Rated 5 out of 5 stars

One of the most useful plugins EVER!!!

Yes, indeed it is buggy since it is no longer being updated. However, I managed to get around it somehow by clicking on the icon on the AddonBar & select Options. Close the Options window & everything seemed to work normally again. Don't really know the logic behind it. The Back/Forward button to browse through the images would not work afterwards, though. But of course you can always use the menu on the icons.