A particular PDF causes Acrobat to crash when I try to open it in any browser.

The PDF opens just fine if it is opened outside the browser, but when it opens within the browser, Acrobat crashes and gives various errors, depending on which system I'm using, from "Adobe Acrobat 6.0 has encountered a problem and needs to close. We are sorry for the inconvenience." to "Cannot find Adobe Acrobat." Something must be wrong with the PDF, but what is it?

insufficient data on issue.

Try uninstall Acrobat and use https://www.sumatrapdfreader.org/free-pdf-reader.html instead