--- a/browser/components/migration/MigrationUtils.jsm
+++ b/browser/components/migration/MigrationUtils.jsm
@@ -5,29 +5,31 @@
 "use strict";
 
 this.EXPORTED_SYMBOLS = ["MigrationUtils", "MigratorPrototype"];
 
 const { classes: Cc, interfaces: Ci, results: Cr, utils: Cu } = Components;
 const TOPIC_WILL_IMPORT_BOOKMARKS = "initial-migration-will-import-default-bookmarks";
 const TOPIC_DID_IMPORT_BOOKMARKS = "initial-migration-did-import-default-bookmarks";
 
-Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource://gre/modules/AppConstants.jsm");
 Cu.import("resource://gre/modules/Services.jsm");
 Cu.import("resource://gre/modules/Task.jsm");
-Cu.import("resource://gre/modules/AppConstants.jsm");
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
 
+XPCOMUtils.defineLazyModuleGetter(this, "AutoMigrate",
+                                  "resource:///modules/AutoMigrate.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "BookmarkHTMLUtils",
+                                  "resource://gre/modules/BookmarkHTMLUtils.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "PlacesUtils",
                                   "resource://gre/modules/PlacesUtils.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "BookmarkHTMLUtils",
-                                  "resource://gre/modules/BookmarkHTMLUtils.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "PromiseUtils",
                                   "resource://gre/modules/PromiseUtils.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "AutoMigrate",
-                                  "resource:///modules/AutoMigrate.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "TelemetryStopwatch",
+                                  "resource://gre/modules/TelemetryStopwatch.jsm");
 
 var gMigrators = null;
 var gProfileStartup = null;
 var gMigrationBundle = null;
 
 XPCOMUtils.defineLazyGetter(this, "gAvailableMigratorKeys", function() {
   if (AppConstants.platform == "win") {
     return [
@@ -192,16 +194,20 @@ this.MigratorPrototype = {
     let resources = this._getMaybeCachedResources(aProfile);
     if (!resources) {
       return [];
     }
     let types = resources.map(r => r.type);
     return types.reduce((a, b) => a |= b, 0);
   },
 
+  getKey: function MP_getKey() {
+    return this.contractID.match(/\=([^\=]+)$/)[1];
+  },
+
   /**
    * DO NOT OVERRIDE - After deCOMing migration, the UI will just call
    * migrate for each resource.
    *
    * @see nsIBrowserProfileMigrator
    */
   migrate: function MP_migrate(aItems, aStartup, aProfile) {
     let resources = this._getMaybeCachedResources(aProfile);
@@ -213,16 +219,41 @@ this.MigratorPrototype = {
 
     // Used to periodically give back control to the main-thread loop.
     let unblockMainThread = function () {
       return new Promise(resolve => {
         Services.tm.mainThread.dispatch(resolve, Ci.nsIThread.DISPATCH_NORMAL);
       });
     };
 
+    let getHistogramForResourceType = resourceType => {
+      if (resourceType == MigrationUtils.resourceTypes.HISTORY) {
+        return "FX_MIGRATION_HISTORY_IMPORT_MS";
+      }
+      if (resourceType == MigrationUtils.resourceTypes.BOOKMARKS) {
+        return "FX_MIGRATION_BOOKMARKS_IMPORT_MS";
+      }
+      if (resourceType == MigrationUtils.resourceTypes.PASSWORDS) {
+        return "FX_MIGRATION_LOGINS_IMPORT_MS";
+      }
+      return null;
+    };
+    let maybeStartTelemetryStopwatch = (resourceType, resource) => {
+      let histogram = getHistogramForResourceType(resourceType);
+      if (histogram) {
+        TelemetryStopwatch.startKeyed(histogram, this.getKey(), resource);
+      }
+    };
+    let maybeStopTelemetryStopwatch = (resourceType, resource) => {
+      let histogram = getHistogramForResourceType(resourceType);
+      if (histogram) {
+        TelemetryStopwatch.finishKeyed(histogram, this.getKey(), resource);
+      }
+    };
+
     // Called either directly or through the bookmarks import callback.
     let doMigrate = Task.async(function*() {
       let resourcesGroupedByItems = new Map();
       resources.forEach(function(resource) {
         if (!resourcesGroupedByItems.has(resource.type)) {
           resourcesGroupedByItems.set(resource.type, new Set());
         }
         resourcesGroupedByItems.get(resource.type).add(resource)
@@ -241,18 +272,20 @@ this.MigratorPrototype = {
         let migrationType = key, itemResources = value;
 
         notify("Migration:ItemBeforeMigrate", migrationType);
 
         let itemSuccess = false;
         for (let res of itemResources) {
           // Workaround bug 449811.
           let resource = res;
+          maybeStartTelemetryStopwatch(migrationType, resource);
           let completeDeferred = PromiseUtils.defer();
           let resourceDone = function(aSuccess) {
+            maybeStopTelemetryStopwatch(migrationType, resource);
             itemResources.delete(resource);
             itemSuccess |= aSuccess;
             if (itemResources.size == 0) {
               notify(itemSuccess ?
                      "Migration:ItemAfterMigrate" : "Migration:ItemError",
                      migrationType);
               resourcesGroupedByItems.delete(migrationType);
               if (resourcesGroupedByItems.size == 0) {

--- a/toolkit/components/telemetry/Histograms.json
+++ b/toolkit/components/telemetry/Histograms.json
@@ -4275,16 +4275,49 @@
   },
   "FX_MIGRATION_HOMEPAGE_IMPORTED": {
     "expires_in_version": "53",
     "kind": "boolean",
     "keyed": true,
     "releaseChannelCollection": "opt-out",
     "description": "Whether the homepage was imported during browser migration. Only available on release builds during firstrun."
   },
+  "FX_MIGRATION_BOOKMARKS_IMPORT_MS": {
+    "bug_numbers": [1289436],
+    "alert_emails": ["gijs@mozilla.com"],
+    "expires_in_version": "54",
+    "kind": "exponential",
+    "n_buckets": 70,
+    "high": 100000,
+    "releaseChannelCollection": "opt-out",
+    "keyed": true,
+    "description": "How long it took to import bookmarks from another browser, keyed by the name of the browser."
+  },
+  "FX_MIGRATION_HISTORY_IMPORT_MS": {
+    "bug_numbers": [1289436],
+    "alert_emails": ["gijs@mozilla.com"],
+    "expires_in_version": "54",
+    "kind": "exponential",
+    "n_buckets": 70,
+    "high": 100000,
+    "releaseChannelCollection": "opt-out",
+    "keyed": true,
+    "description": "How long it took to import history from another browser, keyed by the name of the browser."
+  },
+  "FX_MIGRATION_LOGINS_IMPORT_MS": {
+    "bug_numbers": [1289436],
+    "alert_emails": ["gijs@mozilla.com"],
+    "expires_in_version": "54",
+    "kind": "exponential",
+    "n_buckets": 70,
+    "high": 100000,
+    "releaseChannelCollection": "opt-out",
+    "keyed": true,
+    "description": "How long it took to import logins (passwords) from another browser, keyed by the name of the browser."
+  },
   "FX_STARTUP_MIGRATION_BROWSER_COUNT": {
     "bug_numbers": [1275114],
     "alert_emails": ["gijs@mozilla.com"],
     "expires_in_version": "53",
     "kind": "enumerated",
     "n_values": 15,
     "releaseChannelCollection": "opt-out",
     "description": "Number of browsers from which the user could migrate on initial profile migration. Only available on release builds during firstrun."