I removed this (what used to be an) extremely useful addon and replaced it with another. This because something happened very recently that made this addon incompatible with Firefox -- introducing a new bug into the system.

Browser Image viewing is now broken for the last few days. This addon creates a conflict with Firefox's image scaling feature when looking at pictures (when the image's URL is directly loaded and displayed). Now when you do that and then simply click on the image in order to zoom on it -- that function no longer works (as long as this addon Zoom Page WE is enabled). The image is not properly enlarged and clicking on the enlarged image can no longer result in moving the image to scroll up (in order to see the upper areas of the image). That is no longer possible. Only the middle and lower parts of the enlarged image come into view. The scrolling is fully defect and parts of the image are permanently hidden/scrolled up and out of the field of view of my Windows laptop.