401551 - Last active tab does not get focus back when PDF doc opened in a tab

Status: RESOLVED DUPLICATE of bug 315513

(Firefox :: Tabbed Browser, defect)

Description

[Nicki]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.8) Gecko/20071008 Firefox/2.0.0.8
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.8) Gecko/20071008 Firefox/2.0.0.8

The last active tab does not get the focus back after switching applications (using Alt-Tab or clicking the Taskbar icon) and switching back to Firefox. The tab is highlighted, but using the mouse scroller or shortcut keys like Ctrl-T for a new Tab does not work until after I click in the contents of the tab. It never used to be like this, this is a recent problem, possibly from around 2.0.0.6/7.

Reproducible: Always

Steps to Reproduce:
1.Have a few tabs open
2.Switch task to another application and back to FireFox
3.The selected tab no longer has the focus, you first have to click inside it
Actual Results:  
Cannot use the mouse scroller, cannot use shortcuts like Ctrl-T

Expected Results:  
The focus should've gone back to the selected tab

I did not install any new plugins, it just started happening one day.

Comment 1

[Nicki]

It turns out this happens only when you have a tab containing a PDF document open. After I closed the tab containing the PDF document, it all works as expected.

Comment 2

[Nicki]

I'm marking this as duplicate of 315513, they seem very much related