Also remove the componentMount to check hardware status. This would constantly check the status of the hardware wallet upon mounting, even after the wallet is unplugged.

Manual testing steps on Win10/Firefox

1. Do not plug in ledger
2. Select Ledger and attempt to connect even though one is not connected.
   2.1 Win10 users will need to cancel/close(x) the Windows Security window for usb.
3. After some time, the error TypeError: t is undefined will log to the console, and the error message won't render,

   metamask-extension/ui/app/pages/create-account/connect-hardware/index.js

   Lines 200 to 220 in 60d3d98

   	renderError() {
   	if (this.state.error === U2F_ERROR) {
   	return (
   	<p className="hw-connect__error">
   	{this.context.t('troubleConnectingToWallet', [
   	this.state.device,
   	// eslint-disable-next-line react/jsx-key
   	<a
   	href="https://metamask.zendesk.com/hc/en-us/articles/360020394612-How-to-connect-a-Trezor-or-Ledger-Hardware-Wallet"
   	key="hardware-connection-guide"
   	target="_blank"
   	rel="noopener noreferrer"
   	className="hw-connect__link"
   	style={{ marginLeft: '5px', marginRight: '5px' }}
   	>
   	{this.context.t('walletConnectionGuide')}
   	</a>,
   	])}
   	</p>
   	)
   	}