754991 - Cannot close Facebook tab and cannot close Firefox

Status: RESOLVED WORKSFORME

(Firefox :: General, defect)

Description

[werty20]

Attachment: process monitor logfile when i try to close firefox

User Agent: Mozilla/5.0 (Windows NT 5.1; rv:12.0) Gecko/20100101 Firefox/12.0
Build ID: 20120420145725

Steps to reproduce:

open facebook in 2 or more tab .. the more tab for facebook the more i cant close firefox or tab



Actual results:

cant close facebook tab , cant close firefox
https://support.mozilla.org/en-US/questions/926877

http://youtu.be/lWhdxfuIkow

and i see some have the same problem
also creat new profile , reinstall firefox , install beta didnt help



Expected results:

that happened after i upgrade firefox to ver 12 ..

Comment 1

[werty20]

the attached file started when i click close 
it take about 20 sc o be closed

Comment 2

[werty20]

i see this post 

= http://superuser.com/questions/421638/firefox-hanging-issue-on-facebook

Same here, Firefox 12 under Windows and when trying to close the Facebook tab, it hangs for quite some time, unless I close and reopen Firefox entirely.

My suspicion is not on any Firefox extensions, but on an unfortunate combination of ban effects:

   For one, my internet connection is slow. Sometimes requests take ages to either start or time out.

   Secondly I suspect Facebook using an AJAX request in the OnUnload event, which basically delays the page close until the script decided whether closing is allowed or not.

The problem is, web designers these days can no longer imagine that people will notice these requests because they take so long on their connection.

=

so i install noscript , forbid firefox , it work perfect finally
 so any help ?
thx

Comment 3

[werty20]

fixed after ver 13 update