diff --git a/app/build.sh b/app/build.sh
index 033ecca6f1..01b965effb 100755
--- a/app/build.sh
+++ b/app/build.sh
@@ -246,7 +246,6 @@ set -e
 cd $omni_dir
 # Move some Firefox files that would be overwritten out of the way
 mv chrome.manifest chrome.manifest-fx
-mv components components-fx
 mv defaults defaults-fx
 
 # Extract Zotero files
@@ -262,13 +261,6 @@ else
 	rsync -a $rsync_params "$SOURCE_DIR/" ./
 fi
 
-#
-# Merge preserved files from Firefox
-#
-# components
-rmdir components
-mv components-fx components
-
 mv defaults defaults-z
 mv defaults-fx defaults
 prefs_file=defaults/preferences/zotero.js