From e475b22f1d1e9d08a788519f21ee99a75b7a0d1b Mon Sep 17 00:00:00 2001
From: Dan Stillman <dstillman@zotero.org>
Date: Tue, 25 Jul 2017 16:27:31 -0400
Subject: [PATCH] Add intl.accept_languages from Mozilla language packs

---
 chrome/content/zotero/xpcom/zotero.js         | 30 +++++++++++++++++--
 .../af-ZA/zotero/mozilla/intl.properties      |  1 +
 .../locale/ar/zotero/mozilla/intl.properties  |  1 +
 .../bg-BG/zotero/mozilla/intl.properties      |  1 +
 .../ca-AD/zotero/mozilla/intl.properties      |  1 +
 .../cs-CZ/zotero/mozilla/intl.properties      |  1 +
 .../da-DK/zotero/mozilla/intl.properties      |  1 +
 .../locale/de/zotero/mozilla/intl.properties  |  1 +
 .../el-GR/zotero/mozilla/intl.properties      |  1 +
 .../en-US/zotero/mozilla/intl.properties      |  1 +
 .../es-ES/zotero/mozilla/intl.properties      |  1 +
 .../et-EE/zotero/mozilla/intl.properties      |  1 +
 .../eu-ES/zotero/mozilla/intl.properties      |  1 +
 .../locale/fa/zotero/mozilla/intl.properties  |  1 +
 .../fi-FI/zotero/mozilla/intl.properties      |  1 +
 .../fr-FR/zotero/mozilla/intl.properties      |  1 +
 .../gl-ES/zotero/mozilla/intl.properties      |  1 +
 .../he-IL/zotero/mozilla/intl.properties      |  1 +
 .../hr-HR/zotero/mozilla/intl.properties      |  1 +
 .../hu-HU/zotero/mozilla/intl.properties      |  1 +
 .../id-ID/zotero/mozilla/intl.properties      |  1 +
 .../is-IS/zotero/mozilla/intl.properties      |  1 +
 .../it-IT/zotero/mozilla/intl.properties      |  1 +
 .../ja-JP/zotero/mozilla/intl.properties      |  1 +
 .../locale/km/zotero/mozilla/intl.properties  |  1 +
 .../ko-KR/zotero/mozilla/intl.properties      |  1 +
 .../lt-LT/zotero/mozilla/intl.properties      |  1 +
 .../mn-MN/zotero/mozilla/intl.properties      |  1 +
 .../nb-NO/zotero/mozilla/intl.properties      |  1 +
 .../nl-NL/zotero/mozilla/intl.properties      |  1 +
 .../nn-NO/zotero/mozilla/intl.properties      |  1 +
 .../pl-PL/zotero/mozilla/intl.properties      |  1 +
 .../pt-BR/zotero/mozilla/intl.properties      |  1 +
 .../pt-PT/zotero/mozilla/intl.properties      |  1 +
 .../ro-RO/zotero/mozilla/intl.properties      |  1 +
 .../ru-RU/zotero/mozilla/intl.properties      |  1 +
 .../sk-SK/zotero/mozilla/intl.properties      |  1 +
 .../sl-SI/zotero/mozilla/intl.properties      |  1 +
 .../sr-RS/zotero/mozilla/intl.properties      |  1 +
 .../sv-SE/zotero/mozilla/intl.properties      |  1 +
 .../th-TH/zotero/mozilla/intl.properties      |  1 +
 .../tr-TR/zotero/mozilla/intl.properties      |  1 +
 .../uk-UA/zotero/mozilla/intl.properties      |  1 +
 .../vi-VN/zotero/mozilla/intl.properties      |  1 +
 .../zh-CN/zotero/mozilla/intl.properties      |  1 +
 .../zh-TW/zotero/mozilla/intl.properties      |  1 +
 46 files changed, 72 insertions(+), 3 deletions(-)

diff --git a/chrome/content/zotero/xpcom/zotero.js b/chrome/content/zotero/xpcom/zotero.js
index 51e30ae549..3da407126e 100644
--- a/chrome/content/zotero/xpcom/zotero.js
+++ b/chrome/content/zotero/xpcom/zotero.js
@@ -224,12 +224,36 @@ Services.scriptloader.loadSubScript("resource://zotero/polyfill.js");
 		// Browser
 		Zotero.browser = "g";
 		
-		// Get resolved locale
+		//
+		// Get settings from language pack (extracted by zotero-build/locale/merge_mozilla_files)
+		//
+		function getIntlProp(name, fallback = null) {
+			try {
+				return intlProps.GetStringFromName(name);
+			}
+			catch (e) {
