diff --git a/entrypoints/background.ts b/entrypoints/background.ts
index c835720..daab621 100644
--- a/entrypoints/background.ts
+++ b/entrypoints/background.ts
@@ -40,8 +40,9 @@ export default defineBackground(() => {
     try {
       await browser.action.openPopup();
     } catch (err) {
-      console.error('[Context Menu] 打开 popup 失败:', err);
-      // 打开失败时清除残留数据，避免下次打开 popup 时误触发
+      // openPopup 在无活动窗口时会失败（如窗口失焦、特殊页面等）
+      // 数据已保存到 storage，用户手动打开 popup 仍可正常使用
+      console.warn('[Context Menu] 自动打开 popup 失败，请手动点击扩展图标:', err);
       await chrome.storage.local.remove('contextMenu/pendingData');
     }
   });
diff --git a/i18n/locales/en/qrCode.json b/i18n/locales/en/qrCode.json
index a1098e1..79e6be7 100644
--- a/i18n/locales/en/qrCode.json
+++ b/i18n/locales/en/qrCode.json
@@ -1,31 +1,48 @@
 {
   "pageTitle": "QR Code Tools",
   "pageSubtitle": "Generate and parse QR codes",
+
+  "generateMode": "Generate QR Code",
+  "parseMode": "Parse QR Code",
+
   "urlToQr": "URL to QR Code",
   "qrToUrl": "QR Code to URL",
-  "urlInputLabel": "Enter URL",
-  "urlInputPlaceholder": "https://example.com",
+
+  "urlInputLabel": "Enter URL or Text",
+  "urlInputPlaceholder": "Enter URL or text content, QR code will be generated automatically",
   "generateButton": "Generate QR Code",
   "generating": "Generating...",
+
   "qrCodeWillShow": "QR code will be shown here",
   "downloadButton": "Download QR Code",
   "copyQrButton": "Copy QR Code Image",
+
   "qrCodeSuccess": "QR code generated successfully",
   "qrCodeDownloadSuccess": "QR code downloaded successfully",
   "qrCodeCopySuccess": "QR code copied to clipboard",
+
   "selectImage": "Please select a QR code image",
   "parseSuccess": "QR code parsed successfully",
-  "noQrDetected": "No QR code detected",
+  "noQrDetected": "No QR code detected, please ensure the image is clear and contains a QR code",
   "parseError": "Failed to parse QR code, please try again",
-  "imagePasted": "Image pasted successfully",
+  "generateError": "Failed to generate QR code, please check the input",
+  "copyError": "Copy failed, please try again",
+
+  "imagePasted": "Image pasted, parsing...",
   "imagePasteError": "Failed to paste image, please try again",
   "imageCleared": "Image cleared",
   "clickToUpload": "Click, drag, or paste to upload QR code image",
-  "supportFormats": "Supports PNG, JPG, WEBP formats",
+  "supportFormats": "Supports PNG, JPG, WEBP, Base64 formats",
+
   "parseButton": "Parse QR Code",
   "parsing": "Parsing...",
   "resultLabel": "Parsing Result",
   "copyTooltip": "Copy",
-  "enterUrlError": "Please enter a URL",
-  "clickToChange": "Click to change image"
+
+  "enterUrlError": "Please enter URL or text",
+  "clickToChange": "Click to change image",
+
+  "pasteHint": "Supports Ctrl+V to paste images or Base64 strings",
+  "autoGenerateHint": "QR code will be generated automatically after input",
+  "autoParseHint": "QR code will be parsed automatically after upload"
 }
diff --git a/i18n/locales/zh/qrCode.json b/i18n/locales/zh/qrCode.json
index f90698a..65f86f9 100644
--- a/i18n/locales/zh/qrCode.json
+++ b/i18n/locales/zh/qrCode.json
@@ -1,31 +1,48 @@
 {
   "pageTitle": "二维码工具",
   "pageSubtitle": "生成和解析二维码",
+
+  "generateMode": "生成二维码",
+  "parseMode": "解析二维码",
+
   "urlToQr": "URL 转二维码",
   "qrToUrl": "二维码转 URL",
-  "urlInputLabel": "输入 URL",
-  "urlInputPlaceholder": "https://example.com",
+
+  "urlInputLabel": "输入 URL 或文本",
+  "urlInputPlaceholder": "请输入 URL 或文本内容，将自动生成二维码",
   "generateButton": "生成二维码",
   "generating": "生成中...",
+
   "qrCodeWillShow": "二维码将显示在这里",
   "downloadButton": "下载二维码",
   "copyQrButton": "复制二维码",
+
   "qrCodeSuccess": "二维码生成成功",
   "qrCodeDownloadSuccess": "二维码下载成功",
   "qrCodeCopySuccess": "二维码已复制到剪贴板",
+
   "selectImage": "请选择二维码图片",
   "parseSuccess": "二维码解析成功",
-  "noQrDetected": "未检测到二维码",
+  "noQrDetected": "未检测到二维码，请确保图片清晰且包含二维码",
   "parseError": "解析二维码失败，请重试",
-  "imagePasted": "图片粘贴成功",
+  "generateError": "生成二维码失败，请检查输入内容",
