User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.4; en-US; rv:1.9.0.1) Gecko/2008070206 Firefox/3.0.1 Build Identifier: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.4; en-US; rv:1.9.0.1) Gecko/2008070206 Firefox/3.0.1 A CD that comes along with TOPOL Textbook of Cardiovascular medicine has html version of the book that depends on allowing pop-ups. The url described above is the initial interface. When you click e-book, you get the message "Firefox prevented this site from opening a pop-up window." The preferences button shows as its first option: "Allow pop-ups for". When you manually try to add something like: Volumes or Volumes/TOPOL or TOPOL it still doesn't allow it. Reproducible: Always Steps to Reproduce: 1.Start any html file on your own computer that starts a pop-up. 2.Try to allow it. Actual Results: You can't open the pop-up. Expected Results: Being able to allow the pop-up.

Please search before you file a bug, this one is very easy to find