User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.3) Gecko/2008092417 Firefox/3.0.3 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.3) Gecko/2008092417 Firefox/3.0.3 After opening FF with a saved session, or after a crash, where proxy authentication is needed, each element requesting proxy access will create a proxy authentication dialogue. I not restricted to newer versions - All previous versions of FF appear to exhibit this behavior. Reproducible: Always Steps to Reproduce: 1. Enable a proxy requiring authentication. 2. Save a session with multiple tabs. 3. Reload FF. Actual Results: A Proxy Authentication dialogue is produced for every instance of a proxy access. Expected Results: A single Proxy Authentication dialogue should be produced. Further dialogues should not be produced until the first has been dismissed.

Additionally; As these dialogues are modal, for multiple access requests, instances where a second dialogue covers another, yet the first must be dismissed before the second (which is covering in the foreground) can be.