.0.0.2",
  "manifest_version": 2,
  "description": "2-Factor Authenticator Tool in your Browser Sidebar",
  "icons": {
    "128": "icons/2FA128x128.png"
  },
  "browser_action": {
    "default_popup": "popup/popup.html"
  }
}

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