Image problem in Firefox

Hello,

First of all, thank you for this theme, it’s really great.

I’ve noticed that there is a problem with displaying images on single page product when there is product gallery. When there is only one product image, it is shown correctly, but when there is product gallery on the page, the image is cut from the right side.

https://ibb.co/NSFj00b

You can see this issue even on the theme demo page:
https://themehunk.com/wp-themes/topstore/product/cras-viverra-rhoncus/