diff --git a/mail/base/test/unit/resources/viewWrapperTestUtils.js b/mail/base/test/unit/resources/viewWrapperTestUtils.js
index 090089bbf3..155630fe90 100644
--- a/mail/base/test/unit/resources/viewWrapperTestUtils.js
+++ b/mail/base/test/unit/resources/viewWrapperTestUtils.js
@@ -18,6 +18,10 @@ var { MessageInjection } = ChromeUtils.import(
   "resource://testing-common/mailnews/MessageInjection.jsm"
 );
 
+var { dump_view_state } = ChromeUtils.import(
+  "resource://testing-common/mozmill/FolderDisplayHelpers.jsm"
+);
+
 var gMessageGenerator;
 var gMessageScenarioFactory;
 var messageInjection;
@@ -304,85 +308,6 @@ function dump_message_header(aMsgHdr) {
   );
 }
 
-var WHITESPACE = "                                              ";
-var MSG_VIEW_FLAG_DUMMY = 0x20000000;
-function dump_view_contents(aViewWrapper) {
-  let dbView = aViewWrapper.dbView;
-  let treeView = aViewWrapper.dbView.QueryInterface(Ci.nsITreeView);
-  let rowCount = treeView.rowCount;
-
-  dump("********* Current View Contents\n");
-  for (let iViewIndex = 0; iViewIndex < rowCount; iViewIndex++) {
-    let level = treeView.getLevel(iViewIndex);
-    let flags = dbView.getFlagsAt(iViewIndex);
-    let msgHdr = dbView.getMsgHdrAt(iViewIndex);
-
-    let s = WHITESPACE.substr(0, level * 2);
-    if (treeView.isContainer(iViewIndex)) {
-      s += treeView.isContainerOpen(iViewIndex) ? "- " : "+ ";
-    } else {
-      s += ". ";
-    }
-    // s += treeView.getCellText(iViewIndex, )
-    if (flags & MSG_VIEW_FLAG_DUMMY) {
-      s += "dummy: ";
-    }
-    s += dbView.cellTextForColumn(iViewIndex, "subject");
-    s += " [" + msgHdr.folder.prettyName + "," + msgHdr.messageKey + "]";
-
-    dump(s + "\n");
-  }
-  dump("********* end view contents\n");
-}
-
-function _lookupValueNameInInterface(aValue, aInterface) {
-  for (let key in aInterface) {
-    let value = aInterface[key];
-    if (value == aValue) {
-      return key;
-    }
-  }
-  return "unknown: " + aValue;
-}
-
-function dump_view_state(aViewWrapper, aDoNotDumpContents) {
-  if (aViewWrapper.dbView == null) {
-    dump("no nsIMsgDBView instance!\n");
-    return;
-  }
-  if (!aDoNotDumpContents) {
-    dump_view_contents(aViewWrapper);
-  }
-  dump("View: " + aViewWrapper.dbView + "\n");
-  dump(
-    "  View Type: " +
-      _lookupValueNameInInterface(
-        aViewWrapper.dbView.viewType,
-        Ci.nsMsgViewType
-      ) +
-      "   " +
-      "View Flags: " +
-      aViewWrapper.dbView.viewFlags +
-      "\n"
-  );
-  dump(
-    "  Sort Type: " +
-      _lookupValueNameInInterface(
-        aViewWrapper.dbView.sortType,
-        Ci.nsMsgViewSortType
-      ) +
-      "   " +
-      "Sort Order: " +
-      _lookupValueNameInInterface(
-        aViewWrapper.dbView.sortOrder,
-        Ci.nsMsgViewSortOrder
-      ) +
-      "\n"
-  );
-
-  dump(aViewWrapper.search.prettyString());
-}
-
 /**
  * Verify that the messages in the provided SyntheticMessageSets are the only
  *  visible messages in the provided DBViewWrapper. If dummy headers are present
@@ -528,6 +453,7 @@ function verify_view_row_at_index_is_container(aViewWrapper, ...aArgs) {
  * @param ... View indices to check.
  */
 function verify_view_row_at_index_is_dummy(aViewWrapper, ...aArgs) {
+  const MSG_VIEW_FLAG_DUMMY = 0x20000000;
   for (let viewIndex of aArgs) {
     let flags = aViewWrapper.dbView.getFlagsAt(viewIndex);
     if (!(flags & MSG_VIEW_FLAG_DUMMY)) {
diff --git a/mail/test/browser/shared-modules/FolderDisplayHelpers.jsm b/mail/test/browser/shared-modules/FolderDisplayHelpers.jsm
index 32364c8925..70c76edd17 100644
--- a/mail/test/browser/shared-modules/FolderDisplayHelpers.jsm
+++ b/mail/test/browser/shared-modules/FolderDisplayHelpers.jsm
@@ -72,6 +72,8 @@ const EXPORTED_SYMBOLS = [
   "delete_messages",
   "delete_via_popup",
   "display_message_in_folder_tab",
+  "dump_view_contents",
+  "dump_view_state",
   "empty_folder",
   "enter_folder",
   "expand_all_threads",
@@ -3317,7 +3319,7 @@ function throw_and_dump_view_state(aMessage, aController) {
   }
 
