diff --git a/toolkit/content/devicestorage.properties b/toolkit/content/devicestorage.properties
index e25f0048f4d1..776b93b6e78c 100644
--- a/toolkit/content/devicestorage.properties
+++ b/toolkit/content/devicestorage.properties
@@ -1,4 +1,4 @@
 # Extensions we recognize for DeviceStorage storage areas
 pictures=*.jpe; *.jpg; *.jpeg; *.gif; *.png; *.bmp;
 music=*.mp3; *.ogg; *.m4a; *.m4b; *.m4p; *.m4v; *.m4r; *.3gp; *.mp4; *.aac; *.m3u; *.pls;
-videos=*.mp4; *.mpeg; *.mpg; *.ogv; *.ogx; *.webm; *.3gp; *.ogg;
+videos=*.avi; *.divx; *.flv; *.m4v; *.mkv; *.mov; *.mp4; *.mpeg; *.mpg; *.ogm; *.ogv; *.ogx; *.rm; *.rmvb; *.smil; *.webm; *.wmv; *.xvid; *.3gp; *.ogg;