diff --git a/toolkit/components/places/AsyncFaviconHelpers.cpp b/toolkit/components/places/AsyncFaviconHelpers.cpp
index e65a8f48d0..b76d419b92 100644
--- a/toolkit/components/places/AsyncFaviconHelpers.cpp
+++ b/toolkit/components/places/AsyncFaviconHelpers.cpp
@@ -674,6 +674,7 @@ AsyncFetchAndSetIconForPage::OnStopRequest(nsIRequest* aRequest,
 
   mIcon.expiration = GetExpirationTimeFromChannel(channel);
 
+#if(0)
   // Telemetry probes to measure the favicon file sizes for each different file type.
   // This allow us to measure common file sizes while also observing each type popularity.
   if (mIcon.mimeType.EqualsLiteral("image/png")) {
@@ -700,6 +701,7 @@ AsyncFetchAndSetIconForPage::OnStopRequest(nsIRequest* aRequest,
   else {
     mozilla::Telemetry::Accumulate(mozilla::Telemetry::PLACES_FAVICON_OTHER_SIZES, mIcon.data.Length());
   }
+#endif
 
   rv = OptimizeIconSize(mIcon, favicons);
   NS_ENSURE_SUCCESS(rv, rv);
diff --git a/toolkit/components/places/PlacesDBUtils.jsm b/toolkit/components/places/PlacesDBUtils.jsm
index 13abab9353..c2ddfefe1f 100644
--- a/toolkit/components/places/PlacesDBUtils.jsm
+++ b/toolkit/components/places/PlacesDBUtils.jsm
@@ -55,11 +55,13 @@ this.PlacesDBUtils = {
     else {
       // All tasks have been completed.
       // Telemetry the time it took for maintenance, if a start time exists.
+/*
       if (aTasks._telemetryStart) {
         Services.telemetry.getHistogramById("PLACES_IDLE_MAINTENANCE_TIME_MS")
                           .add(Date.now() - aTasks._telemetryStart);
         aTasks._telemetryStart = 0;
       }
+*/
 
       if (aTasks.callback) {
         let scope = aTasks.scope || Cu.getGlobalForObject(aTasks.callback);
@@ -92,7 +94,7 @@ this.PlacesDBUtils = {
     , this.checkCoherence
     , this._refreshUI
     ]);
-    tasks._telemetryStart = Date.now();
+    //tasks._telemetryStart = Date.now();
     tasks.callback = function() {
       Services.prefs.setIntPref("places.database.lastMaintenance",
                                 parseInt(Date.now() / 1000));
@@ -870,6 +872,7 @@ this.PlacesDBUtils = {
   telemetry: function PDBU_telemetry(aTasks, aHealthReportCallback=null)
   {
     let tasks = new Tasks(aTasks);
+/*
 
     let isTelemetry = !aHealthReportCallback;
 
@@ -948,7 +951,7 @@ this.PlacesDBUtils = {
       },
 
       { histogram: "PLACES_DATABASE_PAGESIZE_B",
-        query:     "PRAGMA page_size /* PlacesDBUtils.jsm PAGESIZE_B */" },
+        query:     "PRAGMA page_size" },
 
       { histogram: "PLACES_DATABASE_SIZE_PER_PAGE_B",
         query:     "PRAGMA page_count",
@@ -1053,6 +1056,7 @@ this.PlacesDBUtils = {
       );
     }
 
+*/
     PlacesDBUtils._executeTasks(tasks);
   },
 
diff --git a/toolkit/components/places/UnifiedComplete.js b/toolkit/components/places/UnifiedComplete.js
index 29aeb197a6..d45e287589 100644
--- a/toolkit/components/places/UnifiedComplete.js
+++ b/toolkit/components/places/UnifiedComplete.js
@@ -254,8 +254,10 @@ Cu.import("resource://gre/modules/Services.jsm");
 
