What could cause a page opened on Firefox to have an enormous data usage?
Do you know what embedded miners are?

https://platform.jsecoin.com/?register=1&amp;utm_source=referral&amp;utm_campaign=aff139531&amp;utm_content

http://join-shortest.com/ref/bdb9481b4c?user-type=new

They are a way for a webmaster to make money off of their webpage without a bunch if banners. The visitors of the website are having some if their computer power used to mine cryptocurrency. That uses data, right?