diff --git a/chrome/locale/br/zotero/mozilla/browser.dtd b/chrome/locale/br/zotero/mozilla/browser.dtd
index 3ee70c4f5a..559be8d7e7 100644
--- a/chrome/locale/br/zotero/mozilla/browser.dtd
+++ b/chrome/locale/br/zotero/mozilla/browser.dtd
@@ -1,2 +1,4 @@
 <!ENTITY preferencesCmd2.label       "Options">
+<!ENTITY preferencesCmd2.accesskey     "O">
 <!ENTITY preferencesCmdUnix.label       "Preferences">
+<!ENTITY preferencesCmdUnix.accesskey     "n">
diff --git a/chrome/locale/gl-ES/zotero/mozilla/browser.dtd b/chrome/locale/gl-ES/zotero/mozilla/browser.dtd
index 3ee70c4f5a..559be8d7e7 100644
--- a/chrome/locale/gl-ES/zotero/mozilla/browser.dtd
+++ b/chrome/locale/gl-ES/zotero/mozilla/browser.dtd
@@ -1,2 +1,4 @@
 <!ENTITY preferencesCmd2.label       "Options">
+<!ENTITY preferencesCmd2.accesskey     "O">
 <!ENTITY preferencesCmdUnix.label       "Preferences">
+<!ENTITY preferencesCmdUnix.accesskey     "n">
diff --git a/chrome/locale/mn-MN/zotero/mozilla/browser.dtd b/chrome/locale/mn-MN/zotero/mozilla/browser.dtd
index 3ee70c4f5a..559be8d7e7 100644
--- a/chrome/locale/mn-MN/zotero/mozilla/browser.dtd
+++ b/chrome/locale/mn-MN/zotero/mozilla/browser.dtd
@@ -1,2 +1,4 @@
 <!ENTITY preferencesCmd2.label       "Options">
+<!ENTITY preferencesCmd2.accesskey     "O">
 <!ENTITY preferencesCmdUnix.label       "Preferences">
+<!ENTITY preferencesCmdUnix.accesskey     "n">