User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:2.0b6) Gecko/20100101 Firefox/4.0b6 Build Identifier: Mozilla/5.0 (Windows NT 5.1; rv:2.0b6) Gecko/20100101 Firefox/4.0b6 FF4 can't seem to load certain https gif images. The following 2 examples load perfectly fine with IE/Chrome, but when using FF4, "File not found" shows up in FF4. Tried disabling all plug-ins and extensions, and using FF Safe Mode, and the same error appears. https://res.aircanada.com/oci/images/en/btn_continue.gif https://res.aircanada.com/oci/images/en/btn_previous.gif https://res.aircanada.com/oci/images/en/btn_quit.gif https://res.aircanada.com/oci/images/en/seat_exitRight.gif https://res.aircanada.com/oci/images/en/seat_label_1.gif "File not found Firefox can't find the file at https://res.aircanada.com/oci/images/en/btn_continue.gif." Reproducible: Always Steps to Reproduce: 1. https://res.aircanada.com/oci/images/en/btn_continue.gif 2. Try in IE/Chrome and image loads perfectly fine Actual Results: File not found Firefox can't find the file at https://res.aircanada.com/oci/images/en/btn_continue.gif. Expected Results: Image should load!