So, I tend to use Chrome for JavaScript app development, but since around version 15/17 (or there about), its not been possible to open the debugger console in a separate window in a two monitor development environment. Thing is, if you open Safari 6.0.4 (and maybe earlier) and you show the developer console, there is an option to 'detach into separate window' by clicking the multi-monitor icon beside the close button to the left of the console. The fault here seems to be Google IMHO. Don't know what happened and have filed a bug about it but will add if I do. Hope that helps a little.... otherwise, if you're committed to Chrome and not concentrating on user experience, you can dock the console to the right hand side of the page you are looking at. That way you get a potentially buggy DOM, but at least you can inspect your code on a running page. Ok. In fact that sucks, but it might help until Google get it sorted out.