diff --git a/app/common/setting-definitions.js b/app/common/setting-definitions.js
index 4d56525..b7c0a4f 100644
--- a/app/common/setting-definitions.js
+++ b/app/common/setting-definitions.js
@@ -174,6 +174,12 @@ _VAL[_NAM.CFGS_FAVICON_SOURCE] = (v)=>{
     return (( v === FAVICON_SITE || v === FAVICON_CHROME || v === FAVICON_DDG ) ? v : undefined);
 };
 
+// #316.  How often to autosave.  Empty or <= 0 == don't autosave
+_NAM.CFGS_AUTOREMEMBER_MINUTES = 'autoremember-timer-minutes';
+_DEF[_NAM.CFGS_AUTOREMEMBER_MINUTES] = '';
+_VAL[_NAM.CFGS_AUTOREMEMBER_MINUTES] = _vint;
+
+
 // }}}2
 
 /// The default values for the configuration settings.
diff --git a/app/settings/manifest.js b/app/settings/manifest.js
index 7c8e478..90e9d9e 100644
--- a/app/settings/manifest.js
+++ b/app/settings/manifest.js
@@ -216,6 +216,15 @@ setting_definitions.push(
             "type": "checkbox",
             "label": future_i18n('Prompt for confirmation before closing or deleting a tab that is currently playing audio (<i class="fa fa-music"></i>)'),
         },
+        {
+            "tab": future_i18n("Behaviour"),
+            "group": future_i18n("Autosave"),
+            "name": S.S_AUTOREMEMBER_MINUTES,
+            "type": "text",
+            "label": future_i18n('If this is an integer <i>I</i> &gt;= 0, automatically '
+                + 'remember all open windows/tabs every <i>I</i> minutes.  Refresh the '
+                + 'TabFern window to apply changes to this option.'),
+        },
 
         // Appearance
         {
diff --git a/app/win/main_tl.js b/app/win/main_tl.js
index 3b43a3d..270cda0 100644
--- a/app/win/main_tl.js
+++ b/app/win/main_tl.js
@@ -4301,6 +4301,14 @@ function addEventListeners(done)
     done();
 } //addEventListeners
 
+function startAutoRememberTimerIfRequested(done) {
+    const minutes = S.getInt(S.S_AUTOREMEMBER_MINUTES, 0);
+    if(minutes > 0) {
+        // TODO RESUME HERE --- start timer
+    }
+    done();
+} // startAutoRememberTimerIfRequested()
+
 /// The last function to be called after all other initialization has
 /// completed successfully.
 function initTreeFinal(done)
@@ -4439,9 +4447,9 @@ function main()
     })
     .then(addOpenWindowsToTree)
     .then(addEventListeners)
-    .then(initTreeFinal)
+    .then(initTreeFinal)        // This needs to be the last real init step
 
-    .val(check_init_step_count)
+    .val(check_init_step_count) // This is a sanity check after initTreeFinal
 
     // Stop the spinner, if it started
     .val(()=>{
@@ -4450,6 +4458,8 @@ function main()
         //clearTimeout(spin_timer);
     })
 
+    .then(startAutoRememberTimerIfRequested)
+
     .or((err)=>{
         $(K.INIT_MSG_SEL).text(
             $(K.INIT_MSG_SEL).text() + "\n" + err