Add to cart not working in FF

[Denniz0229]

the problem is pretty straight forward as described in the title:
add to cart is nog working in firefox, you can click the button, the pop-up will also appear telling you that you added the product, but it doesn't actually show up in the cart.

my website is running VM 2.0.18a and joomla 2.5.8 (website: www.novosmoke.nl)

everything worked perfect, until i made some adjustments to some products, by simply adding child products and making card variants for them.
after that i can't add anything to the cart, and also i am getting this error.

Warning: Invalid argument supplied for foreach() in /public/sites/www.novosmoke.nl/plugins/vmcustom/stockable/stockable.php on line 229

pretty weird that it happened after adding some products. also, the problem only appears in firefox.
and since alot of my customers do use firefox its a pretty nasty problem.

any help would be greatly appreciated.

[jenkinhill]

Works OK for me - Firefox 18.0.1

[wendy1]

I am having this same issue on my site. If I refresh the page the products show up in the cart. Help please.

[jenkinhill]

If I refresh the page the products show up in the cart.

That is not the same issue as described by Denniz0229.

What you describe suggests that you have a JavaScript issue. Suggest you debug the js with Firebug. https://getfirebug.com/errors