diff --git a/fff b/fff
index 817042c..1fb41ee 100755
--- a/fff
+++ b/fff
@@ -147,7 +147,11 @@ get_w3m_path() {
 
 get_mime_type() {
     # Get a file's mime_type.
-    mime_type=$(file "-${file_flags:-biL}" "$1" 2>/dev/null)
+    if command -v mimetype &>/dev/null; then
+        mime_type=$(mimetype "-${file_flags:-biL}" "$1" 2>/dev/null)
+    else
+        mime_type=$(file "-${file_flags:-biL}" "$1" 2>/dev/null)
+    fi
 }
 
 status_line() {
@@ -591,7 +595,7 @@ open() {
         # Open all text-based files in '$EDITOR'.
         # Everything else goes through 'xdg-open'/'open'.
         case "$mime_type" in
-            text/*|*x-empty*|*json*)
+            text/*|*x-empty*|*x-shellscript*|*json*)
                 # If 'fff' was opened as a file picker, save the opened
                 # file in a file called 'opened_file'.
                 ((file_picker == 1)) && {