981253 - Firefox has to be manually killed using task manager

Status: RESOLVED DUPLICATE of bug 401301

(Firefox :: General, defect)

Description

[Tanveer Singh]

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:27.0) Gecko/20100101 Firefox/27.0 (Beta/Release)
Build ID: 20140212131424

Steps to reproduce:

Open facebook or youtube
After some time, click the cross, and firefox main window closes.

After some time press firefox icon, and it says
"Firefox is running, please restart or close process...."

OS : Win7 64bit
Firefox 27.0.1


Actual results:

After I updated to 27.0.1(auto update), sometimes, firefox on Windows 7 64bit(firefox itself is 32 bit) does not close.
So when I start next time, it says "firefox is already running...."

So I have to go to task manager.
The problem started after 27.0.1 update. I did not install any new extensions. It happens mostly if I close firefox with facebook or youtube window open. For other static content stuff this does not happen


Expected results:

On clicking the cross, firefox should have shutdown with no zombie process