281730 - Settings in about:config don't persist after quitting application and showing wrong information

Status: RESOLVED DUPLICATE of bug 261934

(Firefox :: General, defect)

Description

[Frank]

User-Agent:       Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0
Build Identifier: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0

If you set "network.enableIDN" to false for its default of true and then go to
the website "http://www.shmoo.com/idn" and click on the link it should give you
an server not found error. Then you quit Firefox and then start Firefox again
then check the about:config and check the setting "network.enableIDN" is still
false. But if you go to the website "http://www.shmoo.com/idn" and click on the
link it should give you an server not found error but now it shows "meeow" the
spoofed site which the making "network.enableIDN" false should stop. Now change
the toggle the setting in "network.enableIDN" from false to true and back to
false and now test this by going to the website "http://www.shmoo.com/idn" and
click on the links it should give you an server not found error.

Reproducible: Always

Steps to Reproduce:
1.Start Firefox.
2.In address field type "about:config" and click go.
3.In the filter field type "network.enable" and select "network.enableIDN"
4.Change the setting on a Macintosh pressing "cntl" click or a Windows
right-click and toggle the setting from "true" to "false".
5.In the address field type "www.shmoo.com/idn" and click go.
6.Click in either "Click here to enter paypal" or "Click here to enter paypal
via ssl" and you will get an pop up window with an message of an server not
found error.
7.Quit Firefox.
8.Start Firefox.
9.In address field type "about:config" and click go.
10.In the filter field type "network.enable" and select "network.enableIDN"
11.Note the setting is still false.
12.In the address field type "www.shmoo.com/idn" and click go.
13.Click in either "Click here to enter paypal" or "Click here to enter paypal
via ssl" and you will get web page with the word "meeow" on it and this should
be an pop up window with an message of an server not found error.
14.In address field type "about:config" and click go.
15.In the filter field type "network.enable" and select "network.enableIDN"
16.Change the setting on a Macintosh pressing "cntl" click or a Windows
right-click and toggle the setting from "false" to "true" to "false".
17.In the address field type "www.shmoo.com/idn" and click go.
18.Click in either "Click here to enter paypal" or "Click here to enter paypal
via ssl" and you will get an pop up window with an message of an server not
found error.
Actual Results:  
Changing setting in about:config are being set correctly and shows correctly and
acts correctly for current session and if you quit the application and start the
application look at the settings the settings appear to be the same but testing
the setting doesn't act correctly. If you change the setting back to default and
then back the settings are showing and acting correctly again.

Expected Results:  
If I set an setting in about:config and it shows that setting and if I quit the
application and I check the setting the setting is the same from the previous
session then I expect this setting show and act as in the previous sesssion.

This is brought up from another bug in IDN is from Eric Eric Johanson that in he
showed to prevent this to disable network IDN but I found that the it would
working only in the current session but if I quit and start the Firefox and then
look at the settings the setting appear to be set from the previous session but
the IDN bug still shows. If I toggle this setting the the session I will have
setting show and act correctly.

Comment 1

[:Gavin Sharp [email: [e-mail]]]

That pref specifically previously didn't work, and that bug has since been fixed.

*** This bug has been marked as a duplicate of 261934 ***