Version: (using KDE 4.1.1) OS: MS Windows Installed from: MS Windows Hello. The problem is that windows created by javascript (like alert, input) are application-modal windows. They should not block the whole application, only the page that is currently visited. Imagine page that is doing something like this: while (true) alert('he he'); It is really hard to close such page. For testing go to: http://www.kadu.net/~vogel/alert.html It is needed to kill the whole application. If only the page itself would be blocked it'll not be any problem.