Kai Sellgren Reporter
	Description • 13 years ago

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.1 (KHTML, like Gecko) Chrome/13.0.782.220 Safari/535.1

Steps to reproduce:

I ran this script:

while (true) {window.open('http://google.fi');}


Actual results:

Firefox crashed.


Expected results:

Firefox should pop up "Do you want to terminate the script?" and actually terminate it.

	Kai Sellgren Reporter
	Comment 1 • 13 years ago

I noticed an interesting thing. Firefox has this ad-block support. The right side handle allows you to enable specific pop-ups that were about to open. This list keeps getting bigger and bigger with each window.open() call so maybe the issue lies with that (the drop down getting enormous)?

	Vincent Lefevre
	Comment 5 • 9 years ago

The Platform field says "Windows 7", but the problem occurs under Linux too. Actually, with Fvwm + manual window placement, this is worse, as this completely blocks the whole desktop UI.

	blkph0x
	Comment 9 • 9 years ago

An update I got yestaday has rendered another instance of this bug useless what would happen is if the window.open(string) is small it will just hang and you have to close it with taskman but if you increase the length of the string to let's say 10000 now open it and Firefox will hang then close with oom crash long and if you check it out in a debugger an addres of unk_xxxxxx gets over written with a section of the string you place in the ver and as of the update yestaday this no longer happens but the crash is happning in xul.dll unable to write 0x0 to invalid address 0x0000000

	Christoph Kerschbaumer [:ckerschb]
	Comment 13 • 7 years ago

Triaging bugs at the moment and this one seems like an exact duplicate of Bug 676975. It also relies on the window.open() annoy mechanism.

	Christoph Kerschbaumer [:ckerschb]
	Comment 14 • 7 years ago

Sorry, this is the right duplicate.

	Johann Hofmann [:johannh] Assignee
	Comment 16 • 6 years ago

As mentioned in bug 1444752, I don't think this is a dupe. Bug 675574 is about opening infinite popups when being allowed to open (such as in event handling context), while this one is about the crash/hang/slowness (with e10s on) that results in blocking a large number of popups.

I'd say bug 675574 is much worse, but this one seems easy to solve or at least easy to experiment with a solution for. My theory is that this gets fixed by throttling sending or receiving the DOMPopupBlocked event.

	Pulsebot
	Comment 18 • 6 years ago

Pushed by jhofmann@mozilla.com:
https://hg.mozilla.org/integration/autoland/rev/74807b4c104a
Limit displaying blocked popups in the front-end. r=Gijs

	Arthur Iakab [arthur_iakab]
	Comment 19 • 6 years ago
bugherder

https://hg.mozilla.org/mozilla-central/rev/74807b4c104a