I posted this information on your idea as well, but I will address it here so others can see it.
Web safe fonts are those fonts that are listed in the drop down for text selection.
You'll notice at the bottom of that list is a menu of System Fonts. The fonts listed there will be exported as an image. All of the fonts you see listed above, however, will be exported in plain text as long as it has not been rotated.
Hi, do you install these fonts on your machine so that Muse recognizes them for use in the layout or are you using custom html?
Or something else? Please enlighten... Thanks.