--- a/mail/messenger/messengercompose/messengercompose.ftl
+++ b/mail/messenger/messengercompose/messengercompose.ftl
@@ -237,16 +237,23 @@ encrypted-bcc-ignore-button = 好的
 compose-tool-button-remove-text-styling =
     .tooltiptext = 移除文本样式
 
 ## FileLink
 
 
 # Template
 
+# A line of text describing how many uploaded files have been appended to this
+# message. Emphasis should be on sharing as opposed to attaching. This item is
+# used as a header to a list, hence the colon.
+cloud-file-count-header =
+    { $count ->
+       *[other] 我已将 { $count } 个文件的链接附至此邮件：
+    }
 # A text used in a footer, instructing the reader where to find additional
 # information about the used service providers.
 cloud-file-service-provider-footer =
     { $count ->
         [one] 详细了解 { $lastLink }。
        *[other] 详细了解 { $firstLinks } 和 { $lastLink }。
     }
 # Tooltip for an icon, indicating that the link is protected by a password.