(PSN)Draxwen

I'm curious if it's possible to link my playstation warframe account to my steam one in preparation for cross save sometime in the next 30-40 years I've tried following instructions to do this on the website but it just leads to a dead end and I've been told it let's you share your friends list does this need to be done in game? Or can I do it on the website? They use the same email does that matter at all? Thanks