How do i turn off vendor prefixes for this plugin?

[sjoerdvermeijden]

I use Emmet for which i have turned off adding vendor prefixes via "css.autoInsertVendorPrefixes": false. But when i install this plugin and use tab completion (for example df for display flex), it adds vendor prefixes for all browsers. What it also does when i type df + tab (in my scss files) it completes to dfn, which is a html tag. I like your plugin but it slows me down a lot by adding all these vendor prefixes