I tried some more fast alt-tabbing under Quantal; never lost focus. (I do lose window focus in different ways that I'm still trying understand and match to bug reports, so it's possible this has happened to me at some point, but I don't think so.)
By the way, Omer, thank you for finding the right master for bug 1037834. I knew I had seen it, but I was searching for 'alt-tab', and couldn't see this 'alt+tab'. Now I see that just 'alt tab' will match both; I hadn't trusted that enough.
I tried some more fast alt-tabbing under Quantal; never lost focus. (I do lose window focus in different ways that I'm still trying understand and match to bug reports, so it's possible this has happened to me at some point, but I don't think so.)
By the way, Omer, thank you for finding the right master for bug 1037834. I knew I had seen it, but I was searching for 'alt-tab', and couldn't see this 'alt+tab'. Now I see that just 'alt tab' will match both; I hadn't trusted that enough.
Thanks.