This guide will tell you how to Remove your Steam Browser History. Go through the guide and follow the step-by-step instructions to remove it.
The first thing you will need to do is open up Steam and then click on the Steam button on the top left corner of your screen. From the drop-down menu, you have to click on settings.
From the settings page, you have to click on the web browser on the left side of the screen and you will get two options to delete the web browser cache and delete web browser cookies on the right side. To delete the Steam web browser history, you have to click on Delete web browser cookies.