But in Chrome, when you get a popup that ought to be a new tab, you can set the situation right. Click on the Chrome icon in the top left corner of the new window and then select "Show as Tab." BOOM! You did it. Now you can drag the tab into your tab bar at the top, or leave it as a new window.
And in case you didn't know, any tab can be 'drug' into a new window, and windows can be drug, by their tab, into the tab bar. Enjoy!
Very cool!