In Google Chrome on both Windows and Ubuntu, pinned tabs are saved upon closing and reopened automatically the next time Chrome is started. With OS X, pinned tabs are not saved properly in Chrome and disappear with new browser sessions. Why is this behavior different and how can I get my pinned tabs to save?
I'm not an expert on OS X, but it seems that if you use the red 'x' to close the window, the application itself is not closed, only that window of the application. If you were to use Command + Q or quit via the application menu, the pins do save as expected.