Give a try to ebook-viewer.
--- a/.config/mc/mc.ext Mon Apr 11 19:03:17 2016 +0300
+++ b/.config/mc/mc.ext Mon Apr 11 22:23:15 2016 +0300
@@ -194,13 +194,13 @@
shell/.djvu
Open=evince %f 2>/dev/null &
shell/.fb2
- Open=fbreader %f 2>/dev/null &
+ Open=ebook-viewer %f 2>/dev/null &
shell/.epub
- Open=fbreader %f 2>/dev/null &
+ Open=ebook-viewer %f 2>/dev/null &
shell/.mobi
- Open=fbreader %f 2>/dev/null &
+ Open=ebook-viewer %f 2>/dev/null &
regex/\.([rR][tT][fF])$
- Open=fbreader %f 2>/dev/null &
+ Open=ebook-viewer %f 2>/dev/null &
View=%view{ascii} catdoc -w %f
regex/\.[sS]?[hH][tT][mM][lL]?$