diff --git a/chrome/locale/af-ZA/zotero/zotero.dtd b/chrome/locale/af-ZA/zotero/zotero.dtd
index 8f12c3519..052994580 100644
--- a/chrome/locale/af-ZA/zotero/zotero.dtd
+++ b/chrome/locale/af-ZA/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/ar/zotero/zotero.dtd b/chrome/locale/ar/zotero/zotero.dtd
index d7252d49a..8e48a6728 100644
--- a/chrome/locale/ar/zotero/zotero.dtd
+++ b/chrome/locale/ar/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/bg-BG/zotero/zotero.dtd b/chrome/locale/bg-BG/zotero/zotero.dtd
index 11d2db1c8..18379d284 100644
--- a/chrome/locale/bg-BG/zotero/zotero.dtd
+++ b/chrome/locale/bg-BG/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/ca-AD/zotero/zotero.dtd b/chrome/locale/ca-AD/zotero/zotero.dtd
index 486bb59ea..30818d658 100644
--- a/chrome/locale/ca-AD/zotero/zotero.dtd
+++ b/chrome/locale/ca-AD/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/cs-CZ/zotero/zotero.dtd b/chrome/locale/cs-CZ/zotero/zotero.dtd
index e699e040b..3a2ad775b 100644
--- a/chrome/locale/cs-CZ/zotero/zotero.dtd
+++ b/chrome/locale/cs-CZ/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/da-DK/zotero/zotero.dtd b/chrome/locale/da-DK/zotero/zotero.dtd
index 6b5aa0c4f..1491b8050 100644
--- a/chrome/locale/da-DK/zotero/zotero.dtd
+++ b/chrome/locale/da-DK/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/de-AT/zotero/zotero.dtd b/chrome/locale/de-AT/zotero/zotero.dtd
index 74041d3e0..42f7e76ca 100644
--- a/chrome/locale/de-AT/zotero/zotero.dtd
+++ b/chrome/locale/de-AT/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/de-CH/zotero/zotero.dtd b/chrome/locale/de-CH/zotero/zotero.dtd
index 74041d3e0..42f7e76ca 100644
--- a/chrome/locale/de-CH/zotero/zotero.dtd
+++ b/chrome/locale/de-CH/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/de-DE/zotero/zotero.dtd b/chrome/locale/de-DE/zotero/zotero.dtd
index 52659577b..f63a92c0b 100644
--- a/chrome/locale/de-DE/zotero/zotero.dtd
+++ b/chrome/locale/de-DE/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/el-GR/zotero/zotero.dtd b/chrome/locale/el-GR/zotero/zotero.dtd
index 8f12c3519..052994580 100644
--- a/chrome/locale/el-GR/zotero/zotero.dtd
+++ b/chrome/locale/el-GR/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/es-ES/zotero/zotero.dtd b/chrome/locale/es-ES/zotero/zotero.dtd
index 1ace5f878..9434a3bda 100644
--- a/chrome/locale/es-ES/zotero/zotero.dtd
+++ b/chrome/locale/es-ES/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/et-EE/zotero/zotero.dtd b/chrome/locale/et-EE/zotero/zotero.dtd
index 8f12c3519..052994580 100644
--- a/chrome/locale/et-EE/zotero/zotero.dtd
+++ b/chrome/locale/et-EE/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/fi-FI/zotero/zotero.dtd b/chrome/locale/fi-FI/zotero/zotero.dtd
index 8f12c3519..052994580 100644
--- a/chrome/locale/fi-FI/zotero/zotero.dtd
+++ b/chrome/locale/fi-FI/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/fr-FR/zotero/zotero.dtd b/chrome/locale/fr-FR/zotero/zotero.dtd
index 570520064..9fb5d9549 100644
--- a/chrome/locale/fr-FR/zotero/zotero.dtd
+++ b/chrome/locale/fr-FR/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/gl-ES/zotero/zotero.dtd b/chrome/locale/gl-ES/zotero/zotero.dtd
index 95ee6f021..8b4158b5a 100644
--- a/chrome/locale/gl-ES/zotero/zotero.dtd
+++ b/chrome/locale/gl-ES/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/he-IL/zotero/zotero.dtd b/chrome/locale/he-IL/zotero/zotero.dtd
index f74a68288..eb8acc8fe 100644
--- a/chrome/locale/he-IL/zotero/zotero.dtd
+++ b/chrome/locale/he-IL/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/hr-HR/zotero/zotero.dtd b/chrome/locale/hr-HR/zotero/zotero.dtd
index 8f12c3519..052994580 100644
--- a/chrome/locale/hr-HR/zotero/zotero.dtd
+++ b/chrome/locale/hr-HR/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/hu-HU/zotero/zotero.dtd b/chrome/locale/hu-HU/zotero/zotero.dtd
index 328762f09..fdd1bfcab 100644
--- a/chrome/locale/hu-HU/zotero/zotero.dtd
+++ b/chrome/locale/hu-HU/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/is-IS/zotero/zotero.dtd b/chrome/locale/is-IS/zotero/zotero.dtd
index 23f88210b..e8b65fbc8 100644
--- a/chrome/locale/is-IS/zotero/zotero.dtd
+++ b/chrome/locale/is-IS/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/it-IT/zotero/zotero.dtd b/chrome/locale/it-IT/zotero/zotero.dtd
index 4ac522dba..4b428ae5b 100644
--- a/chrome/locale/it-IT/zotero/zotero.dtd
+++ b/chrome/locale/it-IT/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/ja-JP/zotero/zotero.dtd b/chrome/locale/ja-JP/zotero/zotero.dtd
index 74cfb60b5..cbb66c24d 100644
--- a/chrome/locale/ja-JP/zotero/zotero.dtd
