--- mc-4.8.21/misc/mc.ext.in~	2018-05-27 21:56:21.000000000 +0200
+++ mc-4.8.21/misc/mc.ext.in	2018-06-13 23:35:38.484935556 +0200
@@ -657,7 +657,7 @@
 	Open=@EXTHELPERSDIR@/doc.sh open comic
 
 # Epub & mobi
-regex/i/\.(epub|mobi)$
+regex/i/\.(epub|mobi|lrf|lrs|azw[123]?|pobi|lit|fb2)$
 	Open=@EXTHELPERSDIR@/doc.sh open epub
 	View=%view{ascii} @EXTHELPERSDIR@/doc.sh view epub