+  "copyError": "复制失败，请重试",
+
+  "imagePasted": "图片粘贴成功，正在解析...",
   "imagePasteError": "粘贴图片失败，请重试",
   "imageCleared": "图片已清除",
   "clickToUpload": "点击、拖拽或粘贴上传二维码图片",
-  "supportFormats": "支持 PNG、JPG、WEBP 格式",
+  "supportFormats": "支持 PNG、JPG、WEBP、Base64 格式",
+
   "parseButton": "解析二维码",
   "parsing": "解析中...",
   "resultLabel": "解析结果",
   "copyTooltip": "复制",
-  "enterUrlError": "请输入 URL",
-  "clickToChange": "点击更换图片"
+
+  "enterUrlError": "请输入 URL 或文本",
+  "clickToChange": "点击更换图片",
+
+  "pasteHint": "支持 Ctrl+V 粘贴图片或 Base64 字符串",
+  "autoGenerateHint": "输入内容后将自动生成二维码",
+  "autoParseHint": "上传图片后将自动解析二维码"
 }
diff --git a/pages/QrCode/__tests__/index.test.tsx b/pages/QrCode/__tests__/index.test.tsx
new file mode 100644
index 0000000..de06001
--- /dev/null
+++ b/pages/QrCode/__tests__/index.test.tsx
@@ -0,0 +1,73 @@
+import { describe, it, expect, vi } from 'vitest';
+import { render, screen, fireEvent } from '@testing-library/react';
+import QrCodePage from '../index';
+
+// Mock 子组件
+vi.mock('@/components/QrCodePreview', () => ({
+  default: () => <div data-testid="qr-code-preview">QrCodePreview</div>,
+}));
+
+vi.mock('@/components/ImageUploader', () => ({
+  default: () => <div data-testid="image-uploader">ImageUploader</div>,
+}));
+
+// Mock QRious
+vi.mock('qrious', () => ({
+  default: vi.fn().mockImplementation(() => ({
+    toDataURL: () => 'data:image/png;base64,mock',
+  })),
+}));
+
+// Mock useSnackbar
+vi.mock('@/components/GlobalSnackbar', () => ({
+  useSnackbar: () => ({
+    showMessage: vi.fn(),
+  }),
+}));
+
+describe('QrCodePage', () => {
+  it('应该默认渲染生成模式', () => {
+    render(<QrCodePage />);
+    expect(screen.getByTestId('qr-code-preview')).toBeInTheDocument();
+  });
+
+  it('应该渲染模式切换按钮', () => {
+    render(<QrCodePage />);
+    expect(screen.getByText('qrCode:urlToQr')).toBeInTheDocument();
+    expect(screen.getByText('qrCode:qrToUrl')).toBeInTheDocument();
+  });
+
+  it('应该渲染页面标题', () => {
+    render(<QrCodePage />);
+    expect(screen.getByText('qrCode:pageTitle')).toBeInTheDocument();
+    expect(screen.getByText('qrCode:pageSubtitle')).toBeInTheDocument();
+  });
+
+  it('切换到解析模式应该渲染 ImageUploader', () => {
+    render(<QrCodePage />);
+    fireEvent.click(screen.getByText('qrCode:qrToUrl'));
+    expect(screen.getByTestId('image-uploader')).toBeInTheDocument();
+    expect(screen.queryByTestId('qr-code-preview')).not.toBeInTheDocument();
+  });
+
+  it('切换回生成模式应该渲染 QrCodePreview', () => {
+    render(<QrCodePage />);
+    // 先切换到解析模式
+    fireEvent.click(screen.getByText('qrCode:qrToUrl'));
+    expect(screen.getByTestId('image-uploader')).toBeInTheDocument();
+    // 再切换回生成模式
+    fireEvent.click(screen.getByText('qrCode:urlToQr'));
+    expect(screen.getByTestId('qr-code-preview')).toBeInTheDocument();
+  });
+
+  it('应该渲染输入区域', () => {
+    render(<QrCodePage />);
+    expect(screen.getByText('qrCode:urlInputLabel')).toBeInTheDocument();
+  });
+
+  it('应该渲染双栏布局容器', () => {
+    const { container } = render(<QrCodePage />);
+    const gridContainer = container.querySelector('.MuiGrid-container');
+    expect(gridContainer).toBeInTheDocument();
+  });
+});
diff --git a/pages/QrCode/index.tsx b/pages/QrCode/index.tsx
index 98e93fe..4f055e8 100644
--- a/pages/QrCode/index.tsx
+++ b/pages/QrCode/index.tsx
@@ -1,4 +1,4 @@
-import { useState, useCallback } from 'react';
+import { useState, useCallback, useEffect, useRef } from 'react';
 import { Box, Container, Grid, useMediaQuery, useTheme } from '@mui/material';
 import QrCodeIcon from '@mui/icons-material/QrCode';
 import QRious from 'qrious';
@@ -12,6 +12,7 @@ import { useSnackbar } from '@/components/GlobalSnackbar';
 import { parseQrCodeFromFile } from '@/utils/qrCodeParser';
 import { useContextMenuData } from '@/utils/useContextMenuData';
 import { useLazyTranslation } from '@/utils/useLazyTranslation';
+import { useDebounce } from '@/utils/useDebounce';
 import type { QrCodeMode, QrCodeGeneratorState, QrCodeParserState } from './types';
 
