Lately Google has been experimenting with the Chrome’s UI. This includes minor changes such as merging the refresh/go/stop buttons and major changes like having a side bar for tabs.
If you want to get the side tab here is what you do.
Note: Works with Google Chrome Dev Version and Chromium, but might not work with other versions
1.) Find your Google Chrome shortcut and right click it and go into properties
2.) Go the shortcut tab
3.) Where it says Target and add this to the end of it: “–enable-vertical-tabs”
4.) Click “Apply” and then “OK”
5.) Restart Chrome
6.) Right click on a tab and select “Use side tabs”
And that’s about it. Hopefully this UI change isn’t forced but an option. More info: http://code.google.com/p/chromium/issues/detail?id=31763