Chrome on my laptop, Opera on my tablet. Firefox actually isn't a good choice anymore because it doesn't protect you from unwanted viruses and malware like Chrome does. Chrome has a feature called a sandbox which isolates your browser, and everything that it opens, from the rest of your computer and nothing can leave that sandbox without your express permission so you cannot get malicious software from Chrome unless you stupidly agree to download something supicious. Unlike Firefox where you can easily get them from just about anything without your even knowing because it has no such protection.