576932 - Modal dialog boxes originated from web page should only suspend the tab, not entire browser.

Status: RESOLVED DUPLICATE of bug 59314

(Firefox :: General, defect)

Description

[V@no]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.6) Gecko/20100625 Firefox/3.6.6 ImageShackToolbar/5.2.4 ( .NET CLR 3.5.30729; .NET4.0C)
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.6) Gecko/20100625 Firefox/3.6.6 ImageShackToolbar/5.2.4 ( .NET CLR 3.5.30729; .NET4.0C)

At the current state any modal dialog boxes (alert or http authentication prompt) will suspend entire browser from functioning until the modal box is closed.
Instead of this behavior Firefox should only suspend the tab the modal box was originated from, but let the user continue working in other tabs.

Reproducible: Always

Steps to Reproduce:
1. open a few tabs
2. type in any of the tabs in the address bar: javascript:alert("ok");
3. while alert box is opened, try switch to a different tab.
Actual Results:  
Alert box blinks, expecting your attention, entire firefox is suspended from user interactions

Expected Results:  
Firefox continue operate as nothing happened, only the tab from which alert box was opened should be suspended from user's interaction, until alert box is closed.

As I picture it, modal windows should only stay on top of the it's parent window/tab, which means switching tabs would also remove the modal window from display, but switching back to the tab where modal window originated from, would bring back the modal window.