Window Splitter

worked for me, it does what it says it does. the main difference between this extension and individually dragging and dropping each tab is that Window Splitter works by closing all the tabs after the number you input, and reopening them in a new window - so each page has to re-load. just keep that in mind if you have anything important unsaved on the tabs after that #

Did not work at all on my Chrome [Version: 35.0.1916.153 ]

Simple extension. It works. Only a little bit useful, you can get a similar effect by slecting the tabs and dragging them out.