I think there most likely will be a web browser on the Nintendo Switch. The Switch's web browser maybe similar to the web browser on the Wii U.
I think the Switch web browser would not be as good as Firefox, Maxthon, and Chrome for mobile, and desktop web browsers for Windows where you can use plug-ins like Adobe Flash, Java, Unity Player, and Microsoft Silverlight which are plug-ins which are needed to display content like videos, games, music, and apps which are not made with HTML5 and JavaScript.
I think the Switch web browser would not be as good as Firefox, Maxthon, and Chrome for mobile, and desktop web browsers for Windows where you can use plug-ins like Adobe Flash, Java, Unity Player, and Microsoft Silverlight which are plug-ins which are needed to display content like videos, games, music, and apps which are not made with HTML5 and JavaScript.