diff --git a/themes/classic/global/netError.css b/themes/classic/global/netError.css
index bf05d38d7683..e85842b68379 100644
--- a/themes/classic/global/netError.css
+++ b/themes/classic/global/netError.css
@@ -64,6 +64,7 @@ body[dir="rtl"] #errorPageContainer {
 }
 
 #errorShortDesc > p {
+  overflow: auto;
   border-bottom: 1px solid ThreeDLightShadow;
   padding-bottom: 1em;
   font-size: 130%;
diff --git a/themes/modern/global/netError.css b/themes/modern/global/netError.css
index a213c2fd5eb9..3a81735d3013 100644
--- a/themes/modern/global/netError.css
+++ b/themes/modern/global/netError.css
@@ -64,6 +64,7 @@ body[dir="rtl"] #errorPageContainer {
 }
 
 #errorShortDesc > p {
+  overflow: auto;
   border-bottom: 1px solid ThreeDShadow;
   padding-bottom: 1em;
   font-size: 130%;
diff --git a/toolkit/themes/pinstripe/global/netError.css b/toolkit/themes/pinstripe/global/netError.css
index 9b896f0fa8ff..2e74b83bd383 100644
--- a/toolkit/themes/pinstripe/global/netError.css
+++ b/toolkit/themes/pinstripe/global/netError.css
@@ -64,6 +64,7 @@ body[dir="rtl"] #errorPageContainer {
 }
 
 #errorShortDesc > p {
+  overflow: auto;
   border-bottom: 1px solid ThreeDLightShadow;
   padding-bottom: 1em;
   font-size: 130%;
diff --git a/toolkit/themes/winstripe/global/netError.css b/toolkit/themes/winstripe/global/netError.css
index 9b896f0fa8ff..2e74b83bd383 100644
--- a/toolkit/themes/winstripe/global/netError.css
+++ b/toolkit/themes/winstripe/global/netError.css
@@ -64,6 +64,7 @@ body[dir="rtl"] #errorPageContainer {
 }
 
 #errorShortDesc > p {
+  overflow: auto;
   border-bottom: 1px solid ThreeDLightShadow;
   padding-bottom: 1em;
   font-size: 130%;