 XPCOMUtils.defineLazyModuleGetter(this, "PlacesUtils",
                                   "resource://gre/modules/PlacesUtils.jsm");
+/*
 XPCOMUtils.defineLazyModuleGetter(this, "TelemetryStopwatch",
                                   "resource://gre/modules/TelemetryStopwatch.jsm");
+*/
 XPCOMUtils.defineLazyModuleGetter(this, "NetUtil",
                                   "resource://gre/modules/NetUtil.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "Preferences",
@@ -859,9 +861,11 @@ Search.prototype = {
     if (!this.pending)
       return;
 
+/*
     TelemetryStopwatch.start(TELEMETRY_1ST_RESULT, this);
     if (this._searchString)
       TelemetryStopwatch.start(TELEMETRY_6_FIRST_RESULTS, this);
+*/
 
     // Since we call the synchronous parseSubmissionURL function later, we must
     // wait for the initialization of PlacesSearchAutocompleteProvider first.
@@ -1339,7 +1343,7 @@ Search.prototype = {
   },
 
   _onResultRow: function (row) {
-    TelemetryStopwatch.finish(TELEMETRY_1ST_RESULT, this);
+    //TelemetryStopwatch.finish(TELEMETRY_1ST_RESULT, this);
     let queryType = row.getResultByIndex(QUERYINDEX_QUERYTYPE);
     let match;
     switch (queryType) {
@@ -1430,8 +1434,10 @@ Search.prototype = {
                                match.style,
                                match.finalCompleteValue);
 
+/*
     if (this._result.matchCount == 6)
       TelemetryStopwatch.finish(TELEMETRY_6_FIRST_RESULTS, this);
+*/
 
     this.notifyResults(true);
   },
@@ -1939,8 +1945,10 @@ UnifiedComplete.prototype = {
    *        results or not.
    */
   finishSearch: function (notify=false) {
+/*
     TelemetryStopwatch.cancel(TELEMETRY_1ST_RESULT, this);
     TelemetryStopwatch.cancel(TELEMETRY_6_FIRST_RESULTS, this);
+*/
     // Clear state now to avoid race conditions, see below.
     let search = this._currentSearch;
     this._lastLowResultsSearchSuggestion = search._lastLowResultsSearchSuggestion;
diff --git a/toolkit/components/places/nsPlacesAutoComplete.js b/toolkit/components/places/nsPlacesAutoComplete.js
index 9f8f560301..8e24137e09 100644
--- a/toolkit/components/places/nsPlacesAutoComplete.js
+++ b/toolkit/components/places/nsPlacesAutoComplete.js
@@ -8,8 +8,10 @@ Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
 Components.utils.import("resource://gre/modules/Services.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "PlacesUtils",
                                   "resource://gre/modules/PlacesUtils.jsm");
+/*
 XPCOMUtils.defineLazyModuleGetter(this, "TelemetryStopwatch",
                                   "resource://gre/modules/TelemetryStopwatch.jsm");
+*/
 XPCOMUtils.defineLazyModuleGetter(this, "NetUtil",
                                   "resource://gre/modules/NetUtil.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "Task",
@@ -1525,7 +1527,7 @@ urlInlineComplete.prototype = {
       let query = this._hostQuery;
       query.params.search_string = this._currentSearchString.toLowerCase();
       // This is just to measure the delay to reach the UI, not the query time.
-      TelemetryStopwatch.start(DOMAIN_QUERY_TELEMETRY);
+      //TelemetryStopwatch.start(DOMAIN_QUERY_TELEMETRY);
       let wrapper = new AutoCompleteStatementCallbackWrapper(this, {
         handleResult: aResultSet => {
           if (this._pendingSearch != pendingSearch)
@@ -1555,7 +1557,7 @@ urlInlineComplete.prototype = {
         handleCompletion: aReason => {
           if (this._pendingSearch != pendingSearch)
             return;
-          TelemetryStopwatch.finish(DOMAIN_QUERY_TELEMETRY);
+          //TelemetryStopwatch.finish(DOMAIN_QUERY_TELEMETRY);
           this._finishSearch();
         }
       }, this._db);