713254 - scripts hang when multiple cursor/page down keys are queued

Status: RESOLVED WORKSFORME

(Firefox :: General, defect)

Description

[douglas godfrey]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:9.0) Gecko/20100101 Firefox/9.0
Build ID: 20111212185108

Steps to reproduce:

Scripts cause significant slowdown in processing cursor/page down keys
[2-5 seconds delay before the first key is handled, 1+ second for the next keys].
If too many [10+] cursor/page down keys are queued the scripts hang Firefox.
After 30-60 seconds with no cursor/page down key the initial delay is in effect again.

1) Go to http://www.huffingtonpost.com
2) select the top 20 links and "Open in a New Window"
    [10 windows with a flash video]
3) select any window and press Page Down or Cursor Down
    [nothing happens for several seconds]
4) select another window and press and hold Cursor Down 
    or rapidly press key 20 times
    [Firefox hangs with Beach-ball cursor]

Open Browser windows:
1) Netflix Queue       http://movies.netflix.com/Queue?qtype=ED
2) Lycos webmail      https://webmail.lycos.com/mail?user=xxxxxx&pass=xxxxxx
3) MotherJones.com  http://motherjones.com/mojo/2011/12/daily-show-jon-stewart-indefinite-detention
4) Huffington Post     http://www.huffingtonpost.com/politics/
5-25)Huffington Post  top 20 article links


Actual results:

Firefox Hangs


Expected results:

Any script that delays processing of Cursor/Page Down keys by more than 5 seconds should be terminated and an alert should be displayed. If scripts from the same site are terminated 3 times then all scripts from that site should be disabled.

Comment 1

[douglas godfrey]

Installed Add-ons:
1) Adblock Plus 2.0.1
2) Adblock Plus Pop-up addon 0.2.9
3) Better Privacy 1.6.7
4) https-Everywhere 2.0development4
5) MAFIAAFire 0.1.2.19.25102011
6) NoScript 2.2.4
7) Disabled: DivX Web Player 2.1.2.145
9) Disabled: FEBE 7.0.2

Installed Plug-ins:
1)  DivX Plus Web Player 2.2
2)  DivX VOD Helper Plug-in 1.0
3)  Flip4Mac Windows Media Plugin 2.3.8.1
4)  Google Earth Plug-in 6.1
5)  iPhotoPhotocast 7.0
6)  Java Plug-in 2 for NPAPI Browsers 13.6.0
7)  QuickTime Plug-in 7.6.6
8)  RealPlayer Plugin.plugin 0.0.1d1
9)  SharePoint Browser Plug-in 14.1.0
10) Shockwave Flash 11.0.1.152
11) Silverlight Plug-in 4.0.60831.0

Comment 2

[Wayne Mery (:wsmwk)]

Does this happen in safe mode using a new profile or in safe mode?

Comment 3

[douglas godfrey]

This bug has not reoccurred with recent versions of Firefox.

Comment 4

[Wayne Mery (:wsmwk)]

Douglas, thanks for the update.  As bug author please change each bug report as follows when behavior has changed for you...

At the bottom of the bug report page
- if you still see the problem, change STATUS to "reopened"
- if you don't see the problem, change STATUS to RESOLVED and RESOLUTION to WORKSFORME
then click Save Changes