+				Zotero.logError(`Couldn't load ${name} from intl.properties`);
+				return fallback;
+			}
+		}
+		function setOrClearIntlPref(name, type) {
+			var val = getIntlProp(name);
+			if (val !== null) {
+				if (type == 'boolean') {
+					val = val == 'true';
+				}
+				Zotero.Prefs.set(name, val, 1);
+			}
+			else {
+				Zotero.Prefs.clear(name, 1);
+			}
+		}
 		var intlProps = Services.strings.createBundle("chrome://zotero/locale/mozilla/intl.properties");
-		this.locale = intlProps.GetStringFromName("general.useragent.locale");
-		let [get, numForms] = PluralForm.makeGetter(intlProps.GetStringFromName("pluralRule"));
+		this.locale = getIntlProp('general.useragent.locale', 'en-US');
+		let [get, numForms] = PluralForm.makeGetter(parseInt(getIntlProp('pluralRule', 1)));
 		this.pluralFormGet = get;
 		this.pluralFormNumForms = numForms;
+		setOrClearIntlPref('intl.accept_languages', 'string');
 		
 		// Also load the brand as appName
 		var brandBundle = Services.strings.createBundle("chrome://branding/locale/brand.properties");
diff --git a/chrome/locale/af-ZA/zotero/mozilla/intl.properties b/chrome/locale/af-ZA/zotero/mozilla/intl.properties
index 1144f6c223..38bf515da8 100644
--- a/chrome/locale/af-ZA/zotero/mozilla/intl.properties
+++ b/chrome/locale/af-ZA/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=af-ZA
+intl.accept_languages=af, en-ZA, en-GB, en-US, en
 pluralRule=1
diff --git a/chrome/locale/ar/zotero/mozilla/intl.properties b/chrome/locale/ar/zotero/mozilla/intl.properties
index 2cbb529e58..7e0d579c35 100644
--- a/chrome/locale/ar/zotero/mozilla/intl.properties
+++ b/chrome/locale/ar/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=ar
+intl.accept_languages=ar, en-us, en
 pluralRule=12
diff --git a/chrome/locale/bg-BG/zotero/mozilla/intl.properties b/chrome/locale/bg-BG/zotero/mozilla/intl.properties
index b5594341b3..fd1b87537b 100644
--- a/chrome/locale/bg-BG/zotero/mozilla/intl.properties
+++ b/chrome/locale/bg-BG/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=bg-BG
+intl.accept_languages=bg, en-US, en
 pluralRule=1
diff --git a/chrome/locale/ca-AD/zotero/mozilla/intl.properties b/chrome/locale/ca-AD/zotero/mozilla/intl.properties
index 649ea02a4b..6707a43f49 100644
--- a/chrome/locale/ca-AD/zotero/mozilla/intl.properties
+++ b/chrome/locale/ca-AD/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=ca-AD
+intl.accept_languages=ca, en-us, en
 pluralRule=1
diff --git a/chrome/locale/cs-CZ/zotero/mozilla/intl.properties b/chrome/locale/cs-CZ/zotero/mozilla/intl.properties
index dc309c9a80..e403a704a4 100644
--- a/chrome/locale/cs-CZ/zotero/mozilla/intl.properties
+++ b/chrome/locale/cs-CZ/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=cs-CZ
 pluralRule=8
+intl.accept_languages=cs, en-us, en
diff --git a/chrome/locale/da-DK/zotero/mozilla/intl.properties b/chrome/locale/da-DK/zotero/mozilla/intl.properties
index 4ba3bfb307..29b8550aa1 100644
--- a/chrome/locale/da-DK/zotero/mozilla/intl.properties
+++ b/chrome/locale/da-DK/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=da-DK
 pluralRule=1
+intl.accept_languages=da, en-us, en
diff --git a/chrome/locale/de/zotero/mozilla/intl.properties b/chrome/locale/de/zotero/mozilla/intl.properties
index c70ac2f739..2e2a063a54 100644
--- a/chrome/locale/de/zotero/mozilla/intl.properties
+++ b/chrome/locale/de/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=de
