527465 - Memory issue- Found script running excessive loads

Status: RESOLVED INCOMPLETE

(Firefox :: Extension Compatibility, defect)

Description

[Wayne Moran]

User-Agent:       Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; InfoPath.2; MS-RTC LM 8; OfficeLiveConnector.1.3; OfficeLivePatch.0.0; .NET CLR 3.5.30729; .NET CLR 3.0.30729)
Build Identifier: 3.5.4

When visiting PWInsider.com, using No Script (latest version), I found that enabling pwinsider.com's script causes Firefox memory usage to balloon to over 1GB within 5 minutes. Ran seperate test with No Script uninstalled and had same result. Not using any other add-ons. Have been seeing this on several other sites lately (high or extreme memory usage), but this is the first time I've been able to resolve it by blocking the site's script. Disabling pwinsider.com instantly put my memory usage back to normal and Firefox was again usable. 

Reproducible: Always

Steps to Reproduce:
1. Visit PWinsider.com, something on that page is causing memory issues that are not present in IE or Chrome.
2. Using No Script, allow pwinsider.com, watch memory usage skyrocket.
3. Turn off pwinsider.com in No Script, watch rocket land.
Actual Results:  
Firefox returned to normal memory usage and all were happy and glad.

Expected Results:  
Not sure hwo to answer this.....

Comment 1

[Wayne Mery (:wsmwk)]

Wayne, do you still see this with firefox 4.0 beta https://wiki.mozilla.org/Firefox/4/Beta or other recent version of firefox?  

your comment makes it sound like it's a website issue and an addon isn't involved, so why did you choose to file this in extensions?

Comment 2

[Tyler Downer [He/Him]]

No reply, INCOMPLETE. Please retest with Firefox 3.6.13 or later and a new profile (http://support.mozilla.com/kb/Managing+profiles). If you continue to see this issue with the newest firefox and a new profile, then please comment on this bug.