1381943 - Crash in @0x0 | mozilla::mscom::Interceptor::ThreadSafeQueryInterface

Status: RESOLVED DUPLICATE of bug 1395329

(Core :: Disability Access APIs, defect)

Description

[(No longer employed by Mozilla) Aaron Klotz]

This bug was filed from the Socorro interface and is 
report bp-e1b4c98d-eb37-4fbc-b95a-6dc870170718.
=============================================================

Remaining crashes with this signature have a couple of interesting properties:

* 100% of them are on Windows 7 SP1
* There is a strong correlation with Webroot SecureAnywhere:
(72.65% in signature vs 00.60% overall) Module "WRusr.dll" = true

The number of unique installations that are affected are low on Nightly.

Comment 1

[(No longer employed by Mozilla) Aaron Klotz]

Carl, what's the status on wrusr.dll? Are we planning to block that?

Comment 2

[(No longer employed by Mozilla) Aaron Klotz]

Latest correlation:
(88.61% in signature vs 00.64% overall) Module "WRusr.dll" = true

Comment 3

[Carl Corcoran [:ccorcoran]]

We don't have a way yet of reliably blocking WRusr.dll (bug 1380335). Our other WRusr.dll-related bug 1361410 is likely to be resolved with a workaround until they fix the issue in their product.

So this would need to be investigated as another one-off for WRusr, unless we find a way to block.

Comment 4

[Chris Garcia]

I crash quite a few times per hour on the latest Beta and Nightly, doing the following is my current workaround:

accessibility.force_disabled = 1
accessibility.lastLoadDate (reset the value)
accessibility.loadedInLastSession (reset the value)

I don't really understand why my work PC was setting off the accessibility flags, I checked my Windows accessibility features and they're all off.  Must be something my work has running in the background.

Comment 5

[Jim Mathies [:jimm]]

Please post the accessibility section from your about:support page.

Comment 6

[Jim Mathies [:jimm]]

oop clients only, all UNKNOWN in-proc type. range of uptimes, oop clients. low volume.

https://crash-stats.mozilla.com/search/?signature=%3Dmozilla%3A%3Amscom%3A%3AInterceptor%3A%3AThreadSafeQueryInterface&product=Firefox&date=%3E%3D2017-08-06T16%3A38%3A00.000Z&date=%3C2017-09-03T16%3A38%3A00.000Z&_sort=-date&_facets=signature&_facets=accessibility_client&_facets=accessibility_in_proc_client&_facets=uptime&_columns=date&_columns=signature&_columns=product&_columns=version&_columns=build_id&_columns=platform#facet-accessibility_client

Comment 7

[(No longer employed by Mozilla) Aaron Klotz]

This is gone now. Duping to the fix.