1331451 - Crash in nsAutoJSString::init

Status: RESOLVED WORKSFORME

(Core :: General, defect)

Description

[fireattack [:fireattack]]

This bug was filed from the Socorro interface and is 
report bp-a2d3928e-3d73-40d5-9b12-b85292170116.
=============================================================

Comment 1

[fireattack [:fireattack]]

My firefox keeps crash within 1 min I start it.

bp-0decc61c-ba62-467f-a5e3-ae49f2170116
	1/16/2017	1:15 PM
bp-94072037-f7c8-473e-8fe6-e98502170116
	1/16/2017	1:14 PM
bp-d0052451-435b-4baa-8b74-022bb2170116
	1/16/2017	1:13 PM
bp-155f832c-0cdf-4c78-bf20-586492170116
	1/16/2017	1:12 PM
bp-f7c45981-3506-48a6-aabe-0d4ac2170116
	1/16/2017	1:11 PM
bp-a2d3928e-3d73-40d5-9b12-b85292170116
	1/16/2017	1:10 PM

Comment 3

[fireattack [:fireattack]]

Crashes even in safe mode.

https://crash-stats.mozilla.com/report/index/25077c43-71dc-49ce-b165-15d6b2170116

Comment 4

[fireattack [:fireattack]]

Full list of crash so far:

Not always "nsAutoJSString::init", sometimes it's "CPOWProxyHandler::ownPropertyKeys"

Report ID 	Date Submitted
bp-e12ebd2c-3dd1-4f41-abb2-607d02170116
	1/16/2017	1:23 PM
bp-25077c43-71dc-49ce-b165-15d6b2170116
	1/16/2017	1:22 PM
bp-79e95e8b-22ec-411f-9fa6-050c02170116
	1/16/2017	1:17 PM
bp-0decc61c-ba62-467f-a5e3-ae49f2170116
	1/16/2017	1:15 PM
bp-94072037-f7c8-473e-8fe6-e98502170116
	1/16/2017	1:14 PM
bp-d0052451-435b-4baa-8b74-022bb2170116
	1/16/2017	1:13 PM
bp-155f832c-0cdf-4c78-bf20-586492170116
	1/16/2017	1:12 PM
bp-f7c45981-3506-48a6-aabe-0d4ac2170116
	1/16/2017	1:11 PM
bp-a2d3928e-3d73-40d5-9b12-b85292170116
	1/16/2017	1:10 PM

Comment 5

[fireattack [:fireattack]]

OK, I created a new profile.. now it's worse, it crashes immediately after I start Firefox.. I can't even get the report ID because of that.

Comment 6

[fireattack [:fireattack]]

One of the crash report for new profile:

https://crash-stats.mozilla.com/report/index/19f5dbf6-c12a-4467-bf5e-5a9db2170116

Comment 7

[Cosmin Muntean [:cmuntean], Ecosystem QA]

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:51.0) Gecko/20100101 Firefox/51.0
Firefox: 51.0, Build ID: 20170116133120

From crash reports I have observed that Beta (51.0b14) is affected and I have try to test the issue on this version, but I haven't managed to reproduce it. I have tested on Windows 7 x64 and also on Windows 7 x32.
I have used the browser ~2h but didn't crashed.

Do you navigate on specific websites when the crash occurs? 
Also, can you please test this using the Firefox (51.0) release candidate in order to see if the issue is still reproducible and report back the results?
You can download it from here: http://archive.mozilla.org/pub/firefox/candidates/51.0-candidates/build2/win32/en-US/firefox-51.0.zip

Comment 8

[fireattack [:fireattack]]

I cannot reproduce this bug anymore, with RC or release version of 51.

When it was bugged, I don't need to access to any specific website, though.

I will wait and see, if it doesn't happen anymore I will close this one later.

Thanks for helping!

Comment 9

[Firefox Bug Husbandry Bot]

Moving from Core::Untriaged to Core::General https://bugzilla.mozilla.org/show_bug.cgi?id=1407598