I am using a Wordpress theme which includes various JS libraries, including jQuery and the Stellar.js plugin. In Firefox 49.0 the background images where the parallax effect is applied, appear with some kind of a wrong vertical offset and are generally buggy.
You can see the problem here: select-salmon.gr
The problem disappears when I:
- Resize the window (or)
- Remove the
transform: translate3d
CSS property in the styles inspector (and thus reset the parallax effect)
Any ideas?