User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.1.1) Gecko/20061204 Firefox/2.0.0.1 Build Identifier: Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.1.1) Gecko/20061204 Firefox/2.0.0.1 I started FF and have 2 windows open, one in the primary monitor, one in the secondary monitor. If I do an operation which creates an auto-complete drop-down (the search box or even filling out this form), the auto-complete drop-down widget shows up on the primary monitor. It's at the correct pixel-location, but just the wrong screen... Reproducible: Always Steps to Reproduce: 1. Start FF 2. Open second window & move to second monitor 3. Type in "postgre" in the google-search box Actual Results: Drop-down box appears on primary screen Expected Results: Drop-down box should appear on secondary screen at the correct location.