--- a/browser/modules/test/browser/browser_UsageTelemetry_urlbar.js
+++ b/browser/modules/test/browser/browser_UsageTelemetry_urlbar.js
@@ -95,19 +95,19 @@ add_task(function* setup() {
     Services.telemetry.setEventRecordingEnabled("navigation", false);
   });
 });
 
 add_task(function* test_simpleQuery() {
   // Let's reset the counts.
   Services.telemetry.clearScalars();
   Services.telemetry.clearEvents();
-  // let resultIndexHist = Services.telemetry.getHistogramById("FX_URLBAR_SELECTED_RESULT_INDEX");
+  //let resultIndexHist = Services.telemetry.getHistogramById("FX_URLBAR_SELECTED_RESULT_INDEX");
   let resultTypeHist = Services.telemetry.getHistogramById("FX_URLBAR_SELECTED_RESULT_TYPE");
-  // resultIndexHist.clear();
+  //resultIndexHist.clear();
   resultTypeHist.clear();
 
   let search_hist = getSearchCountsHistogram();
 
   let tab = yield BrowserTestUtils.openNewForegroundTab(gBrowser, "about:blank");
 
   info("Simulate entering a simple search.");
   let p = BrowserTestUtils.browserLoaded(tab.linkedBrowser);
@@ -125,34 +125,34 @@ add_task(function* test_simpleQuery() {
   checkKeyedHistogram(search_hist, "other-MozSearch.urlbar", 1);
 
   // Also check events.
   let events = Services.telemetry.snapshotBuiltinEvents(Ci.nsITelemetry.DATASET_RELEASE_CHANNEL_OPTIN, false);
   events = (events.default || []).filter(e => e[1] == "navigation" && e[2] == "search");
   checkEvents(events, [["navigation", "search", "urlbar", "enter", {engine: "other-MozSearch"}]]);
 
   // Check the histograms as well.
-  // let resultIndexes = resultIndexHist.snapshot();
-  // checkHistogramResults(resultIndexes, 0, "FX_URLBAR_SELECTED_RESULT_INDEX");
+  //let resultIndexes = resultIndexHist.snapshot();
+  //checkHistogramResults(resultIndexes, 0, "FX_URLBAR_SELECTED_RESULT_INDEX");
 
   let resultTypes = resultTypeHist.snapshot();
   checkHistogramResults(resultTypes,
     URLBAR_SELECTED_RESULT_TYPES.searchengine,
     "FX_URLBAR_SELECTED_RESULT_TYPE");
 
   yield BrowserTestUtils.removeTab(tab);
 });
 
 add_task(function* test_searchAlias() {
   // Let's reset the counts.
   Services.telemetry.clearScalars();
   Services.telemetry.clearEvents();
-  // let resultIndexHist = Services.telemetry.getHistogramById("FX_URLBAR_SELECTED_RESULT_INDEX");
+  //let resultIndexHist = Services.telemetry.getHistogramById("FX_URLBAR_SELECTED_RESULT_INDEX");
   let resultTypeHist = Services.telemetry.getHistogramById("FX_URLBAR_SELECTED_RESULT_TYPE");
-  // resultIndexHist.clear();
+  //resultIndexHist.clear();
   resultTypeHist.clear();
 
   let search_hist = getSearchCountsHistogram();
 
   let tab = yield BrowserTestUtils.openNewForegroundTab(gBrowser, "about:blank");
 
   info("Search using a search alias.");
   let p = BrowserTestUtils.browserLoaded(tab.linkedBrowser);
@@ -170,34 +170,34 @@ add_task(function* test_searchAlias() {
   checkKeyedHistogram(search_hist, "other-MozSearch.urlbar", 1);
 
   // Also check events.
   let events = Services.telemetry.snapshotBuiltinEvents(Ci.nsITelemetry.DATASET_RELEASE_CHANNEL_OPTIN, false);
   events = (events.default || []).filter(e => e[1] == "navigation" && e[2] == "search");
   checkEvents(events, [["navigation", "search", "urlbar", "alias", {engine: "other-MozSearch"}]]);
 
