diff --git a/Easydict/App/EZConst.h b/Easydict/App/EZConst.h
index 75e130c93..e15575068 100644
--- a/Easydict/App/EZConst.h
+++ b/Easydict/App/EZConst.h
@@ -42,7 +42,7 @@ static NSTimeInterval const EZUpdateTableViewRowHeightAnimationDuration = 0.2;
 static NSTimeInterval const EZNetWorkTimeoutInterval = 15.0;
 
 // !!!: This floating window level shouldn't be higher than kCGModalPanelWindowLevel, otherwise it will cover system modal alert window.
-static NSTimeInterval const EZFloatingWindowLevel = kCGModalPanelWindowLevel;
+static CGFloat const EZFloatingWindowLevel = kCGModalPanelWindowLevel;
 
 static NSInteger const EZEnglishWordMaxLength = 20;
 
@@ -52,5 +52,7 @@ static NSInteger const EZMaxThreeWordPhraseCount = 3;
 /// Show word synonyms up to 5
 static NSInteger const EZMaxFiveWordSynonymCount = 5;
 
+static CGFloat const EZGetClipboardTextDelayTime = 0.1;
+
 
 #endif /* EZConst_h */
diff --git a/Easydict/Feature/EventMonitor/EZEventMonitor.m b/Easydict/Feature/EventMonitor/EZEventMonitor.m
index 8e5f3304e..e82fc80f4 100644
--- a/Easydict/Feature/EventMonitor/EZEventMonitor.m
+++ b/Easydict/Feature/EventMonitor/EZEventMonitor.m
@@ -455,7 +455,7 @@ - (void)getSelectedTextBySimulatedKey:(void (^)(NSString *_Nullable))completion
             [self delayRecoverVolume];
         }
         
-        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(kDelayGetSelectedTextTime * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
+        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(EZGetClipboardTextDelayTime * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
             NSInteger newChangeCount = [pasteboard changeCount];
             // If changeCount is equal to newChangeCount, it means that the copy value is nil.
             if (changeCount == newChangeCount) {
diff --git a/Easydict/Feature/Utility/SystemUtility/EZSystemUtility.m b/Easydict/Feature/Utility/SystemUtility/EZSystemUtility.m
index 633cc6662..49e178d44 100644
--- a/Easydict/Feature/Utility/SystemUtility/EZSystemUtility.m
+++ b/Easydict/Feature/Utility/SystemUtility/EZSystemUtility.m
@@ -28,6 +28,10 @@ + (void)postCopyEvent {
 }
 
 + (void)postPasteEvent {
+    // Disable local keyboard events while pasting.
+    CGEventSourceRef source = CGEventSourceCreate(kCGEventSourceStateCombinedSessionState);
+    CGEventSourceSetLocalEventsFilterDuringSuppressionState(source, kCGEventFilterMaskPermitLocalMouseEvents | kCGEventFilterMaskPermitSystemDefinedEvents, kCGEventSuppressionStateSuppressionInterval);
+
     [self postKeyboardEvent:kCGEventFlagMaskCommand virtualKey:kVK_ANSI_V keyDown:true];
     [self postKeyboardEvent:kCGEventFlagMaskCommand virtualKey:kVK_ANSI_V keyDown:false];
 }
diff --git a/Easydict/Feature/ViewController/View/CustomButton/EZReplaceTextButton/EZReplaceTextButton.m b/Easydict/Feature/ViewController/View/CustomButton/EZReplaceTextButton/EZReplaceTextButton.m
index 7836f750a..749219256 100644
--- a/Easydict/Feature/ViewController/View/CustomButton/EZReplaceTextButton/EZReplaceTextButton.m
+++ b/Easydict/Feature/ViewController/View/CustomButton/EZReplaceTextButton/EZReplaceTextButton.m
@@ -1,6 +1,6 @@
 //
 //  EZReplaceTextButton.m
-//  
+//
 //
 //  Created by tisfeng on 2023/10/13.
 //
@@ -40,7 +40,7 @@ - (void)replaceSelectedText:(NSString *)replacementString {
     NSRunningApplication *app = NSWorkspace.sharedWorkspace.frontmostApplication;
     NSString *bundleID = app.bundleIdentifier;
     NSString *textLengthRange = [EZLog textLengthRange:replacementString];
-
+    
     NSDictionary *parameters = @{
         @"floating_window_type" : @(EZWindowManager.shared.floatingWindowType),
         @"app_name" : app.localizedName,
@@ -51,11 +51,8 @@ - (void)replaceSelectedText:(NSString *)replacementString {
     
     EZAppleScriptManager *appleScriptManager = [EZAppleScriptManager shared];
     if ([appleScriptManager isKnownBrowser:bundleID]) {
-        [appleScriptManager replaceBrowserSelectedText:replacementString bundleID:bundleID completion:^(NSString * _Nullable result, NSError * _Nullable error) {
-            if (error) {
-                [self replaceSelectedTextByKey:replacementString];
-            }
-        }];
+        // Since browser environment is complex, use AppleScript to replace text may fail, so use key event to replace text.
+        [self replaceSelectedTextByKey:replacementString];
     } else {
         [self replaceSelectedTextByAccessibility:replacementString];
     }
@@ -87,11 +84,15 @@ - (void)replaceSelectedTextByKey:(NSString *)replacementString {
     MMLogInfo(@"Use Cmd+V to replace selected text, App: %@", app.localizedName);
     
     NSString *lastText = [EZSystemUtility getLastPasteboardText];
-
-    [replacementString copyToPasteboard];    
-    [EZSystemUtility postPasteEvent];
+    [replacementString copyToPasteboard];
     
-    [lastText copyToPasteboard];
+    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(EZGetClipboardTextDelayTime * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
+        [EZSystemUtility postPasteEvent];
+        
+        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(EZGetClipboardTextDelayTime * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
+            [lastText copyToPasteboard];
+        });
+    });
 }
 
 @end