Is it safe to manage multiple bitcoin wallets from one pc?
probably it's safe but i suggest to make some backup always such the private key and etc to assure everything will be ok especially when you want to login to your another bitcoin wallet . And also by the way always stay away on some site that always provide links especially if it's suspicious, because mostly nowadays are phishing links from hackers to hack our personal information and etc. So be careful mate.
absolutely right, a little extra be sure to always keep private keys so that people do not know to keep in a safe place. because we can only open private keys. so it's better to backup