You should not check that box when the message appears in Chrome. However, if you do check it there is a way to fix the settings so that it shows the dialog again.
1. Log out of eTapestry by clicking the Log Out link in the upper right hand corner
2. Close all Chrome windows
3. Open a new Chrome window and log in to eTapestry
4. When you try to perform the action again it should give you that dialog box - do not mark the box