 export default function Index() {
@@ -44,7 +45,10 @@ export default function Index() {
   // 生成二维码
   const generateQrCode = useCallback(
     async (text: string) => {
-      if (!text) return;
+      if (!text) {
+        setGeneratorState((prev) => ({ ...prev, qrCodeDataUrl: '' }));
+        return;
+      }
 
       try {
         setGeneratorState((prev) => ({ ...prev, generating: true, inputError: '' }));
@@ -63,10 +67,13 @@ export default function Index() {
         });
 
         setGeneratorState((prev) => ({ ...prev, qrCodeDataUrl: qr.toDataURL() }));
-        showMessage(t('qrCode:qrCodeSuccess'), { severity: 'success', autoHideDuration: 1000 });
       } catch (error) {
         console.error('生成二维码失败:', error);
-        showMessage(t('qrCode:parseError'), { severity: 'error', autoHideDuration: 300 });
+        setGeneratorState((prev) => ({
+          ...prev,
+          inputError: t('qrCode:generateError'),
+        }));
+        showMessage(t('qrCode:generateError'), { severity: 'error', autoHideDuration: 3000 });
       } finally {
         setGeneratorState((prev) => ({ ...prev, generating: false }));
       }
@@ -74,15 +81,25 @@ export default function Index() {
     [t, showMessage],
   );
 
