Hey there!
It might be common knowledge but i found it useful.
So to get a web browser ingame all you have to do is add WoW (or any game) to steam and it Shift+Tab and there will be a browser option.
Here are the steps if you cant figure it out.
1. Open Steam Library.
2. Click "+Add a Game".
3. in the window that pops up select add a non-steam game.
4. That will bring up a panel with all installed programs on your computer. If it is not on this list click browse and direct the path to WoW.Exe
5. Once that is done. You are set, make sure to open it by steam every time which can be done by going into your steam library or right clicking it in your library and creating a desktop shortcut.
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I hope this helps some people
Thanks. =D
~ Garfeildfan