+intl.accept_languages=de, en-US, en
 pluralRule=1
diff --git a/chrome/locale/el-GR/zotero/mozilla/intl.properties b/chrome/locale/el-GR/zotero/mozilla/intl.properties
index 5af03b6698..d14ef1ae67 100644
--- a/chrome/locale/el-GR/zotero/mozilla/intl.properties
+++ b/chrome/locale/el-GR/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=el-GR
+intl.accept_languages=el-GR, el, en-US, en
 pluralRule=1
diff --git a/chrome/locale/en-US/zotero/mozilla/intl.properties b/chrome/locale/en-US/zotero/mozilla/intl.properties
index 2ed2374872..cd8ec221a9 100644
--- a/chrome/locale/en-US/zotero/mozilla/intl.properties
+++ b/chrome/locale/en-US/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=en-US
+intl.accept_languages=en-US, en
 pluralRule=1
diff --git a/chrome/locale/es-ES/zotero/mozilla/intl.properties b/chrome/locale/es-ES/zotero/mozilla/intl.properties
index f4d91da74d..130cd6697b 100644
--- a/chrome/locale/es-ES/zotero/mozilla/intl.properties
+++ b/chrome/locale/es-ES/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale =es-ES
+intl.accept_languages = es-ES, es, en-US, en
 pluralRule = 1
diff --git a/chrome/locale/et-EE/zotero/mozilla/intl.properties b/chrome/locale/et-EE/zotero/mozilla/intl.properties
index 4aff8429f4..8d6770d01b 100644
--- a/chrome/locale/et-EE/zotero/mozilla/intl.properties
+++ b/chrome/locale/et-EE/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=et-EE
 pluralRule=1
+intl.accept_languages=et, et-ee, en-us, en
diff --git a/chrome/locale/eu-ES/zotero/mozilla/intl.properties b/chrome/locale/eu-ES/zotero/mozilla/intl.properties
index 9f6a533ad4..a49355dc99 100644
--- a/chrome/locale/eu-ES/zotero/mozilla/intl.properties
+++ b/chrome/locale/eu-ES/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=eu-ES
+intl.accept_languages=eu, en-us, en
 pluralRule=1
diff --git a/chrome/locale/fa/zotero/mozilla/intl.properties b/chrome/locale/fa/zotero/mozilla/intl.properties
index e296712dbc..c5f4b7dd84 100644
--- a/chrome/locale/fa/zotero/mozilla/intl.properties
+++ b/chrome/locale/fa/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=fa
+intl.accept_languages=fa-ir, fa, en-us, en
 pluralRule=0
diff --git a/chrome/locale/fi-FI/zotero/mozilla/intl.properties b/chrome/locale/fi-FI/zotero/mozilla/intl.properties
index 113a31c499..8668c637b4 100644
--- a/chrome/locale/fi-FI/zotero/mozilla/intl.properties
+++ b/chrome/locale/fi-FI/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=fi-FI
+intl.accept_languages=fi-fi, fi, en-us, en
 pluralRule=1
diff --git a/chrome/locale/fr-FR/zotero/mozilla/intl.properties b/chrome/locale/fr-FR/zotero/mozilla/intl.properties
index 3d6b46dc90..d937a4ceb6 100644
--- a/chrome/locale/fr-FR/zotero/mozilla/intl.properties
+++ b/chrome/locale/fr-FR/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=fr-FR
 pluralRule=2
+intl.accept_languages=fr, fr-fr, en-us, en
diff --git a/chrome/locale/gl-ES/zotero/mozilla/intl.properties b/chrome/locale/gl-ES/zotero/mozilla/intl.properties
index 2ed2374872..cd8ec221a9 100644
--- a/chrome/locale/gl-ES/zotero/mozilla/intl.properties
+++ b/chrome/locale/gl-ES/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=en-US
+intl.accept_languages=en-US, en
 pluralRule=1
diff --git a/chrome/locale/he-IL/zotero/mozilla/intl.properties b/chrome/locale/he-IL/zotero/mozilla/intl.properties
index 1aca412dff..bf7fe4d6f3 100644
