Ive blocked so many award baiters on steam, when an update for one of the bigger games comes out the first few comment pages are filled with "you’ve blocked this user. If you’ve blocked enough of them the comments get usable again.

Ok, sorry for the misinformation. In the beta there actually was a Browser available but since then it has been removed and there are currently no ways to reenable it.

If the overlay is activated in the Steam options, press shift + tab in any steam game and then click the Browser symbol in the bar .

also through the overlay? There is an integrated browser.