Agree with Ankit's message.

All options from developer's ansver are selected, but problem remains. By the way, hidden (by default) images randomly unhides after the tab is reloaded.

Seems to work okay, however the big issue seems to be that it still loads the images. It would be amazing if it could (optionally) disable image-loading completely, as a few other add-ons do - in order to save bandwidth on slower internet connections. But if it could still retain the mouse-over feature to display selected images. Or better still a right-click option to "display image" in-situ, on the actual page, rather than opening a separate tab/windows to show images, as other extensions do.