User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.8) Gecko/20100722 Firefox/3.6.8 Build Identifier: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.8) Gecko/20100722 Firefox/3.6.8 When using two-finger-swipe on trackpad on macbook pro to scroll a page, if you touch the control button AFTER a swipe (like to switch tabs), the page then zooms in or out. Reproducible: Always Steps to Reproduce: 1. Scroll a web page with 2-finger swipe on macbook trackpad 2. (when page is still elastic scrolling) Switch tabs by pressing Control+TAB Actual Results: The pages then zoom in or out, and need to be reset with Command+0 Expected Results: Switch tabs without affecting page zoom This only started happening with the introduction of elastic page scrolling.

I can attest to this on the latest Firefox release, the latest Camino release, and the Camino nightly. Same steps to reproduce on both. Same actual and expected results. I see it all the time when switching spaces (ctrl+arrow/ctrl+number).