This simply doesn't work anymore. It does nothing, or at least I can't make it do anything regardless of the settings I put in. I will check back at some future date to see if it is fixed.

I have just added Hover Zoom+ to Firefox: it won't display a popup when hovering over images on the front page of ArtStation as well as in artists' galleries! When using Imagus on this site, enlarged images pop up right off!

The Addon has an Options-Page with many options to adjust it's behaviour. Unfortunately, all the settings are lost EACH time you clear the Firefox History.
Therefor, this addon is only usable when you are happy with it's default settings.

To make this addon better, please provide a fix that it keeps the settings despite clearing firefox history.