Thanks for playing!
Firefox is at the least very "special". Its less performant and zooming doesn't work there. However the game itself should start.
The books are right click to consume (as in learn). It seems i forgot to add the little info on the tooltip that says that (potions have this for example). I could put in a prompt to confirm, just because books are pretty valuable in the beginning.
Just like the books, i tried to imitate good old Diablo 1 with the dialogues. Apart from the nostalgia, i think the scrolling text is a bit suboptimal and i would like to remake the whole system. The scroll speed is supposed to be faster when there is less text, but i see why thats not necessarily a good thing.
The click events are a bit iffy: Holding a mouse button down doesn't repeat an action right now. I tried to implement this but for some reason a single click was triggered twice then. Once i overcame that little technical hurdle, an auto attack can become reality.
Im a bit late here, so your screenshot is dead. I will try to reproduce your scenario though.
Made it originally with React just to learn it, which might be the reason why older components may be less than optimal and some things need longer to fix/optimize. Now it's bundled with tauri so i can at least tell people with problems in Firefox to have a workaround by downloading the game :D