Any chance of making a Samsung Galaxy Tab 10.1 (GT-P7500) usable today?

I forgot I owned one of these and found it in my closet while cleaning things out recently. I was thinking about giving it to one of my nephews so he can use it for internet browing. The problem is that it's running Android 4 so the browser is wildly out-of-date and unusable.

I'm not the most experienced with Android modding, so I'd appreciate any help.

Thanks.