Build Identifier: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b8pre) Gecko/20101124 Firefox/4.0b8pre Can not return browser and can not close the browser, when it passes for back 15 seconds when I closed tab group in Panorama. workaround: * create group and create new tab * undo closed tab, Do not use Ctrl + T due to Bug 614545. Reproducible: Always Steps to Reproduce: 1. Start Minefield with new profile 2. Enter Panorama (Ctrl + E) 4. Close all groups, and close all standalone tabs(if any) 5. Wait 15 seconds 6. Try to retirn tab browser (Ctrl + E) 7. try to close the browser, Actual Results: * Can not return to tab browser * Can not close the browser Expected Results: * Should be able to return tab browser. * Should be able to close the browser. Regression window(cached hourly); Works(but browser closes automatically): http://hg.mozilla.org/mozilla-central/rev/7a62a113eeb0 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b8pre) Gecko/20101105 Firefox/4.0b8pre ID:20101105132006 Fails: http://hg.mozilla.org/mozilla-central/rev/c609be50b0b2 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b8pre) Gecko/20101105 Firefox/4.0b8pre ID:20101105170428 Pushlog: http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=6f059cc830cc&tochange=c609be50b0b2

Sorry, It is not necessary to wait for 15 seconds It seems that this behavior may be intentional by Bug 595521. However, I think that *It should close the browser when i click Close button at the top-right corner of window. *It should return to tab browser when I push ctrl + E (a new tab will be added).

We found that most users expected the be returned to Firefox when closing Panorama. It's useful to think of Panorama as a window on top of firefox.

The problem is that, in this case, you cannot close Panorama to get back to browsing in Firefox. You can't close Firefox as a whole, either. You are locked in the Panorama window until you either 'Undo Close Group' or create a new tab. In my opinion you should always be able to get out of Panorama. If there are no tab groups or orphan tabs left, clicking the close Panorama button should simply create a new tab and send you back to browsing. I ran into this problem yesterday and was surprised to see WONTFIX when I went searching for it today. I think there was a misunderstanding of what this bug was about. Hopefully someone is willing to look into this again?

Ah. If what you are looking for is either a way to exit Firefox while in Panorama, this is currently available on the Mac via cmd+q and we have a bug for it in Windows is bug 608330. If the bug is for changing the behavior so that it is possible to close the Panorama UI with the undo close group notification still up, I'd be interested. We have, however, made an explicit decision to make it difficult to close the browser from the Panorama UI.

Yes, making the "exit Panorama" command (cmd-E, ESC, the button, etc.) synonymous with "create new tab" when there is nothing left but a "undo close group" on the screen seems like a great suggestion. Assigning to Aza for design approval.

Thanks. This bug appears to be fixed via bug 608158.

Verified in recent nightly minefield build