Agree with others, this is an improvement on the original. It even allows to pop up and download twitter vids without needing to use 3rd party tools.

Only review I've written on FireFox - this addon is 100 times better than any image/video hover addon out there. Everything just works without the constant need to tinker

Works wonderfully! Thanks for the recent update that adds config import/export option. Keep up the good work!
For those who couldn't get it to work, I'd say take a look at the subreddit, there are some comprehensive guides for troubleshooting and setting it up.

This newer version of Imagus doesn't work at all for me on the Firefox folk I installed it on unfortunately. No image preview was every shown over the images I hover my mouse/cursor on. It's so bad that even the several years-old Imagus extension still does the intended job that this new version was supposed to do.

EDIT: I gave this another try and now the extension is properly working as intended after seeing a new notice from the "options" setting where it reveals that the problem was with the user script not being enabled on default.

there is room for improvement, but 5/5 solely for picking up the project.

Works better than the original. Plays videos that the original didn't for example.

Excellent, thanks!