Ubuntu and Prestashop, final price tax issue

[switchtoled]

I find that when I view my website on Ubuntu Linux the cost of items is 10% less.

While I love Linux, I do not intend to give each and every Linux user such a discount

 

Prestashop displays $18.18 for an item on Ubuntu Linux while it should be $20 (displayed on Windows)

Both Ubuntu and Windows7 invoice Goods and Services Tax (VAT in other countries) but the final price for Ubuntu users is the same as the Tax Free price for Windows7 Users

 

I am certain this is a bug inside Prestashop, as no matter how I view this, I cant imagine it would be a CMS or Catalog issue.

 

Please, everyone, find a way to pursuade Prestashop to amend this bug and check your own sites on someones Ubuntu / Firefox software.

[switchtoled]

I have noticed, a few days after posting this comment, that the Ubuntu Glitch vanished. I wish I knew who mended the glitch in Prestashop because I really want to say;

 

Thank you