Index: sbbs.el
==================================================================
--- sbbs.el
+++ sbbs.el
@@ -510,10 +510,17 @@
             (goto-char (point-min))))))))
 
 
 ;;; INTERACTIVE FUNCTIONS
 
+(defun sbbs-open-externally ()
+  "Open the current thread using `browse-url'."
+  (interactive)
+  (unless sbbs--thread-id
+    (user-error "No thread to open"))
+  (browse-url (sbbs--board-url sbbs--thread-id)))
+
 (defun sbbs-show-all ()
   "Show all hidden posts."
   (interactive)
   (sbbs-show-pop -1))