1872632 - network.IDN_show_punycode preference no longer usable

Status: RESOLVED FIXED

(Thunderbird :: Preferences, defect)

Description

Attachment: thunderbird-config.png

Steps to reproduce:

Starting from the release 115.5.2, the setting network.IDN_show_punycode is always disabled and locked, likely after changes in https://hg.mozilla.org/releases/comm-esr115/rev/415f6131a2dd to fix bug 1857824. The regression is still present in the beta 122.0b1.

This setting is really useful to avoid IDN homograph attacks. Silently disabling it decreases security for users who do not even rely on IDNs.

Steps to reproduce

1. Try to set network.IDN_show_punycode to true in config editor.
2. Send yourself a test message containing a link to "https://www.аррӏе.com/" for instance.

Actual results:

In config editor, the setting is locked to false (for both existing and new profiles).
In the message window, hovering the link shows the target as unicode instead of a punycode sequence.

Expected results:

Up to the release 115.5.1, it was possible to enable IDN_show_punycode, which displayed the target of the link example above as the punycode sequence "https://www.xn--80ak6aa92e.com/".

Comment 1

[Magnus Melin [:mkmelin]]

Attachment: Bug 1872632 - Use IDN service directly when finding server. r=babolivier

Depends on D197066

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/comm-central/rev/800fb310e246
Use IDN service directly when finding server. r=babolivier

Comment 3

[Magnus Melin [:mkmelin]]

Comment on attachment 9370767 [details]
Bug 1872632 - Use IDN service directly when finding server. r=babolivier

[Approval Request Comment]
Should go with bug 1870720

Comment 4

[Wayne Mery (:wsmwk)]

Comment on attachment 9370767 [details]
Bug 1872632 - Use IDN service directly when finding server. r=babolivier

[Triage Comment]
Approved for beta

Comment 5

[Rob Lemley [:rjl]]

Thunderbird 122.0b3:
https://hg.mozilla.org/releases/comm-beta/rev/e17497d859d7

Comment 6

[Wayne Mery (:wsmwk)]

Comment on attachment 9370767 [details]
Bug 1872632 - Use IDN service directly when finding server. r=babolivier

[Triage Comment]
Approved for esr115

Comment 7

[Daniel Darnell [:dandarnell]]

Thunderbird 115.7.0:
https://hg.mozilla.org/releases/comm-esr115/rev/c9d41f6224b7