the connect button does nothing
Do you have any browser extensions that might block a popup window?
I find the browser redirect unreliable when using the desktop app.
If you instead login to Fibery from browser and connect from there it should work
On the mac app, several connections did not work for me in the past. What I usually do is to open Fibery in the browser, then it works.
Maybe Fibery app could provide some alert/instructions for this case or fix it the issue. But the alert for now could help already.