1304996 - Crash when using network.protocol-handler.external.file=true

Status: RESOLVED DUPLICATE of bug 1300720

(Firefox :: Untriaged, defect)

Description

[Alex]

Attachment: FirefoxCrash.png

User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:49.0) Gecko/20100101 /
Build ID: 20160916101415

Steps to reproduce:

I set the following user settings to be able to open local file links in Windows Explorer on my company intranet website:
user_pref("capability.policy.policynames", "politiquelocale");
user_pref("capability.policy.politiquelocale.sites", "URL of intranet");
user_pref("capability.policy.politiquelocale.checkloaduri.enabled", "allAccess"); 
user_pref("network.protocol-handler.expose.file", false);
user_pref("network.protocol-handler.external.file", true);

When restarting Firefox, the home pages are not displayed, and there's a message saying the tab has crashed.
This worked well until Firefox 49 update.


Actual results:

When setting network.protocol-handler.external.file to true and restarting Firefox, all the tabpages crashed and I no longer can access any website. Please find attach a screenshot when this crash occur (in French).




Expected results:

We should be able to open local links in external applications with these settings, like it worked before.

Comment 1

[Loic]

I think it's a dupe of bug https://bugzilla.mozilla.org/show_bug.cgi?id=1300720#c12

Could you type about:crashes in the location bar and copy some crash reports links (bp-...).

In addition, could you test with e10s disabled in Firefox, crashes should stop:
browser.tabs.remote.autostart=false
browser.tabs.remote.autostart.2=false
(restart FF to apply)

Comment 2

[Alex]

Please find the two last crashes reports:
bp-abb5e186-0b69-4969-82f0-3e5b82160923
bp-48bfd737-9e32-4803-a176-9422e2160923

I tried to disable e10s, and crashes no longer occur.

You're right, it looks like it's the same bug than https://bugzilla.mozilla.org/show_bug.cgi?id=1300720#c12

Comment 3

[Loic]

Ty.