diff --git a/i3/.config/i3/config b/i3/.config/i3/config
index 8ae4c77..ae810f3 100644
--- a/i3/.config/i3/config
+++ b/i3/.config/i3/config
@@ -195,7 +195,7 @@ bar {
 }
 
 # set background on startup
-exec --no-startup-id feh --bg-fill ~/Pictures/mountains2.jpg
+exec --no-startup-id feh --bg-fill ~/Pictures/mountains.jpg
 
 # turn picom on on start up
 exec_always --no-startup-id picom &
@@ -211,5 +211,4 @@ set $bd-color #ff004b
 client.focused $bd-color #111111 #ffffff $ffffff $ffffff
 
 # lock screen
-# bindsym $mod+l exec ~/lock.sh
-bindsym $mod+1 exec i3lock
+bindsym $mod+l exec ~/lock.sh
diff --git a/picom/.config/picom/picom.conf b/picom/.config/picom/picom.conf
index eba24d1..259e32e 100644
--- a/picom/.config/picom/picom.conf
+++ b/picom/.config/picom/picom.conf
@@ -152,7 +152,7 @@ focus-exclude = [ "class_g = 'Cairo-clock'" ];
 #    opacity-rule = [ "80:class_g = 'URxvt'" ];
 #
 # opacity-rule = []
-
+opacity-rule = [ "100:class_g = 'Firefox'"];
 
 #################################
 #     Background-Blurring       #