Yesterday I uploaded a bunch of pdfs on my wordpress website and they display the title, image captions, byline and other miscellaneous text, but NOT BODY text, incorrectly on Windows Firefox and ONLY on Windows Firefox. Mac works fine, Windows Chrome, Edge work fine but Windows Firefox displays the affected text as individual boxes with letters in them. This may be broader than the font settings on one computer as I have replicated the issue on several PCs. Interesting though that when I download the embedded pdf, and it's displayed in the page, the fonts ARE CORRECT!!! You can see the issue here: https://davegibsonimages.com/air-force-vs-navy/ or you can look at the screenshot I took. I've contacted the developer of the embedder plugin and they are seeing a 404 error for the affected pages, which is NOT replicated elsewhere, but since it returns a 200, they're convinced that it's not a problem with their plugin. Godaddy is of course saying all is well on their end. I've cleared all the available caches, to no avail, and of course refreshed pages.