   dump("******** " + aMessage + "\n");
-  testHelperModule.dump_view_state(aController.folderDisplay.view);
+  dump_view_state(aController.folderDisplay.view);
   throw new Error(aMessage);
 }
 
@@ -3428,3 +3430,81 @@ function load_via_src_path(aPath, aScope) {
   let uri = Services.io.newFileURI(file).spec;
   Services.scriptloader.loadSubScript(uri, aScope);
 }
+
+function dump_view_state(aViewWrapper, aDoNotDumpContents) {
+  if (aViewWrapper.dbView == null) {
+    dump("no nsIMsgDBView instance!\n");
+    return;
+  }
+  if (!aDoNotDumpContents) {
+    dump_view_contents(aViewWrapper);
+  }
+  dump("View: " + aViewWrapper.dbView + "\n");
+  dump(
+    "  View Type: " +
+      _lookupValueNameInInterface(
+        aViewWrapper.dbView.viewType,
+        Ci.nsMsgViewType
+      ) +
+      "   " +
+      "View Flags: " +
+      aViewWrapper.dbView.viewFlags +
+      "\n"
+  );
+  dump(
+    "  Sort Type: " +
+      _lookupValueNameInInterface(
+        aViewWrapper.dbView.sortType,
+        Ci.nsMsgViewSortType
+      ) +
+      "   " +
+      "Sort Order: " +
+      _lookupValueNameInInterface(
+        aViewWrapper.dbView.sortOrder,
+        Ci.nsMsgViewSortOrder
+      ) +
+      "\n"
+  );
+  dump(aViewWrapper.search.prettyString());
+}
+
+var WHITESPACE = "                                              ";
+var MSG_VIEW_FLAG_DUMMY = 0x20000000;
+function dump_view_contents(aViewWrapper) {
+  let dbView = aViewWrapper.dbView;
+  let treeView = aViewWrapper.dbView.QueryInterface(Ci.nsITreeView);
+  let rowCount = treeView.rowCount;
+
+  dump("********* Current View Contents\n");
+  for (let iViewIndex = 0; iViewIndex < rowCount; iViewIndex++) {
+    let level = treeView.getLevel(iViewIndex);
+    let flags = dbView.getFlagsAt(iViewIndex);
+    let msgHdr = dbView.getMsgHdrAt(iViewIndex);
+
+    let s = WHITESPACE.substr(0, level * 2);
+    if (treeView.isContainer(iViewIndex)) {
+      s += treeView.isContainerOpen(iViewIndex) ? "- " : "+ ";
+    } else {
+      s += ". ";
+    }
+    // s += treeView.getCellText(iViewIndex, )
+    if (flags & MSG_VIEW_FLAG_DUMMY) {
+      s += "dummy: ";
+    }
+    s += dbView.cellTextForColumn(iViewIndex, "subject");
+    s += " [" + msgHdr.folder.prettyName + "," + msgHdr.messageKey + "]";
+
+    dump(s + "\n");
+  }
+  dump("********* end view contents\n");
+}
+
+function _lookupValueNameInInterface(aValue, aInterface) {
+  for (let key in aInterface) {
+    let value = aInterface[key];
+    if (value == aValue) {
+      return key;
+    }
+  }
+  return "unknown: " + aValue;
+}
diff --git a/mailnews/base/test/unit/test_nsMsgDBView.js b/mailnews/base/test/unit/test_nsMsgDBView.js
index 27c12c82ad..47efbff99d 100644
--- a/mailnews/base/test/unit/test_nsMsgDBView.js
+++ b/mailnews/base/test/unit/test_nsMsgDBView.js
@@ -29,6 +29,9 @@ var { MessageInjection } = ChromeUtils.import(
 var { PromiseUtils } = ChromeUtils.importESModule(
   "resource://gre/modules/PromiseUtils.sys.mjs"
 );
+var { dump_view_contents } = ChromeUtils.import(
+  "resource://testing-common/mozmill/FolderDisplayHelpers.jsm"
+);
 
