diff --git a/src/MainPage.js b/src/MainPage.js
index 52cbcca..eca4b49 100644
--- a/src/MainPage.js
+++ b/src/MainPage.js
@@ -1,7 +1,7 @@
 import { useEffect, useState } from 'react';
 import { useSelector, useDispatch } from 'react-redux'
 import AppBar from './AppBar';
-import RecordList from './RecordList';
+import RecordList from './components/RecordList';
 import PlayerBar from './PlayerBar';
 import store from './business/store';
 import yzs from "./business/request.js";
@@ -33,15 +33,24 @@ const theme = createTheme({
     },
 });
 
+const lyricsBrowserStyle = {
+    marginTop: 16,
+    paddingBottom: 40,
+    padding: 24,
+}
+
 
 function fetchRecord(accessToken, record) {
-    yzs.download(accessToken, record.transResultUrl).then(
-        blob => blob.text()
-    ).then(text => {
-        // console.log("type", record.type, text);
-        let payload = record.type === 1 ? JSON.parse(text) : text;
-        store.dispatch(setCurrentLyric(payload));
-    });
+    if (record.transResultUrl) {
+        yzs.download(accessToken, record.transResultUrl).then(
+            blob => blob.text()
+        ).then(text => {
+            // console.log("type", record.type, text);
+            let payload = record.type === 1 ? JSON.parse(text) : text;
+            store.dispatch(setCurrentLyric(payload));
+        });
+    }
+
     yzs.download(accessToken, record.audioUrl).then(blob => {
         store.dispatch(setCurrentBlob(URL.createObjectURL(blob)));
     });
@@ -96,8 +105,11 @@ export default function () {
     const passportId = useSelector(state => state.user.passportId);
     const currentTime = useSelector(state => state.recorder.currentTime);
     const currentLyric = useSelector(state => state.recorder.currentLyric);
+    const currentIndex = useSelector(state => state.recorder.currentIndex);
+    const recordList = useSelector(state => state.recorder.list);
     const [playerBarWidth, setPlayerBarWidth] = useState(0);
     const [open, setOpen] = useState(true);
+    const [hasLyric, setHasLyric] = useState(true);
     useEffect(() => {
         if (passportId <= 0) return;
         yzs.get_record_list(accessToken, passportId).then(list => {
@@ -110,6 +122,14 @@ export default function () {
         });
     }, [passportId]);
 
+    useEffect(() => {
+        if (recordList.length <= 0) {
+            setHasLyric(false);
+            return;
+        }
+        setHasLyric((recordList.at(currentIndex).transResultUrl));
+    }, [currentIndex, currentLyric]);
+
     const onClick = () => {
         setOpen(!open);
         setPlayerBarWidth(document.documentElement.clientWidth - 240 - 48); // 防止中途底部出现scrollbar
@@ -138,13 +158,15 @@ export default function () {
         <ThemeProvider theme={theme}>
             <CssBaseline />
             <AppBar />
-            <RecordList open={open} fetchRecord={fetchRecord} />
+            <RecordList open={open} recordList={recordList} currentIndex={currentIndex} fetchRecord={fetchRecord} />
             <ClickHanlde open={open} onClick={onClick} />
             <Main open={open}
                 onTransitionEnd={onTransitionEnd}
             >
                 <PlayerBar width={playerBarWidth} currentTime={currentTime} />
-                <RecordLyrics currentLyric={currentLyric} currentTime={currentTime} />
+                {hasLyric ? <RecordLyrics style={lyricsBrowserStyle} currentLyric={currentLyric} currentTime={currentTime} /> :
+                    <div style={lyricsBrowserStyle}
+                    />}
             </Main>
         </ThemeProvider>
     </Box >
diff --git a/src/PlayerBar.js b/src/PlayerBar.js
index c06a1fd..934511e 100644
--- a/src/PlayerBar.js
+++ b/src/PlayerBar.js
@@ -5,7 +5,7 @@ import pauseIcon from "./assets/play.png";
 import playIcon from "./assets/pause.png";
 import downloadIcon from "./assets/download.png";
 import { setCurrentTime, setPauseState, togglePauseState, setCurrentWaveData } from "./business/recorderSlice.js"
-import { audioWaveData } from "./business/utilities"
+import { audioWaveData, sampleInterval } from "./business/utilities"
 import ProgressBar from "./components/ProgressBar";
 
 const durationFormat = (time) => {
@@ -33,7 +33,7 @@ export default function ({ width, currentTime }) {
 
     useEffect(() => {
         if (currentBlob.length <= 0) return;
-        audioWaveData(currentBlob, (duration > 20 * 60) ? 200 : 100)
+        audioWaveData(currentBlob, sampleInterval(duration))
             .then(data => dispatch(setCurrentWaveData(data)));
     }, [duration]);
 
diff --git a/src/RecordLyrics.js b/src/RecordLyrics.js
index e84116d..e143a1e 100644
--- a/src/RecordLyrics.js
+++ b/src/RecordLyrics.js
@@ -1,6 +1,5 @@
 import React from "react";
 import { Typography, Paper } from "@mui/material";
-import styles from './RecordLyrics.module.css';
 import { useSelector, useDispatch } from 'react-redux'
 
 function isHighlight(currentTime, { start, end }) {
@@ -8,17 +7,15 @@ function isHighlight(currentTime, { start, end }) {
     return (currentTime > start) && (currentTime <= end);
 }
 
