1. Enable middle-click and ctrl-click default tab behavior, which is to open a new tab behind the current tab in the background. For left and right click, open the new tab behind the current tab and bring it to the foreground (select/highlight).
1. Fixed an issue where the extension does not interact properly with Google+ images. 2. Fixed a minor UI issue where the camera icon sometimes still appears on the corner of an image even after the mouse cursor has already moved off of the image.