Ok, this is gonna sound weird but please bear with me.

In Shop Search when you click the Buy button for a user shop you'll get a little message saying "You bought 1 item name" but when you click Buy for an NPC shop it goes to a new page.

I'd like to know if there's a way to buy from the user shop button to make it open like the NPC one does. I've been having trouble with it lately and it's making my questing very stressful.

No, I don't think so, but the issues with the buy button have been reported in P&B

Yeah, me and one other person I'm aware of. Seems to be a Firefox problem. I'm just looking for another way around it for now. I've experimented with various addons as well as right clicking, holding ctrl and clicking with the scroller.