306424 - crash if load nsIPasswordManager during app-startup observer

Status: RESOLVED DUPLICATE of bug 294075

(Toolkit :: Password Manager, defect)

Description

[em_te]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.10) Gecko/20050716 Firefox/1.0.6
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.10) Gecko/20050716 Firefox/1.0.6

I wrote an XPCOM component that starts up by registering with the
nsICategoryManager and observing the "app-startup" topic. If I try to get a
nsIPasswordManager object during the startup phase, Firefox crashes. No
"exception" info is printed to the dump screen.

Other general XPCOM components (nsIPrefBranch) can be created with no problem.

I sought help at Mozillazine
(http://forums.mozillazine.org/viewtopic.php?t=311327). 

Quoting Asqueella's words:
"It crashes here, because mSignonFile is null. I guess that's because the
profile isn't yet loaded." ["here" hyperlinks to
http://lxr.mozilla.org/seamonkey/source/toolkit/components/passwordmgr/base/nsPasswordManager.cpp#290]

I don't know if this is a bug or just me doing things in the wrong order. But it
was hinted that "[a] common principle is that JS code shouldn't be able to crash
core code." (Mozillazine)

Reproducible: Always

Steps to Reproduce:
See testcase

Comment 1

[em_te]

Attachment: minimal testcase (WILL CRASH BROWSER)

Comment 2

[Christian :Biesinger (don't email me, ping me on IRC)]

If firefox's password manager crashes, then that is not likely to be due to
XPCOM. changing product to firefox.

>"[a] common principle is that JS code shouldn't be able to crash
>core code." (Mozillazine)

out of curiousity, what URL is that from?

Comment 3

[Christian :Biesinger (don't email me, ping me on IRC)]

> out of curiousity, what URL is that from?

nevermind, found it

Comment 4

[Nickolay_Ponomarev]

The patch in bug 294075 would fix this crash.

*** This bug has been marked as a duplicate of 294075 ***