   // Check the histograms as well.
-  // let resultIndexes = resultIndexHist.snapshot();
-  // checkHistogramResults(resultIndexes, 0, "FX_URLBAR_SELECTED_RESULT_INDEX");
+  //let resultIndexes = resultIndexHist.snapshot();
+  //checkHistogramResults(resultIndexes, 0, "FX_URLBAR_SELECTED_RESULT_INDEX");
 
   let resultTypes = resultTypeHist.snapshot();
   checkHistogramResults(resultTypes,
     URLBAR_SELECTED_RESULT_TYPES.searchengine,
     "FX_URLBAR_SELECTED_RESULT_TYPE");
 
   yield BrowserTestUtils.removeTab(tab);
 });
 
 add_task(function* test_oneOff() {
   // Let's reset the counts.
   Services.telemetry.clearScalars();
   Services.telemetry.clearEvents();
-  // let resultIndexHist = Services.telemetry.getHistogramById("FX_URLBAR_SELECTED_RESULT_INDEX");
+  //let resultIndexHist = Services.telemetry.getHistogramById("FX_URLBAR_SELECTED_RESULT_INDEX");
   let resultTypeHist = Services.telemetry.getHistogramById("FX_URLBAR_SELECTED_RESULT_TYPE");
-  // resultIndexHist.clear();
+  //resultIndexHist.clear();
   resultTypeHist.clear();
 
   let search_hist = getSearchCountsHistogram();
 
   let tab = yield BrowserTestUtils.openNewForegroundTab(gBrowser, "about:blank");
 
   info("Perform a one-off search using the first engine.");
   let p = BrowserTestUtils.browserLoaded(tab.linkedBrowser);
@@ -218,34 +218,34 @@ add_task(function* test_oneOff() {
   checkKeyedHistogram(search_hist, "other-MozSearch.urlbar", 1);
 
   // Also check events.
   let events = Services.telemetry.snapshotBuiltinEvents(Ci.nsITelemetry.DATASET_RELEASE_CHANNEL_OPTIN, false);
   events = (events.default || []).filter(e => e[1] == "navigation" && e[2] == "search");
   checkEvents(events, [["navigation", "search", "urlbar", "oneoff", {engine: "other-MozSearch"}]]);
 
   // Check the histograms as well.
-  // let resultIndexes = resultIndexHist.snapshot();
-  // checkHistogramResults(resultIndexes, 0, "FX_URLBAR_SELECTED_RESULT_INDEX");
+  //let resultIndexes = resultIndexHist.snapshot();
+  //checkHistogramResults(resultIndexes, 0, "FX_URLBAR_SELECTED_RESULT_INDEX");
 
   let resultTypes = resultTypeHist.snapshot();
   checkHistogramResults(resultTypes,
     URLBAR_SELECTED_RESULT_TYPES.searchengine,
     "FX_URLBAR_SELECTED_RESULT_TYPE");
 
   yield BrowserTestUtils.removeTab(tab);
 });
 
 add_task(function* test_suggestion() {
   // Let's reset the counts.
   Services.telemetry.clearScalars();
   Services.telemetry.clearEvents();
-  // let resultIndexHist = Services.telemetry.getHistogramById("FX_URLBAR_SELECTED_RESULT_INDEX");
+  //let resultIndexHist = Services.telemetry.getHistogramById("FX_URLBAR_SELECTED_RESULT_INDEX");
   let resultTypeHist = Services.telemetry.getHistogramById("FX_URLBAR_SELECTED_RESULT_TYPE");
-  // resultIndexHist.clear();
+  //resultIndexHist.clear();
   resultTypeHist.clear();
 
   let search_hist = getSearchCountsHistogram();
 
   // Create an engine to generate search suggestions and add it as default
   // for this test.
   const url = getRootDirectory(gTestPath) + "usageTelemetrySearchSuggestions.xml";
   let suggestionEngine = yield new Promise((resolve, reject) => {
@@ -278,18 +278,18 @@ add_task(function* test_suggestion() {
   checkKeyedHistogram(search_hist, searchEngineId + ".urlbar", 1);
 
   // Also check events.
   let events = Services.telemetry.snapshotBuiltinEvents(Ci.nsITelemetry.DATASET_RELEASE_CHANNEL_OPTIN, false);
   events = (events.default || []).filter(e => e[1] == "navigation" && e[2] == "search");
   checkEvents(events, [["navigation", "search", "urlbar", "suggestion", {engine: searchEngineId}]]);
 
   // Check the histograms as well.
-  // let resultIndexes = resultIndexHist.snapshot();
-  // checkHistogramResults(resultIndexes, 3, "FX_URLBAR_SELECTED_RESULT_INDEX");
+  //let resultIndexes = resultIndexHist.snapshot();
+  //checkHistogramResults(resultIndexes, 3, "FX_URLBAR_SELECTED_RESULT_INDEX");
 
   let resultTypes = resultTypeHist.snapshot();
   checkHistogramResults(resultTypes,
     URLBAR_SELECTED_RESULT_TYPES.searchsuggestion,
     "FX_URLBAR_SELECTED_RESULT_TYPE");
 
   Services.search.currentEngine = previousEngine;
   Services.search.removeEngine(suggestionEngine);