--- a/intl/locale/langGroups.properties
+++ b/intl/locale/langGroups.properties
@@ -16,31 +16,35 @@
 # (arc)/Avestan script.)
 #ae=ar
 
 ab=x-cyrillic
 ach=x-western
 af=x-western
 alg=x-cans
 am=x-ethi
+an=x-western
 ar=ar
 as=x-beng
+ast=x-western
 ay=x-western
+az=x-western
 be=x-cyrillic
 bg=x-cyrillic
 bn=x-beng
 bo=x-tibt
 br=x-western
 bs=x-western
 ca=x-western
 cak=x-western
 ce=x-western
 ch=x-western
 co=x-western
 cr=x-cans
+crh=x-western
 cs=x-western
 csb=x-western
 #cu=x-cyrillic
 cv=x-cyrillic
 cy=x-western
 da=x-western
 de=x-western
 dsb=x-western
@@ -98,19 +102,22 @@ kw=x-western
 #ky=x-cyrillic
 la=x-western
 lb=x-western
 lij=x-western
 ln=x-western
 lt=x-western
 ltg=x-western
 lv=x-western
+mai=x-devanagari
+meh=x-western
 mg=x-western
 mh=x-western
 mi=x-western
+mix=x-western
 mk=x-cyrillic
 ml=x-mlym
 # Mongolian script is also used for Mongolian
 mn=x-cyrillic
 mr=x-devanagari
 ms=x-western
 mt=x-western
 na=x-western
@@ -172,16 +179,17 @@ tl=x-western
 tlh=x-western
 tn=x-western
 to=x-western
 tr=x-western
 ts=x-western
 tt=x-western
 uk=x-cyrillic
 ur=ar
+uz=x-western
 ve=x-western
 vi=x-western
 vo=x-western
 wa=x-western
 wo=x-western
 xh=x-western
 yi=he
 yo=x-western

--- a/intl/locale/language.properties
+++ b/intl/locale/language.properties
@@ -43,16 +43,17 @@ bo.accept     = true
 br.accept     = true
 bs.accept     = true
 ca.accept     = true
 cak.accept    = true
 ce.accept     = true
 ch.accept     = true
 co.accept     = true
 cr.accept     = true
+crh.accept    = true
 cs.accept     = true
 csb.accept    = true
 cu.accept     = true
 cv.accept     = true
 cy.accept     = true
 da.accept     = true
 de.accept     = true
 de-at.accept  = true
@@ -171,19 +172,22 @@ lg.accept     = true
 li.accept     = true
 lij.accept    = true
 ln.accept     = true
 lo.accept     = true
 lt.accept     = true
 ltg.accept    = true
 lu.accept     = true
 lv.accept     = true
+mai.accept    = true
+meh.accept    = true
 mg.accept     = true
 mh.accept     = true
 mi.accept     = true
+mix.accept    = true
 mk.accept     = true
 mk-mk.accept  = true
 ml.accept     = true
 mn.accept     = true
 mr.accept     = true
 ms.accept     = true
 mt.accept     = true
 my.accept     = true
@@ -226,16 +230,17 @@ sa.accept     = true
 sc.accept     = true
 sd.accept     = true
 sg.accept     = true
 si.accept     = true
 sk.accept     = true
 sl.accept     = true
 sm.accept     = true
 so.accept     = true
+son.accept    = true
 son-ml.accept = true
 sq.accept     = true
 sr.accept     = true
 ss.accept     = true
 st.accept     = true
 su.accept     = true
 sv.accept     = true
 sv-fi.accept  = true

--- a/toolkit/locales/en-US/chrome/global/languageNames.properties
+++ b/toolkit/locales/en-US/chrome/global/languageNames.properties
@@ -27,16 +27,17 @@ bo = Tibetan
 br = Breton
 bs = Bosnian
 ca = Catalan
 cak = Kaqchikel
 ce = Chechen
 ch = Chamorro
 co = Corsican
 cr = Cree
+crh = Crimean Tatar
 cs = Czech
 csb = Kashubian
 cu = Church Slavic
 cv = Chuvash
 cy = Welsh
 da = Danish
 de = German
 dsb = Lower Sorbian
@@ -110,19 +111,22 @@ lg = Ganda
 li = Limburgan
 lij = Ligurian
 ln = Lingala
 lo = Lao
 lt = Lithuanian
 ltg = Latgalian
 lu = Luba-Katanga
 lv = Latvian
+mai = Maithili
+meh = Southwestern Tlaxiaco Mixtec
 mg = Malagasy
 mh = Marshallese
 mi = Maori
+mix = Mixtepec Mixtec
 mk = Macedonian
 ml = Malayalam
 mn = Mongolian
 mr = Marathi
 ms = Malay
 mt = Maltese
 my = Burmese
 na = Nauru