Multiple browser tabs create distraction. Each tab is a potential distraction. You switch between them, losing focus, forgetting what you were doing. Keep only one tab open at a time. When you need a new tab, close the old one first.
This rule forces focus. You cannot have email, social media, and your work all open at once. You must choose what you are doing right now and close everything else. This clarity improves both speed and quality of work.
The single tab rule also reduces mental clutter. Your mind is not trying to keep track of multiple things. It can focus on one thing fully. This makes work more enjoyable and more effective.
Try it today. Keep only one tab open at a time. When you need something else, close the current tab first. Notice how much more focused you become when you eliminate the distraction of multiple tabs.