--- a/chrome/locale/he-IL/zotero/mozilla/intl.properties
+++ b/chrome/locale/he-IL/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=he-IL
+intl.accept_languages=he, he-IL, en-US, en
 pluralRule=1
diff --git a/chrome/locale/hr-HR/zotero/mozilla/intl.properties b/chrome/locale/hr-HR/zotero/mozilla/intl.properties
index 5d49e39e29..b7bb04c028 100644
--- a/chrome/locale/hr-HR/zotero/mozilla/intl.properties
+++ b/chrome/locale/hr-HR/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=hr-HR
+intl.accept_languages=hr-hr, hr, en-us, en
 pluralRule=7
diff --git a/chrome/locale/hu-HU/zotero/mozilla/intl.properties b/chrome/locale/hu-HU/zotero/mozilla/intl.properties
index 182c675bfc..be3f7ff249 100644
--- a/chrome/locale/hu-HU/zotero/mozilla/intl.properties
+++ b/chrome/locale/hu-HU/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=hu-HU
+intl.accept_languages=hu-hu, hu, en-US, en
 pluralRule=1
diff --git a/chrome/locale/id-ID/zotero/mozilla/intl.properties b/chrome/locale/id-ID/zotero/mozilla/intl.properties
index 0fdd2d46e8..ba4d8c6f5b 100644
--- a/chrome/locale/id-ID/zotero/mozilla/intl.properties
+++ b/chrome/locale/id-ID/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=id-ID
+intl.accept_languages=id, en-us, en
 pluralRule=0
diff --git a/chrome/locale/is-IS/zotero/mozilla/intl.properties b/chrome/locale/is-IS/zotero/mozilla/intl.properties
index 2ab50500b9..9a911c46d8 100644
--- a/chrome/locale/is-IS/zotero/mozilla/intl.properties
+++ b/chrome/locale/is-IS/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=is-IS
+intl.accept_languages=is, en-us, en
 pluralRule=15
diff --git a/chrome/locale/it-IT/zotero/mozilla/intl.properties b/chrome/locale/it-IT/zotero/mozilla/intl.properties
index 97caf5aaa7..5634f8291d 100644
--- a/chrome/locale/it-IT/zotero/mozilla/intl.properties
+++ b/chrome/locale/it-IT/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale =it-IT
+intl.accept_languages = it-IT, it, en-US, en
 pluralRule = 1
diff --git a/chrome/locale/ja-JP/zotero/mozilla/intl.properties b/chrome/locale/ja-JP/zotero/mozilla/intl.properties
index 12dc41cd3b..241ce55d57 100644
--- a/chrome/locale/ja-JP/zotero/mozilla/intl.properties
+++ b/chrome/locale/ja-JP/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale		=ja-JP
+intl.accept_languages			= ja, en-us, en
 pluralRule				= 0
diff --git a/chrome/locale/km/zotero/mozilla/intl.properties b/chrome/locale/km/zotero/mozilla/intl.properties
index 5d02ea2558..15443e23d9 100644
--- a/chrome/locale/km/zotero/mozilla/intl.properties
+++ b/chrome/locale/km/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=km
+intl.accept_languages=km, en-US, en
 pluralRule=1
diff --git a/chrome/locale/ko-KR/zotero/mozilla/intl.properties b/chrome/locale/ko-KR/zotero/mozilla/intl.properties
index a32cdaf831..c08282d0ed 100644
--- a/chrome/locale/ko-KR/zotero/mozilla/intl.properties
+++ b/chrome/locale/ko-KR/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=ko-KR
+intl.accept_languages=ko-kr, ko, en-us, en
 pluralRule=0
diff --git a/chrome/locale/lt-LT/zotero/mozilla/intl.properties b/chrome/locale/lt-LT/zotero/mozilla/intl.properties
index 5147c10d51..bb153953a5 100644
--- a/chrome/locale/lt-LT/zotero/mozilla/intl.properties
+++ b/chrome/locale/lt-LT/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=lt-LT
+intl.accept_languages=lt, en-us, en, ru, pl
 pluralRule=6
