338217 - hang and heavy cpu usage until applet closure

Status: RESOLVED INVALID

(Firefox :: General, defect)

Description

[Luca Cittadini]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; it-IT; rv:1.8.0.3) Gecko/20060426 Firefox/1.5.0.3
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; it-IT; rv:1.8.0.3) Gecko/20060426 Firefox/1.5.0.3

Firefox stops responding to user input and goes for huge cpu usage while using the applet at http://bgplay.routeviews.org/bgplay/ (Start BGPlay). 
The browser becomes unusable (no response at all) as soon as the applet gets loaded, and steals big cpu percentages. 
Closing the applet restores normal behavior.

Reproducible: Always

Steps to Reproduce:
1. go to http://bgplay.routeviews.org/bgplay/
2. start the applet ("Start BGPlay" button)
3. close the applet 

Actual Results:  
Firefox hangs after step 2. CPU usage peaks and no user input seems to be processed by the application as long as the applet is running.
Performing step 3 apparently restores normal behavior of the browser.

Expected Results:  
Browser is supposed to be usable while the applet runs in background.

Environment-related info:
CPU - Intel Pentium 4 HT
OS - Linux Fedora Core 4 i386, kernel 2.6.14

Firefox-related info:
version - 1.5.0.3 (latest at the time of writing)
Theme - Noia eXtreme 2.996
Relevant Extensions - Adblock Plus 0.6.1.1

Comment 1

[Luca Cittadini]

It definitely seems to be bound to the Adblock Plus extension.
I've just tested it against a new empty firefox profile, and the hang doesn't happen. 
Installing the extension fires up the bug. 
I will report that to the extension developers.