diff --git a/server-core/src/main/java/io/onedev/server/web/page/project/blob/render/renderers/source/SourceFormComponent.html b/server-core/src/main/java/io/onedev/server/web/page/project/blob/render/renderers/source/SourceFormComponent.html
index 2b8f253846..fffe36bfd0 100644
--- a/server-core/src/main/java/io/onedev/server/web/page/project/blob/render/renderers/source/SourceFormComponent.html
+++ b/server-core/src/main/java/io/onedev/server/web/page/project/blob/render/renderers/source/SourceFormComponent.html
@@ -1,5 +1,7 @@
 <wicket:panel>
-	<div class="source-edit autofit blob-submit-aware">
+	<!-- Make it no-autofocus as we will do focus with CodeMirror. Also this is necessary to fix the issue that 
+		file name input loses focus when add file via firefox in Linux -->
+	<div class="source-edit autofit blob-submit-aware no-autofocus">
 		<div class="warning alert alert-warning">
 			<button class="close" data-dismiss="alert"><span>&times;</span></button>
 			<div class="message"><i class="fa fa-warning"></i> Below content is restored from an unsaved change</div>