autoplaying videos arw eating all my mobile phone data.

As the title said it. My data consumption from Jerboa went front less than 1GB a month to 2 in December and 5 in January. The only thing I can think that changed here were the videos now being in auto-play.

There's any way to stop it?

Thanks.

Edit: I just found that there's a option to disable auto-play. Didn't saw it before because I was looking up for true for autoplay instead of a false.