diff --git a/doc/md/Firefox-share.md b/doc/md/Firefox-share.md
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@@ -1,3 +1,6 @@
+| Note | Firefox Share is no longer available for Firefox 57 and later versions. |
+|---------|---------|
+
 ### Add Shaarli as a sharing service to Firefox
 
 - Open your Shaarli and `Login`