diff --git a/webextensions/background/migration.js b/webextensions/background/migration.js
index fda7caeb1..7bcae6bae 100644
--- a/webextensions/background/migration.js
+++ b/webextensions/background/migration.js
@@ -22,7 +22,7 @@ function log(...args) {
   internalLogger('background/migration', ...args);
 }
 
-const kCONFIGS_VERSION = 28;
+const kCONFIGS_VERSION = 29;
 const kFEATURES_VERSION = 9;
 
 export function migrateConfigs() {
@@ -268,6 +268,10 @@ export function migrateConfigs() {
     case 27:
       if (configs.openAllBookmarksWithGroupAlways !== null)
         configs.suppressGroupTabForStructuredTabsFromBookmarks = !configs.openAllBookmarksWithGroupAlways;
+
+    case 28:
+      if (configs.heartbeatInterval == 1000)
+        configs.heartbeatInterval = configs.$default.heartbeatInterval;
   }
   configs.configsVersion = kCONFIGS_VERSION;
 }
diff --git a/webextensions/common/common.js b/webextensions/common/common.js
index 05c6644fe..93021e989 100644
--- a/webextensions/common/common.js
+++ b/webextensions/common/common.js
@@ -324,7 +324,7 @@ export const configs = new Configs({
   enableWorkaroundForBug1763420_reloadMaskImage: true, // workaround for https://bugzilla.mozilla.org/show_bug.cgi?id=1763420
   maximumDelayForBug1561879: 500,
   workaroundForBug1548949DroppedTabs: null,
-  heartbeatInterval: 1000,
+  heartbeatInterval: 5000,
   connectionTimeoutDelay: 500,
   maximumAcceptableDelayForTabDuplication: 10 * 1000,
   maximumDelayUntilTabIsTracked: 10 * 60 * 1000,