 // Items used to add messages to the folder
 var gMessageGenerator = new MessageGenerator();
@@ -103,31 +106,6 @@ async function make_and_add_message(aMessageArgs) {
   return [synMsg, msgSet];
 }
 
-var WHITESPACE = "                                              ";
-/**
- * Print out the current db view as best we can.
- */
-function dump_view_contents() {
-  dump("********* Current View State\n");
-  for (let iViewIndex = 0; iViewIndex < gTreeView.rowCount; iViewIndex++) {
-    let level = gTreeView.getLevel(iViewIndex);
-    let flags = gDBView.getFlagsAt(iViewIndex);
-
-    let s = WHITESPACE.substr(0, level * 2);
-    if (gTreeView.isContainer(iViewIndex)) {
-      s += gTreeView.isContainerOpen(iViewIndex) ? "- " : "+ ";
-    } else {
-      s += ". ";
-    }
-    if (flags & MSG_VIEW_FLAG_DUMMY) {
-      s += "dummy: ";
-    }
-    s += gDBView.cellTextForColumn(iViewIndex, "subject");
-    dump(s + "\n");
-  }
-  dump("********* end view state\n");
-}
-
 function view_throw(why) {
   dump_view_contents();
   do_throw(why);
diff --git a/mailnews/base/test/unit/test_viewSortByAddresses.js b/mailnews/base/test/unit/test_viewSortByAddresses.js
index 0a874a5a06..3cddfd2cba 100644
--- a/mailnews/base/test/unit/test_viewSortByAddresses.js
+++ b/mailnews/base/test/unit/test_viewSortByAddresses.js
@@ -19,6 +19,10 @@ var { MessageGenerator, SyntheticMessageSet } = ChromeUtils.import(
 var { MessageInjection } = ChromeUtils.import(
   "resource://testing-common/mailnews/MessageInjection.jsm"
 );
+var { dump_view_contents } = ChromeUtils.import(
+  "resource://testing-common/mozmill/FolderDisplayHelpers.jsm"
+);
+
 var gMessageGenerator = new MessageGenerator();
 var messageInjection = new MessageInjection({ mode: "local" });
 
@@ -105,36 +109,6 @@ add_task(function test_view_sort_by_addresses() {
   }
 });
 
-var WHITESPACE = "                                              ";
-/**
- * Print out the current db view as best we can.
- */
-function dump_view_contents() {
-  dump("********* Current View State\n");
-  for (let iViewIndex = 0; iViewIndex < gTreeView.rowCount; iViewIndex++) {
-    let level = gTreeView.getLevel(iViewIndex);
-    let flags = gDBView.getFlagsAt(iViewIndex);
-
-    let s = WHITESPACE.substr(0, level * 2);
-    if (gTreeView.isContainer(iViewIndex)) {
-      s += gTreeView.isContainerOpen(iViewIndex) ? "- " : "+ ";
-    } else {
-      s += ". ";
-    }
-    let MSG_VIEW_FLAG_DUMMY = 0x20000000;
-    if (flags & MSG_VIEW_FLAG_DUMMY) {
-      s += "dummy: ";
-    }
-    s +=
-      gDBView.cellTextForColumn(iViewIndex, "subjectCol") +
-      " " +
-      gDBView.cellTextForColumn(iViewIndex, "senderCol");
-
-    dump(s + "\n");
-  }
-  dump("********* end view state\n");
-}
-
 function view_throw(why) {
   dump_view_contents();
   do_throw(why);