I installed the "Color Inspector 3D" add-on to Firefox after reading Dave's recommendation in this post. However, it inserted itself in the right click context menu where I had the "Histogram Viewer" add-on. It seems that I can have one or the other but not both at once. I also have the "Exif Viewer" add-on which was not affected by the new add-on. Does anyone have a suggestion to correct this situation?
André