@Fab

When I go to my router's web interface a login requester appears. I noticed that if I click a link on the web page being shown then OWB starts meditating. It's strange because I would expect the requester to block input to the window underneath.

It's not a serious problem, I only noticed it by accident.

Maybe you could share some details about the router? Used OWB with the webinterfaces of three different routers here with no issues.

It's very unlikely to be anything to do with the router.

The requester is generated because of basic access authentication. OWB is asking for details in reply to a 401 response.

Ok, I'm not able to reproduce what you are seeing here, clicks to the webpage are registered but nothing happens until the auth requester is gone.