diff --git a/devtools/client/locales/en-US/netmonitor.properties b/devtools/client/locales/en-US/netmonitor.properties
index 344a94461203..5689082aaf31 100644
--- a/devtools/client/locales/en-US/netmonitor.properties
+++ b/devtools/client/locales/en-US/netmonitor.properties
@@ -265,9 +265,13 @@ networkMenu.sizeCached=cached
 # by a service worker.
 networkMenu.sizeServiceWorker=service worker
 
-# LOCALIZATION NOTE (networkMenu.blocked): This is a generic message for a
+# LOCALIZATION NOTE (networkMenu.blocked2): This is a generic message for a
 # URL that has been blocked for an unknown reason
-networkMenu.blocked=blocked
+networkMenu.blocked2=Blocked
+
+# LOCALIZATION NOTE (networkMenu.blockedTooltip): This is a the text displayed
+# as a tooltip for the blocked icon in the request list
+networkMenu.blockedTooltip=Blocked
 
 # LOCALIZATION NOTE (networkMenu.totalMS2): This is the label displayed
 # in the network menu specifying the time for a request to finish (in milliseconds).
diff --git a/devtools/client/netmonitor/src/components/RequestListColumnTransferredSize.js b/devtools/client/netmonitor/src/components/RequestListColumnTransferredSize.js
index bcda24f5d011..cbbd199d380f 100644
--- a/devtools/client/netmonitor/src/components/RequestListColumnTransferredSize.js
+++ b/devtools/client/netmonitor/src/components/RequestListColumnTransferredSize.js
@@ -52,7 +52,7 @@ class RequestListColumnTransferredSize extends Component {
     if (blockedReason) {
       text =
         BLOCKED_REASON_MESSAGES[blockedReason] ||
-        L10N.getStr("networkMenu.blocked");
+        L10N.getStr("networkMenu.blocked2");
     } else if (fromCache || status === "304") {
       text = SIZE_CACHED;
     } else if (fromServiceWorker) {
diff --git a/devtools/client/netmonitor/src/components/StatusCode.js b/devtools/client/netmonitor/src/components/StatusCode.js
index 44b858e4f3cf..a1e55a90eaff 100644
--- a/devtools/client/netmonitor/src/components/StatusCode.js
+++ b/devtools/client/netmonitor/src/components/StatusCode.js
@@ -68,11 +68,11 @@ class StatusCode extends Component {
         {
           className:
             "requests-list-status-code status-code status-code-blocked",
-          title: L10N.getStr("networkMenu.blocked"),
+          title: L10N.getStr("networkMenu.blockedTooltip"),
         },
         img({
           src: BLOCKED_ICON,
-          alt: L10N.getStr("networkMenu.blocked"),
+          alt: L10N.getStr("networkMenu.blockedTooltip"),
         })
       );
     }