User Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:33.0) Gecko/20100101 Firefox/33.0 Build ID: 20141027150301 Steps to reproduce: Check 'Warn me when closing multiple tabs'. Open a Private Window. Open multiple tabs. Close window (with X or Alt+F4). Actual results: Window closes immediately. Expected results: 'You are about to close [#] tabs. Are you sure you want to continue?' warning should be displayed. Notes: - This is a data loss issue, because the contents of the Private Window cannot be restored and the window could easily be closed by accident. - This is not a new issue; it dates back to at least 27.0.1.
There is one scenario I've found where the dialog *does* display: There's only one window open and it's Private. Additionally, browser.showQuitWarning is set to false (default setting).
This is intentional. See bug 987821 comment 2: we want closing private windows to be as quick as possible.
Status: UNCONFIRMED → RESOLVED
Last Resolved: 4 years ago
Resolution: --- → DUPLICATE
Duplicate of bug: 987821
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