diff --git a/toolkit/locales/en-US/chrome/global/regionNames.properties b/toolkit/locales/en-US/chrome/global/regionNames.properties
index 29287a65f84..11a6a79e4be 100644
--- a/toolkit/locales/en-US/chrome/global/regionNames.properties
+++ b/toolkit/locales/en-US/chrome/global/regionNames.properties
@@ -3,12 +3,13 @@
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 ad	=	Andorra
-ae	=	United Arab Emirates
+ae	=	U.A.E.
 af	=	Afghanistan
 ag	=	Antigua and Barbuda
 ai	=	Anguilla
 al	=	Albania
 am	=	Armenia
+an	=	Netherlands Antilles
 ao	=	Angola
 aq	=	Antarctica
 ar	=	Argentina
@@ -16,6 +17,7 @@ as	=	American Samoa
 at	=	Austria
 au	=	Australia
 aw	=	Aruba
+ax	=	\u00c5land Islands
 az	=	Azerbaijan
 ba	=	Bosnia and Herzegovina
 bb	=	Barbados
@@ -26,13 +28,12 @@ bg	=	Bulgaria
 bh	=	Bahrain
 bi	=	Burundi
 bj	=	Benin
-bl	=	Saint Barthelemy
+bl	=	Saint Barth\u00e9lemy
 bm	=	Bermuda
-bn	=	Brunei
+bn	=	Brunei Darussalam
 bo	=	Bolivia
-bq	=	Bonaire, Sint Eustatius, and Saba
 br	=	Brazil
-bs	=	Bahamas, The
+bs	=	Bahamas
 bt	=	Bhutan
 bv	=	Bouvet Island
 bw	=	Botswana
@@ -40,26 +41,23 @@ by	=	Belarus
 bz	=	Belize
 ca	=	Canada
 cc	=	Cocos (Keeling) Islands
-cd	=	Congo (Kinshasa)
+cd	=	Congo-Kinshasa
 cf	=	Central African Republic
-cg	=	Congo (Brazzaville)
+cg	=	Congo-Brazzaville
 ch	=	Switzerland
-ci	=	Côte d’Ivoire
+ci	=	Ivory Coast
 ck	=	Cook Islands
 cl	=	Chile
 cm	=	Cameroon
 cn	=	China
 co	=	Colombia
-cp	=	Clipperton Island
 cr	=	Costa Rica
 cu	=	Cuba
-cv	=	Cabo Verde
-cw	=	Curaçao
+cv	=	Cape Verde
 cx	=	Christmas Island
 cy	=	Cyprus
 cz	=	Czech Republic
 de	=	Germany
-dg	=	Diego Garcia
 dj	=	Djibouti
 dk	=	Denmark
 dm	=	Dominica
@@ -74,8 +72,8 @@ es	=	Spain
 et	=	Ethiopia
 fi	=	Finland
 fj	=	Fiji
-fk	=	Falkland Islands (Islas Malvinas)
-fm	=	Micronesia, Federated States of
+fk	=	Falkland Islands (Malvinas)
+fm	=	Micronesia
 fo	=	Faroe Islands
 fr	=	France
 ga	=	Gabon
@@ -87,12 +85,12 @@ gg	=	Guernsey
 gh	=	Ghana
 gi	=	Gibraltar
 gl	=	Greenland
-gm	=	Gambia, The
+gm	=	Gambia
 gn	=	Guinea
 gp	=	Guadeloupe
 gq	=	Equatorial Guinea
 gr	=	Greece
-gs	=	South Georgia and South Sandwich Islands
+gs	=	South Georgia and the South Sandwich Islands
 gt	=	Guatemala
 gu	=	Guam
 gw	=	Guinea-Bissau
@@ -123,8 +121,8 @@ kh	=	Cambodia
 ki	=	Kiribati
 km	=	Comoros
 kn	=	Saint Kitts and Nevis
