var storageItem = browser.storage.local.get('username');
storageItem.then((res) => {
	if(res.username != void(0)){
		document.getElementById('login-form_username').value = res.username;
	}
});

storageItem = browser.storage.local.get('password');
storageItem.then((res) => {
	if(res.password != void(0)){
		document.getElementById('login-form_password').value = res.password;
	}
});
//TODO: Ennél biztosan van jobb megoldás
setTimeout(() => document.forms[0].submit(),500);