490971 - JavaScript endless loop kills browsing

Status: RESOLVED DUPLICATE of bug 61098

(Firefox :: General, defect)

Description

[count negative]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.0; de; rv:1.9.1b4) Gecko/20090423 Firefox/3.5b4 (.NET CLR 3.5.30729)
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.0; de; rv:1.9.1b4) Gecko/20090423 Firefox/3.5b4 (.NET CLR 3.5.30729)

for (;;) {
	alert("");
}

I've seen it on some pages, but only Taskmanager can help out. So I can't report that pages. But I think you should provide a way, to break loops in JavaScripts

Reproducible: Always

Steps to Reproduce:
1. open new html file
2. put for (;;) {
	alert("");
} in
3. browse it and try to escape
Actual Results:  
nice button, you can click some time.

Expected Results:  
maybe a second button in that modal window with a "break" function.

Comment 1

[:Gavin Sharp [email: [e-mail]]]

This is a longstanding and well-known problem, see bug 61098.