We have several company websites that use Wordpress along with a Genesis installation, a custom Genesis child theme, and bxslider for image sliders.
When we view the slider on Firefox, we notice a responsiveness issue that we believe is caused by the new srcset responsive image classes in Wordpress 4.4.
For example, when loading a site like , only about 50 pixels of the slider image are visible initially. However, resizing the browser fixes the issue and restores the slider's normal responsive qualities and height. Additionally, if you inspect the element, the size corrects itself.
We have tested sites that have not been updated to version 4.4 and the issue does not occur, leading us to believe it is a bug related to the new installation.
We are unsure of how to resolve this issue and would appreciate any help.