861162 - Firefox 20.0 hangs running certain scripts

Status: RESOLVED INCOMPLETE

(Firefox :: Untriaged, defect)

Description

[douglas godfrey]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:19.0) Gecko/20100101 Firefox/19.0
Build ID: 20130307023931

Steps to reproduce:

1) Install Firefox 20.0 Mac
2) Download a file from RapidGator.net
http://rapidgator.net/file/1f9dfdb9c1930198a03ebabaddcda73f/[OZC]Cowboy_Bebop_Blu-ray_Box_E23_Brain_Scratch_[720p]_-_ANIME-SHARING.COM.part1.rar.html
http://rapidgator.net/file/b9a4ef3cbbc89f450f7e2a2a39d9dd1a/[OZC]Cowboy_Bebop_Blu-ray_Box_E23_Brain_Scratch_[720p]_-_ANIME-SHARING.COM.part2.rar.html
http://rapidgator.net/file/ecf61960e4d9cc7b7c28fd79d6197bc5/[OZC]Cowboy_Bebop_Blu-ray_Box_E23_Brain_Scratch_[720p]_-_ANIME-SHARING.COM.part3.rar.html
http://rapidgator.net/file/f7fe14ed3c606ddb397787523623f0e3/[OZC]Cowboy_Bebop_Blu-ray_Box_E23_Brain_Scratch_[720p]_-_ANIME-SHARING.COM.part4.rar.html

The countdown timer scripts hang on Firefox 20.0 but work on Firefox 19 or earlier.

Reverting to Firefox 19.0 and the countdown timer works again


Actual results:

Firefox became non-responsive [Beachball Cursor] with CPU usage near 0%
Other Mac OS applications were not affected


Expected results:

The countdown timer script should have counted down for 30 seconds

Comment 1

[Loic]

WFM with FF20 on Win 7. Firefox doesn't hang and displays fine the remaining time to download in the download panel.

Did you try with a fresh profile?
https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles

In addition, what's the error message about script unresponsing?

Comment 2

[Liz Henry (:lizzard) (relman/hg->git project)]

WFM on FF20 on Mac 10.8.3.  The countdown displays, and the download also appears to work.

Comment 3

[Tiziana Sellitto [:tiziana]]

Douglas, can you still reproduce this?
Have you tried following the suggestions of comment 1?

Comment 4

[Wayne Mery (:wsmwk)]

> What's the error message about script unresponsing?

Douglas, we still need more info