+  // 使用 useRef 存储 generateQrCode 的最新引用，避免无限循环
+  const generateQrCodeRef = useRef(generateQrCode);
+  generateQrCodeRef.current = generateQrCode;
+
+  // 防抖处理输入文本（200ms）
+  const debouncedTextToEncode = useDebounce(generatorState.textToEncode, 200);
+
+  // 当防抖后的文本变化时，自动生成二维码
+  useEffect(() => {
+    if (debouncedTextToEncode && mode === 'generate') {
+      generateQrCodeRef.current(debouncedTextToEncode);
+    }
+  }, [debouncedTextToEncode, mode]);
+
   // 处理右键菜单数据
-  const handleContextMenuData = useCallback(
-    (payload: string) => {
-      setMode('generate');
-      setGeneratorState((prev) => ({ ...prev, textToEncode: payload }));
-      generateQrCode(payload);
-    },
-    [generateQrCode],
-  );
+  const handleContextMenuData = useCallback((payload: string) => {
+    setMode('generate');
+    setGeneratorState((prev) => ({ ...prev, textToEncode: payload }));
+  }, []);
 
   useContextMenuData({ featureKey: 'qrCode', onData: handleContextMenuData });
 
@@ -100,12 +117,13 @@ export default function Index() {
         } else {
           const errorMsg = result.error || t('qrCode:noQrDetected');
           setParserState((prev) => ({ ...prev, parseError: errorMsg }));
-          showMessage(errorMsg, { severity: 'error', autoHideDuration: 1000 });
+          showMessage(errorMsg, { severity: 'error', autoHideDuration: 3000 });
         }
       } catch (error) {
         console.error('解析二维码失败:', error);
-        setParserState((prev) => ({ ...prev, parseError: t('qrCode:parseError') }));
-        showMessage(t('qrCode:parseError'), { severity: 'error', autoHideDuration: 300 });
+        const errorMsg = error instanceof Error ? error.message : t('qrCode:parseError');
+        setParserState((prev) => ({ ...prev, parseError: errorMsg }));
+        showMessage(errorMsg, { severity: 'error', autoHideDuration: 3000 });
       } finally {
         setParserState((prev) => ({ ...prev, parsing: false }));
       }
@@ -121,7 +139,7 @@ export default function Index() {
     link.href = generatorState.qrCodeDataUrl;
     link.download = 'qrcode.png';
     link.click();
-    showMessage(t('qrCode:qrCodeDownloadSuccess'), { severity: 'success', autoHideDuration: 300 });
+    showMessage(t('qrCode:qrCodeDownloadSuccess'), { severity: 'success', autoHideDuration: 1000 });
   }, [generatorState.qrCodeDataUrl, showMessage, t]);
 
   // 复制二维码
@@ -141,10 +159,26 @@ export default function Index() {
       showMessage(t('qrCode:qrCodeCopySuccess'), { severity: 'success', autoHideDuration: 1000 });
     } catch (error) {
       console.error('复制二维码失败:', error);
-      showMessage(t('qrCode:parseError'), { severity: 'error', autoHideDuration: 300 });
+      showMessage(t('qrCode:copyError'), { severity: 'error', autoHideDuration: 3000 });
     }
   }, [generatorState.qrCodeDataUrl, showMessage, t]);
 
+  // 处理文件选择
+  const handleFileChange = useCallback(
+    (file: File) => {
+      setParserState((prev) => ({
+        ...prev,
+        selectedFile: file,
+        previewUrl: URL.createObjectURL(file),
+        decodedResult: '',
+        parseError: '',
+      }));
+      // 自动解析
+      parseQrCode(file);
+    },
+    [parseQrCode],
+  );
+
   // 清除文件
   const handleClearFile = useCallback(() => {
     if (parserState.previewUrl) {
@@ -159,6 +193,51 @@ export default function Index() {
     }));
   }, [parserState.previewUrl]);
 
