10FT8R schematic and Firefox

When browsing my 10FT8R webpage, I have embedded the schematic from Google Drive. It is a much clearer PDF document that opens without issues in Chrome. However, it has been brought to my attention by Steve G1KQH that this does not work in Firefox. I tried it myself getting this message:

"Blocked by X-Frame-Options Policy

This page has an X-Frame-Options policy that prevents it from being loaded in this context.

The browser prevented this page from loading in this context because the page has an X-Frame-Options policy that disallows it."

I do not know how to avoid this. If anyone needs the clearer schematic  please let me know so I may send you one. 

This is a pity as Firefox is a popular browser. I have put the old schematic on as well.

If anyone knows how to overcome this issue in Firefox, please let us know. There may be a way to tell Firefox of exceptions?

UPDATE 0916z: Apparently there is a Firefox extension that may solve the problem. I have not tried it. See https://addons.mozilla.org/en-GB/firefox/addon/ignore-x-frame-options-header/ .

Firefox crippled?

Maybe it is just me and my Win 8.1 PC, but today I am having great problems with my Firefox web browser, which in the past has been both reliable and stable. The program seems to freeze on several bookmarks (notably Facebook) and I have to restart the PC to recover. I just wonder if a recent Windows Update (installed earlier) has upset it?

Anyone else suffering in the last day or so with Firefox?

I hope Microsoft is not trying to act dirty. Not saying they are - but it seems odd that all my problems have just started today. If I were to make a browser change it would be to Google Chrome.
 
UPDATE 12.3.15 1410z:   I deleted the Facebook bookmark and replaced it.  All seems well with Firefox.