216872 - Display a confirmation dialog when closing a window with multiple open tabs

Status: RESOLVED DUPLICATE of bug 189888

(Firefox :: General, enhancement)

Description

[Jon Henry]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.5b) Gecko/20030821 Mozilla Firebird/0.6.1+
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.5b) Gecko/20030821 Mozilla Firebird/0.6.1+

During the 1.4 cycle, a feature landed in SeaMonkey that displayed a
confirmation dialog when attempting to close a browser window with multiple open
tabs. This would be a useful enhancement to port to Firebird, as it is a common
and frustrating mistake for users new to tabbed browsing. Should be toggle-able
via a checkbox in the confirmation dialog, and perhaps an option to turn it back
on in Advanced pane.

Reproducible: Always

Steps to Reproduce:
1. Open several tabs.
2. Close Firebird via any method.

Actual Results:  
All tabs are closed, whether or not this was the intention.

Expected Results:  
The first time this occurrs, a warning should appear asking whether the user
meant to close all tabs, or just the current one, with the ability to disable
the warning. See bug 108973 for reference.

Comment 1

[Pham]

*** This bug has been marked as a duplicate of 189888 ***