User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040614 Firefox/0.9 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040614 Firefox/0.9 If I select a PDF link to open, Firefox will ask what application to use to open the PDF. If I then select Firefox as the appropriate application, Firefox attempts to recursively open windows (one opens the next, which opens the next, which opens the next, etc) until I kill the application through the process manager. Reproducible: Always Steps to Reproduce: 1. Select PDF link to open 2. Select Firefox as the application to open PDF 3. Actual Results: Unlimited windows were opened. Expected Results: Firefox should disallow itself as a valid choice for unknown file types.
*** This bug has been marked as a duplicate of 218257 ***