diff --git a/chrome/locale/mn-MN/zotero/mozilla/intl.properties b/chrome/locale/mn-MN/zotero/mozilla/intl.properties
index 2ed2374872..cd8ec221a9 100644
--- a/chrome/locale/mn-MN/zotero/mozilla/intl.properties
+++ b/chrome/locale/mn-MN/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=en-US
+intl.accept_languages=en-US, en
 pluralRule=1
diff --git a/chrome/locale/nb-NO/zotero/mozilla/intl.properties b/chrome/locale/nb-NO/zotero/mozilla/intl.properties
index 19aaf41ef7..feb857e7d4 100644
--- a/chrome/locale/nb-NO/zotero/mozilla/intl.properties
+++ b/chrome/locale/nb-NO/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=nb-NO
+intl.accept_languages=nb-no, nb, no-no, no, nn-no, nn, en-us, en
 pluralRule=1
diff --git a/chrome/locale/nl-NL/zotero/mozilla/intl.properties b/chrome/locale/nl-NL/zotero/mozilla/intl.properties
index cc11e51b2f..1c236fc048 100644
--- a/chrome/locale/nl-NL/zotero/mozilla/intl.properties
+++ b/chrome/locale/nl-NL/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=nl-NL
+intl.accept_languages=nl, en-US, en
 pluralRule=1
diff --git a/chrome/locale/nn-NO/zotero/mozilla/intl.properties b/chrome/locale/nn-NO/zotero/mozilla/intl.properties
index df7764dcbe..9a3d52436f 100644
--- a/chrome/locale/nn-NO/zotero/mozilla/intl.properties
+++ b/chrome/locale/nn-NO/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=nn-NO
+intl.accept_languages=nn-no, nn, no-no, no, nb-no, nb, en-us, en
 pluralRule=1
diff --git a/chrome/locale/pl-PL/zotero/mozilla/intl.properties b/chrome/locale/pl-PL/zotero/mozilla/intl.properties
index b9c6bb7205..4b8067eb82 100644
--- a/chrome/locale/pl-PL/zotero/mozilla/intl.properties
+++ b/chrome/locale/pl-PL/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=pl-PL
+intl.accept_languages=pl, en-US, en
 pluralRule=9
diff --git a/chrome/locale/pt-BR/zotero/mozilla/intl.properties b/chrome/locale/pt-BR/zotero/mozilla/intl.properties
index a38e676bf3..2ae5d08d8e 100644
--- a/chrome/locale/pt-BR/zotero/mozilla/intl.properties
+++ b/chrome/locale/pt-BR/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=pt-BR
+intl.accept_languages=pt-BR, pt, en-US, en
 pluralRule=1
diff --git a/chrome/locale/pt-PT/zotero/mozilla/intl.properties b/chrome/locale/pt-PT/zotero/mozilla/intl.properties
index 76d1998a76..58d02f8ea6 100644
--- a/chrome/locale/pt-PT/zotero/mozilla/intl.properties
+++ b/chrome/locale/pt-PT/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=pt-PT
+intl.accept_languages=pt-pt, pt, en, en-us
 pluralRule=1
diff --git a/chrome/locale/ro-RO/zotero/mozilla/intl.properties b/chrome/locale/ro-RO/zotero/mozilla/intl.properties
index f2890b47fe..62082103a3 100644
--- a/chrome/locale/ro-RO/zotero/mozilla/intl.properties
+++ b/chrome/locale/ro-RO/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=ro-RO
 pluralRule=1
+intl.accept_languages=ro-ro, ro, en-us, en-gb, en
diff --git a/chrome/locale/ru-RU/zotero/mozilla/intl.properties b/chrome/locale/ru-RU/zotero/mozilla/intl.properties
index b50bbc29c3..41a747963c 100644
--- a/chrome/locale/ru-RU/zotero/mozilla/intl.properties
+++ b/chrome/locale/ru-RU/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale =ru-RU
+intl.accept_languages = ru-RU, ru, en-US, en
 pluralRule = 7
diff --git a/chrome/locale/sk-SK/zotero/mozilla/intl.properties b/chrome/locale/sk-SK/zotero/mozilla/intl.properties
index cd9818a25a..ec44ec130c 100644
