diff --git a/packages/frontend/package.json b/packages/frontend/package.json
index 90c0cca44..d9d5bdecb 100644
--- a/packages/frontend/package.json
+++ b/packages/frontend/package.json
@@ -68,6 +68,7 @@
 		"tsconfig-paths": "4.2.0",
 		"twemoji-parser": "14.0.0",
 		"typescript": "5.1.6",
+		"ua-parser-js": "2.0.0-alpha.2",
 		"uuid": "9.0.0",
 		"vanilla-tilt": "1.8.0",
 		"vite": "4.4.4",
diff --git a/packages/frontend/src/components/MkPagination.vue b/packages/frontend/src/components/MkPagination.vue
index 8f5ae87e5..a554fc411 100644
--- a/packages/frontend/src/components/MkPagination.vue
+++ b/packages/frontend/src/components/MkPagination.vue
@@ -47,6 +47,7 @@ import MkButton from '@/components/MkButton.vue';
 import { defaultStore } from '@/store';
 import { MisskeyEntity } from '@/types/date-separated-list';
 import { i18n } from '@/i18n';
+import { UAParser } from 'ua-parser-js';
 
 const SECOND_FETCH_LIMIT = 30;
 const TOLERANCE = 6;
@@ -92,6 +93,10 @@ function arrayToEntries(entities: MisskeyEntity[]): [string, MisskeyEntity][] {
 function concatMapWithArray(map: MisskeyEntityMap, entities: MisskeyEntity[]): MisskeyEntityMap {
 	return new Map([...map, ...arrayToEntries(entities)]);
 }
+
+const ua = new UAParser(navigator.userAgent);
+const isWebKit = ua.getEngine().name === 'WebKit';
+console.log('isWebKit', isWebKit);
 </script>
 <script lang="ts" setup>
 import { infoImageUrl } from '@/instance';
@@ -457,7 +462,7 @@ const prepend = (item: MisskeyEntity): void => {
 			// かなりスクロールの先頭にいる場合
 			if (items.value.has(item.id)) return; // 既にタイムラインにある場合は何もしない
 			unshiftItems([item]);
-		} else if (!weakBacked) {
+		} else if (!isWebKit && !weakBacked) {
 			// ちょっと先頭にいる場合はスクロールを調整する
 			prependQueue(item);
 			executeQueue();
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 205efb2ab..240b9451d 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -787,6 +787,9 @@ importers:
       typescript:
         specifier: 5.1.6
         version: 5.1.6
+      ua-parser-js:
+        specifier: 2.0.0-alpha.2
+        version: 2.0.0-alpha.2
       uuid:
         specifier: 9.0.0
         version: 9.0.0
@@ -20334,6 +20337,10 @@ packages:
     engines: {node: '>=14.17'}
     hasBin: true
 
+  /ua-parser-js@2.0.0-alpha.2:
+    resolution: {integrity: sha512-Vz+BJN/EFC1OaUv0eu5kPyX7HEZIO7Dv29jIK7rMuKjUB1qqq+Is/XIpu5iV5XDvoNl62dM7ay8DtzYjBDI0WA==}
+    dev: false
+
   /ufo@1.1.2:
     resolution: {integrity: sha512-TrY6DsjTQQgyS3E3dBaOXf0TpPD8u9FVrVYmKVegJuFw51n/YB9XPt+U6ydzFG5ZIN7+DIjPbNmXoBj9esYhgQ==}
     dev: true