-kp	=	Korea, North
-kr	=	Korea, South
+kp	=	North Korea
+kr	=	South Korea 
 kw	=	Kuwait
 ky	=	Cayman Islands
 kz	=	Kazakhstan
@@ -146,11 +144,11 @@ me	=	Montenegro
 mf	=	Saint Martin
 mg	=	Madagascar
 mh	=	Marshall Islands
-mk	=	Macedonia
+mk	=	Macedonia, F.Y.R. of
 ml	=	Mali
-mm	=	Burma
+mm	=	Myanmar
 mn	=	Mongolia
-mo	=	Macau
+mo	=	Macao 
 mp	=	Northern Mariana Islands
 mq	=	Martinique
 mr	=	Mauritania
@@ -183,22 +181,17 @@ ph	=	Philippines
 pk	=	Pakistan
 pl	=	Poland
 pm	=	Saint Pierre and Miquelon
-pn	=	Pitcairn Islands
+pn	=	Pitcairn
 pr	=	Puerto Rico
+ps	=	Occupied Palestinian Territory
 pt	=	Portugal
 pw	=	Palau
 py	=	Paraguay
 qa	=	Qatar
-qm	=	Midway Islands
-qs	=	Bassas da India
-qu	=	Juan de Nova Island
-qw	=	Wake Island
-qx	=	Glorioso Islands
-qz	=	Akrotiri
 re	=	Reunion
 ro	=	Romania
 rs	=	Serbia
-ru	=	Russia
+ru	=	Russian Federation
 rw	=	Rwanda
 sa	=	Saudi Arabia
 sb	=	Solomon Islands
@@ -206,23 +199,22 @@ sc	=	Seychelles
 sd	=	Sudan
 se	=	Sweden
 sg	=	Singapore
-sh	=	Saint Helena, Ascension, and Tristan da Cunha
+sh	=	Saint Helena
 si	=	Slovenia
+sj	=	Svalbard and Jan Mayen
 sk	=	Slovakia
 sl	=	Sierra Leone
 sm	=	San Marino
 sn	=	Senegal
 so	=	Somalia
 sr	=	Suriname
-ss	=	South Sudan
 st	=	Sao Tome and Principe
 sv	=	El Salvador
-sx	=	Sint Maarten
 sy	=	Syria
 sz	=	Swaziland
 tc	=	Turks and Caicos Islands
 td	=	Chad
-tf	=	French Southern and Antarctic Lands
+tf	=	French Southern Territories
 tg	=	Togo
 th	=	Thailand
 tj	=	Tajikistan
@@ -238,37 +230,19 @@ tw	=	Taiwan
 tz	=	Tanzania
 ua	=	Ukraine
 ug	=	Uganda
+um	=	United States Minor Outlying Islands
 us	=	United States
 uy	=	Uruguay
 uz	=	Uzbekistan
 va	=	Vatican City
 vc	=	Saint Vincent and the Grenadines
 ve	=	Venezuela
-vg	=	Virgin Islands, British
-vi	=	Virgin Islands, U.S.
+vg	=	British Virgin Islands
+vi	=	U.S. Virgin Islands
 vn	=	Vietnam
 vu	=	Vanuatu
 wf	=	Wallis and Futuna
 ws	=	Samoa
-xa	=	Ashmore and Cartier Islands
-xb	=	Baker Island
-xc	=	Coral Sea Islands
-xd	=	Dhekelia
-xe	=	Europa Island
-xg	=	Gaza Strip
-xh	=	Howland Island
-xj	=	Jan Mayen
-xk	=	Kosovo
-xl	=	Palmyra Atoll
-xm	=	Kingman Reef
-xp	=	Paracel Islands
-xq	=	Jarvis Island
-xr	=	Svalbard
-xs	=	Spratly Islands
-xt	=	Tromelin Island
-xu	=	Johnston Atoll
-xv	=	Navassa Island
-xw	=	West Bank
 ye	=	Yemen
 yt	=	Mayotte
 za	=	South Africa