511630 - Going back and forth between Firefox that has multiple tabs open and another window causes a tab to disappear and reopen in a new screen

Status: RESOLVED DUPLICATE of bug 489729

(Firefox :: Tabbed Browser, defect)

Description

[Dawn]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; nl; rv:1.9.1.2) Gecko/20090729 Firefox/3.5.2 (.NET CLR 3.5.30729)
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; nl; rv:1.9.1.2) Gecko/20090729 Firefox/3.5.2 (.NET CLR 3.5.30729)

I was going back and forth between Firefox that has multiple tabs open and another window, and it caused a tab to disappear and reopen in a new screen. The problem is that the newly opened screen displayed nothing but a white page, thus I lost the page.

Reproducible: Always

Steps to Reproduce:
1. Just have multiple tabs open in 1 Firefox browser
2. Switch to another screen, for example a game, or mIRC (in my case)
3. Switch back to Firefox

Actual Results:  
caused a tab to disappear and reopen in a new screen. The problem is that the newly opened screen displayed nothing but a white page, thus I lost the page.

Expected Results:  
It should just switch back to the browser with all the tabs still there....

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Comment 1

[Jo Hermans]

If you switched back to Firefox using the mouse (not alt tab), then it's bug 489729.