--- a/chrome/locale/sk-SK/zotero/mozilla/intl.properties
+++ b/chrome/locale/sk-SK/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=sk-SK
+intl.accept_languages=sk, cs, en-US, en
 pluralRule=8
diff --git a/chrome/locale/sl-SI/zotero/mozilla/intl.properties b/chrome/locale/sl-SI/zotero/mozilla/intl.properties
index f49a46998c..7a3f029bc0 100644
--- a/chrome/locale/sl-SI/zotero/mozilla/intl.properties
+++ b/chrome/locale/sl-SI/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=sl-SI
+intl.accept_languages=sl, en-gb, en
 pluralRule=10
diff --git a/chrome/locale/sr-RS/zotero/mozilla/intl.properties b/chrome/locale/sr-RS/zotero/mozilla/intl.properties
index 073efa72eb..9ced27e82a 100644
--- a/chrome/locale/sr-RS/zotero/mozilla/intl.properties
+++ b/chrome/locale/sr-RS/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=sr-RS
+intl.accept_languages=sr, sr-rs, sr-cs, en-us, en
 pluralRule=7
diff --git a/chrome/locale/sv-SE/zotero/mozilla/intl.properties b/chrome/locale/sv-SE/zotero/mozilla/intl.properties
index 92aecf1036..3e412c4917 100644
--- a/chrome/locale/sv-SE/zotero/mozilla/intl.properties
+++ b/chrome/locale/sv-SE/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=sv-SE
+intl.accept_languages=sv-SE, sv, en-US, en
 pluralRule=1
diff --git a/chrome/locale/th-TH/zotero/mozilla/intl.properties b/chrome/locale/th-TH/zotero/mozilla/intl.properties
index b47e8e41f0..f88efdd159 100644
--- a/chrome/locale/th-TH/zotero/mozilla/intl.properties
+++ b/chrome/locale/th-TH/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=th-TH
+intl.accept_languages=th-th, th, en-us, en-gb, en
 pluralRule=0
diff --git a/chrome/locale/tr-TR/zotero/mozilla/intl.properties b/chrome/locale/tr-TR/zotero/mozilla/intl.properties
index 7380c62183..555379f7f1 100644
--- a/chrome/locale/tr-TR/zotero/mozilla/intl.properties
+++ b/chrome/locale/tr-TR/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=tr-TR
+intl.accept_languages=tr-TR, tr, en-US, en
 pluralRule=0
diff --git a/chrome/locale/uk-UA/zotero/mozilla/intl.properties b/chrome/locale/uk-UA/zotero/mozilla/intl.properties
index 451daafbef..3afe1cc26f 100644
--- a/chrome/locale/uk-UA/zotero/mozilla/intl.properties
+++ b/chrome/locale/uk-UA/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=uk-UA
+intl.accept_languages=uk, ru, en-us, en
 pluralRule=7
diff --git a/chrome/locale/vi-VN/zotero/mozilla/intl.properties b/chrome/locale/vi-VN/zotero/mozilla/intl.properties
index 7bd8ac6465..9c8184068c 100644
--- a/chrome/locale/vi-VN/zotero/mozilla/intl.properties
+++ b/chrome/locale/vi-VN/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=vi-VN
+intl.accept_languages=vi-vn, vi, en-us, en
 pluralRule=1
diff --git a/chrome/locale/zh-CN/zotero/mozilla/intl.properties b/chrome/locale/zh-CN/zotero/mozilla/intl.properties
index 98762d07ed..082e59dc31 100644
--- a/chrome/locale/zh-CN/zotero/mozilla/intl.properties
+++ b/chrome/locale/zh-CN/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=zh-CN
+intl.accept_languages=zh-cn, zh, en-us, en
 pluralRule=1
diff --git a/chrome/locale/zh-TW/zotero/mozilla/intl.properties b/chrome/locale/zh-TW/zotero/mozilla/intl.properties
index fd4ad32ae3..9dbdd01fb1 100644
--- a/chrome/locale/zh-TW/zotero/mozilla/intl.properties
+++ b/chrome/locale/zh-TW/zotero/mozilla/intl.properties
@@ -1,2 +1,3 @@
 general.useragent.locale=zh-TW
+intl.accept_languages=zh-tw, zh, en-us, en
 pluralRule=0