Too many open tabs: If you’ve got multiple websites open at once, your browser is going to get bogged down. Too many plugins and extensions: You most likely have unused or unnecessary extensions that you don’t need. The most common reasons your browser is slow include: Whether you’re on Chrome, Firefox, Edge, Safari, or IE, too many extensions - or a nasty bit of malware - will always slow things down. Every browser is a bit different, but slow performance can affect them all.