+++ b/chrome/locale/ja-JP/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/ko-KR/zotero/zotero.dtd b/chrome/locale/ko-KR/zotero/zotero.dtd
index 09ab3db78..38236adf4 100644
--- a/chrome/locale/ko-KR/zotero/zotero.dtd
+++ b/chrome/locale/ko-KR/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/mn-MN/zotero/zotero.dtd b/chrome/locale/mn-MN/zotero/zotero.dtd
index 58e6ce25b..15ec5f097 100644
--- a/chrome/locale/mn-MN/zotero/zotero.dtd
+++ b/chrome/locale/mn-MN/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/nb-NO/zotero/zotero.dtd b/chrome/locale/nb-NO/zotero/zotero.dtd
index 7df43663d..af9b2f1f8 100644
--- a/chrome/locale/nb-NO/zotero/zotero.dtd
+++ b/chrome/locale/nb-NO/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/nl-NL/zotero/zotero.dtd b/chrome/locale/nl-NL/zotero/zotero.dtd
index c47829b50..2ce8f1544 100644
--- a/chrome/locale/nl-NL/zotero/zotero.dtd
+++ b/chrome/locale/nl-NL/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/pl-PL/zotero/zotero.dtd b/chrome/locale/pl-PL/zotero/zotero.dtd
index 07ebd452d..d7daeee18 100644
--- a/chrome/locale/pl-PL/zotero/zotero.dtd
+++ b/chrome/locale/pl-PL/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/pt-BR/zotero/zotero.dtd b/chrome/locale/pt-BR/zotero/zotero.dtd
index 5d23b4785..2e34b99fb 100644
--- a/chrome/locale/pt-BR/zotero/zotero.dtd
+++ b/chrome/locale/pt-BR/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/pt-PT/zotero/zotero.dtd b/chrome/locale/pt-PT/zotero/zotero.dtd
index b471fbbe9..ae4007d82 100644
--- a/chrome/locale/pt-PT/zotero/zotero.dtd
+++ b/chrome/locale/pt-PT/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/ro-RO/zotero/zotero.dtd b/chrome/locale/ro-RO/zotero/zotero.dtd
index ce0314d41..0df68210b 100644
--- a/chrome/locale/ro-RO/zotero/zotero.dtd
+++ b/chrome/locale/ro-RO/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/ru-RU/zotero/zotero.dtd b/chrome/locale/ru-RU/zotero/zotero.dtd
index 7f238a958..e1942c0e4 100644
--- a/chrome/locale/ru-RU/zotero/zotero.dtd
+++ b/chrome/locale/ru-RU/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/sk-SK/zotero/zotero.dtd b/chrome/locale/sk-SK/zotero/zotero.dtd
index 2187ec1c4..9f309253a 100644
--- a/chrome/locale/sk-SK/zotero/zotero.dtd
+++ b/chrome/locale/sk-SK/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/sl-SI/zotero/zotero.dtd b/chrome/locale/sl-SI/zotero/zotero.dtd
index 4c24ac3e0..842d34ace 100644
--- a/chrome/locale/sl-SI/zotero/zotero.dtd
+++ b/chrome/locale/sl-SI/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/sr-RS/zotero/zotero.dtd b/chrome/locale/sr-RS/zotero/zotero.dtd
index fd027eddf..11df47473 100644
--- a/chrome/locale/sr-RS/zotero/zotero.dtd
+++ b/chrome/locale/sr-RS/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/sv-SE/zotero/zotero.dtd b/chrome/locale/sv-SE/zotero/zotero.dtd
index ce11c6a87..24ea46646 100644
--- a/chrome/locale/sv-SE/zotero/zotero.dtd
+++ b/chrome/locale/sv-SE/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/th-TH/zotero/zotero.dtd b/chrome/locale/th-TH/zotero/zotero.dtd
index 7a78c14e7..fb38ed12c 100644
--- a/chrome/locale/th-TH/zotero/zotero.dtd
+++ b/chrome/locale/th-TH/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/tr-TR/zotero/zotero.dtd b/chrome/locale/tr-TR/zotero/zotero.dtd
index fd226e611..b865c240d 100644
--- a/chrome/locale/tr-TR/zotero/zotero.dtd
+++ b/chrome/locale/tr-TR/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/vi-VN/zotero/zotero.dtd b/chrome/locale/vi-VN/zotero/zotero.dtd
index 92022ee5b..47d10347a 100644
--- a/chrome/locale/vi-VN/zotero/zotero.dtd
+++ b/chrome/locale/vi-VN/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/zh-CN/zotero/zotero.dtd b/chrome/locale/zh-CN/zotero/zotero.dtd
index 48fe711b7..3c8c38507 100644
--- a/chrome/locale/zh-CN/zotero/zotero.dtd
+++ b/chrome/locale/zh-CN/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">
 
diff --git a/chrome/locale/zh-TW/zotero/zotero.dtd b/chrome/locale/zh-TW/zotero/zotero.dtd
index c909043da..7fdb07569 100644
--- a/chrome/locale/zh-TW/zotero/zotero.dtd
+++ b/chrome/locale/zh-TW/zotero/zotero.dtd
@@ -161,7 +161,7 @@
 
 <!ENTITY zotero.proxy.recognized.title "Proxy Recognized">
 <!ENTITY zotero.proxy.recognized.warning "Only add proxies linked from your library, school, or corporate website">
-
+<!ENTITY zotero.proxy.recognized.warning.secondary "Adding other proxies allows malicious sites to masquerade as sites you trust.">
 <!ENTITY zotero.proxy.recognized.disable.label "Do not automatically redirect requests through previously recognized proxies">
 <!ENTITY zotero.proxy.recognized.ignore.label "Ignore">