Bug 1493582

Summary:	Fedora builds use nonstandard locale codes
Product:	[Fedora] Fedora	Reporter:	Michal Stanke [:MikkCZ][:mstanke] (use needinfo) <michal>
Component:	firefox	Assignee:	Gecko Maintainer <gecko-bugs-nobody>
Status:	CLOSED UPSTREAM	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	26	CC:	alexl, gecko-bugs-nobody, jhorak, john.j5live, kengert, pjasicek, rhughes, rstrode, sandmann, stransky
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-09-21 09:55:05 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Michal Stanke [:MikkCZ][:mstanke] (use needinfo) 2017-09-20 14:26:33 UTC

Steps to Reproduce:
1. Install Czech version of Fedora.
2. Open pre-installed Firefox.
3. Open about:config and find "general.useragent.locale".

Actual results:
The value "cs-CZ" is non-standard (Mozilla builds have "cs" only, respectively for all languages use two character codes unless there are more regions). Consequently is breaks the usage of WebExtensions i18n API [1], returning value that is not expected by extensions.

Expected results:
The "general.useragent.locale" should be the same as for builds made by Mozilla and correspond to the Mozilla locale ("cs" in case of Czech).

Mozilla builds and languages:
https://product-details.mozilla.org/1.0/firefox_primary_builds.json
https://product-details.mozilla.org/1.0/languages.json

Additional info:
[1] https://developer.mozilla.org/en-US/Add-ons/WebExtensions/API/i18n/getUILanguage

Comment 1 Michal Stanke [:MikkCZ][:mstanke] (use needinfo) 2017-09-21 09:55:05 UTC

Turned out to be a bug in localization upstream (in toolkit/chrome/global/intl.properties).