I have been having no luck using the book reader on archive.org for at least the last week. The reader is present, but there are no pages and no book in the reader. The problem seems to be confined to my Firefox browser. Chrome and Safari work as expected.
archive.org suggested I turn off my adblocker. so I whitelisted archive.org but it still doesn't work. I haven't intentionally changed any settings recently.
Are there other Firefox users having this problem or is it something on my computer alone.
Thank you Everyone, for your help. It was my adblocker. When I added archive.org to the exceptions list I added it as www.archive.org and that didn't work. I had to add it as https.archive.org.