Update for Mutt 2.2.9 from Debian 12.
macro index,pager V "v/text/html<Enter>V" \
"View the 1st html attachment in a web browser"
-macro attach V "<save-entry>~/tmp/_xxx.html<Enter><shell-escape>webbrowser -n ~/tmp/_xxx.html; exec rm ~/tmp/_xxx.html<Enter><exit>" \
+macro attach V "<save-entry>~/tmp/_xxx.html<Enter>n<shell-escape>webbrowser -n ~/tmp/_xxx.html; exec rm ~/tmp/_xxx.html<Enter><exit>" \
"View html attachment in a web browser"
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