Opened on 12/11/2016 at 11:01:47 PM

Closed on 12/12/2016 at 10:54:02 AM

#4727 closed defect (rejected)

Chrome 49 tabs crashing "Aw, Snap!" for some websites

Reported by: kzar Assignee: kzar
Priority: P2 Milestone:
Module: Platform Keywords:
Cc: sebastian, trev Blocked By:
Blocking: Platform: Chrome
Ready: yes Confidential: no
Tester: Unknown Verified working: no
Review URL(s):



Chrome Version 49.0.2623.75 (64-bit)
Adblock Plus aa21d219fd28
Debian chroot

How to reproduce

  1. Install Adblock Plus
  2. Browse to

Observed behaviour

Tab consistently crashes with the "Aw, Snap!" message.

Expected behaviour

Tab does not crash.


  • I've bisected the issue and it is apparently being caused by the Issue 4586 - Wrap contentWindow to prevent access to unwrapped APIs change.
  • I'm not sure if it's a problem with the specific copy of Chrome 49 / chroot setup I have.
  • I've yet to find any information in the developer tools which hints at what is going wrong.
  • Some websites will crash reliably, some won't ever crash. I'm guessing it's related to iframe / contentWindow API usage.

Attachments (0)

Change History (1)

comment:1 Changed on 12/12/2016 at 10:54:02 AM by kzar

  • Resolution set to rejected
  • Status changed from new to closed

(This was a regressions caused by a change for #4586. I have reverted that change and reoponed that issue.)

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