foo.diff

diff --git a/devtools/client/locales/en-US/debugger.dtd b/devtools/client/locales/en-US/debugger.dtd
--- a/devtools/client/locales/en-US/debugger.dtd
+++ b/devtools/client/locales/en-US/debugger.dtd
@@ -162,16 +162,23 @@
 <!ENTITY debuggerUI.seMenuBreak.key "B">
 
 <!-- LOCALIZATION NOTE (debuggerUI.seMenuCondBreak): This is the text that
   -  appears in the source editor context menu for adding a conditional
   -  breakpoint. -->
 <!ENTITY debuggerUI.seMenuCondBreak     "Add Conditional Breakpoint">
 <!ENTITY debuggerUI.seMenuCondBreak.key "B">
 
+<!-- LOCALIZATION NOTE (debuggerUI.seMenuCondBreak): This is the text that
+  -  appears in the source editor context menu for editing a conditional
+  -  breakpoint. -->
+<!ENTITY debuggerUI.seEditMenuCondBreak     "Edit Conditional Breakpoint">
+<!ENTITY debuggerUI.seEditMenuCondBreak.key "B">
+
+
 <!-- LOCALIZATION NOTE (debuggerUI.tabs.*): This is the text that
   -  appears in the debugger's side pane tabs. -->
 <!ENTITY debuggerUI.tabs.workers        "Workers">
 <!ENTITY debuggerUI.tabs.sources        "Sources">
 <!ENTITY debuggerUI.tabs.traces         "Traces">
 <!ENTITY debuggerUI.tabs.callstack      "Call Stack">
 <!ENTITY debuggerUI.tabs.variables      "Variables">
 <!ENTITY debuggerUI.tabs.events         "Events">
diff --git a/devtools/client/sourceeditor/editor.js b/devtools/client/sourceeditor/editor.js
--- a/devtools/client/sourceeditor/editor.js
+++ b/devtools/client/sourceeditor/editor.js
@@ -296,16 +296,26 @@ Editor.prototype = {
 
       cm = win.CodeMirror(win.document.body, this.config);
       cm.getWrapperElement().addEventListener("contextmenu", (ev) => {
         ev.preventDefault();
         if (!this.config.contextMenu) return;
         let popup = this.config.contextMenu;
         if (typeof popup == "string")
           popup = el.ownerDocument.getElementById(this.config.contextMenu);
+
+        // this might not be the best way or place to access the menu item
+        var conditionalBreakpointMenuItem = popup.querySelector("#se-dbg-cMenu-addConditionalBreakpoint");
+
+        if (conditionalBreakpointMenuItem) {
+          // => change label...
+          // currently doesn't access Entity?
+          conditionalBreakpointMenuItem.label = "&debuggerUI.seEditMenuCondBreak;"
+        }
+
         popup.openPopupAtScreen(ev.screenX, ev.screenY, true);
       }, false);
 
       // Intercept the find and find again keystroke on CodeMirror, to avoid
       // the browser's search
 
       let findKey = L10N.GetStringFromName("find.commandkey");
       let findAgainKey = L10N.GetStringFromName("findAgain.commandkey");