+  // 全局粘贴事件监听（解析模式下）
+  useEffect(() => {
+    if (mode !== 'parse') return;
+
+    const handlePaste = async (e: ClipboardEvent) => {
+      const items = e.clipboardData?.items;
+      if (!items) return;
+
+      // 检查是否有图片
+      for (let i = 0; i < items.length; i++) {
+        if (items[i].type.startsWith('image/')) {
+          e.preventDefault();
+          const file = items[i].getAsFile();
+          if (file) {
+            handleFileChange(file);
+            showMessage(t('qrCode:imagePasted'), { severity: 'success', autoHideDuration: 1000 });
+          }
+          return;
+        }
+      }
+
+      // 检查是否有 Base64 字符串
+      const text = e.clipboardData?.getData('text/plain');
+      if (text && text.startsWith('data:image/')) {
+        e.preventDefault();
+        try {
+          // 将 Base64 转换为 File
+          const response = await fetch(text);
+          const blob = await response.blob();
+          const file = new File([blob], 'pasted-image.png', { type: blob.type });
+          handleFileChange(file);
+          showMessage(t('qrCode:imagePasted'), { severity: 'success', autoHideDuration: 1000 });
+        } catch (error) {
+          console.error('处理 Base64 图片失败:', error);
+          showMessage(t('qrCode:imagePasteError'), { severity: 'error', autoHideDuration: 3000 });
+        }
+      }
+    };
+
+    document.addEventListener('paste', handlePaste);
+    return () => {
+      document.removeEventListener('paste', handlePaste);
+    };
+  }, [mode, handleFileChange, showMessage, t]);
+
   // 模式选项
   const modeOptions = [
     { value: 'generate' as QrCodeMode, label: t('qrCode:urlToQr') },
@@ -178,18 +257,6 @@ export default function Index() {
           showClear
           allowCopy
           externalError={generatorState.inputError}
-          actions={[
-            {
-              key: 'generate',
-              label: generatorState.generating
-                ? t('qrCode:generating')
-                : t('qrCode:generateButton'),
-              type: 'primary',
-              position: 'bottom',
-              disabled: (value) => !value || generatorState.generating,
-              onClick: (value) => generateQrCode(value),
-            },
-          ]}
           showMessage={showMessage}
         />
       );
@@ -198,15 +265,7 @@ export default function Index() {
     return (
       <ImageUploader
         selectedFile={parserState.selectedFile}
-        onFileChange={(file) => {
-          setParserState((prev) => ({
-            ...prev,
-            selectedFile: file,
-            previewUrl: URL.createObjectURL(file),
-            decodedResult: '',
-            parseError: '',
-          }));
-        }}
+        onFileChange={handleFileChange}
         onClearFile={handleClearFile}
         previewUrl={parserState.previewUrl}
         onPreviewUrlChange={(url) => setParserState((prev) => ({ ...prev, previewUrl: url }))}
diff --git a/utils/useDebounce.ts b/utils/useDebounce.ts
new file mode 100644
index 0000000..e9a70ac
--- /dev/null
+++ b/utils/useDebounce.ts
@@ -0,0 +1,24 @@
+import { useState, useEffect } from 'react';
+
+/**
+ * useDebounce Hook - 防抖值
+ *
+ * @param value - 需要防抖的值
+ * @param delay - 延迟时间（毫秒）
+ * @returns 防抖后的值
+ */
+export function useDebounce<T>(value: T, delay: number): T {
+  const [debouncedValue, setDebouncedValue] = useState<T>(value);
+
+  useEffect(() => {
+    const timer = setTimeout(() => {
+      setDebouncedValue(value);
+    }, delay);
+
+    return () => {
+      clearTimeout(timer);
+    };
+  }, [value, delay]);
+
+  return debouncedValue;
+}