-
-
-export default function ({ currentLyric, currentTime }) {
+export default function ({ style, currentLyric, currentTime }) {
     const currentIndex = useSelector(state => state.recorder.currentIndex);
     const recordList = useSelector(state => state.recorder.list);
 
     if (recordList.length === 0) return <React.Fragment />;
 
-    return <Paper className={styles.lyricsBrowser}>
+    return <Paper style={style}>
         {recordList.at(currentIndex).type === 1 ? (typeof currentLyric === "object" ? currentLyric.map((lyric, index) => {
-            return <div className={styles.lyricItem}>
+            return <div style={{ paddingBottom: 40 }}>
                 <Typography align="left" color={isHighlight(currentTime, lyric) ? "red" : "black"}>{lyric.text}</Typography>
             </div>
         }) : <React.Fragment />) : <div style={{ whiteSpace: "pre-wrap" }}>{typeof currentLyric === "string" ? currentLyric : ""}</div>}
diff --git a/src/RecordLyrics.module.css b/src/RecordLyrics.module.css
deleted file mode 100644
index 13494e3..0000000
--- a/src/RecordLyrics.module.css
+++ /dev/null
@@ -1,9 +0,0 @@
-.lyricsBrowser {
-    margin-top: 16px;
-    padding-bottom: 40px;
-    padding: 24px;
-}
-
-.lyricItem {
-    padding-bottom: 40px;
-}
\ No newline at end of file
diff --git a/src/business/request.js b/src/business/request.js
index e7c7969..43858f1 100644
--- a/src/business/request.js
+++ b/src/business/request.js
@@ -183,10 +183,11 @@ const yzs = {
                 'Content-Type': 'application/x-www-form-urlencoded; charset=utf-8',
             },
         }).then(response => response.json()).then((json) => {
-            console.log("flushToken: ", json.result.flushToken);
+            if (json.returnCode != "uc_0000") {
+                throw json.message;
+            }
+            // console.log("flushToken: ", json.result.flushToken);
             return json.result.flushToken;
-        }).catch(error => {
-            console.log(error);
         });
     },
     dynamic_code_login: function (udid, userCell, phoneCode) {
diff --git a/src/business/utilities.js b/src/business/utilities.js
index 868cd1a..14f17d1 100644
--- a/src/business/utilities.js
+++ b/src/business/utilities.js
@@ -1,3 +1,12 @@
+// 间隔多长时间取一个采样点
+// duration 秒，有小数点
+const sampleInterval = (duration) => {
+    let interval = (duration > 20 * 60) ? 200 : 100;
+    let isFirefox = window.navigator.userAgent.includes("Firefox");
+    if (isFirefox && (interval < 400)) interval = 400; // firefox canvas width 不能过长
+    return interval;
+}
+
 // interval 间隔ms采点
 function audioWaveData(url, interval) {
     if (url.length <= 0) return;
@@ -24,4 +33,4 @@ function audioWaveData(url, interval) {
         });
 }
 
-export { audioWaveData };
\ No newline at end of file
+export { sampleInterval, audioWaveData };
\ No newline at end of file
diff --git a/src/components/ProgressBar.js b/src/components/ProgressBar.js
index 3558ca3..2338e1f 100644
--- a/src/components/ProgressBar.js
+++ b/src/components/ProgressBar.js
@@ -1,4 +1,6 @@
 import { useRef, useCallback, useState, useEffect } from "react";
+import { sampleInterval } from "../business/utilities"
+import { useMemo } from "react";
 
 const pointWidth = 2;
 const pointMargin = 3;
@@ -82,7 +84,7 @@ const paintCanvas = ({
 
 // duration ms
 export default function ({ width, duration, currentTime, playing, seek, waveData }) {
-    const interval = (duration > 20 * 60 * 1000) ? 200 : 100; // ms
+    const interval = useMemo(() => sampleInterval(duration / 1000), [duration]);
     const container = useRef(null);
     const canvas = useRef(null);
     const [scrollLeft, setScrollLeft] = useState(0);
diff --git a/src/RecordList.js b/src/components/RecordList.js
similarity index 90%
rename from src/RecordList.js
rename to src/components/RecordList.js
index 0ef1d61..8447ad0 100644
--- a/src/RecordList.js
+++ b/src/components/RecordList.js
@@ -8,16 +8,14 @@ import ListItemButton from '@mui/material/ListItemButton';
 import ListItemText from '@mui/material/ListItemText';
 import Typography from '@mui/material/Typography';
 import Toolbar from '@mui/material/Toolbar';
-import { setCurrentIndex } from "./business/recorderSlice.js"
+import { setCurrentIndex } from "../business/recorderSlice.js"
 import AccessTimeFilledIcon from '@mui/icons-material/AccessTimeFilled';
 
 const drawerWidth = 240;
 
-export default function ({ open, fetchRecord }) {
+export default function ({ open, recordList, currentIndex, fetchRecord }) {
     const dispatch = useDispatch();
     const accessToken = useSelector(state => state.user.accessToken);
-    const currentIndex = useSelector(state => state.recorder.currentIndex);
-    const recordList = useSelector(state => state.recorder.list);
     const onSelected = (event, index) => {
         console.log("onSelected", index, recordList.at(index).transResultUrl)
         dispatch(setCurrentIndex(index));