diff --git a/README.md b/README.md
index 11f3eb0..233cc6d 100644
--- a/README.md
+++ b/README.md
@@ -27,6 +27,7 @@ This plugin allows you to preview links by dragging them and search selected tex
 - Customizable popup window size.
 - Popups can appear near the mouse cursor or centered.(supports multi-monitors)
 - Blacklist supports regular expressions, wildcards, and plain text.
+- Follow system dark/light mode.
 
 # Screenshots
 ## Firefox