diff --git a/hyprland/.config/hypr/conf/windowrules/default.conf b/hyprland/.config/hypr/conf/windowrules/default.conf
index aee6911..b9bab39 100644
--- a/hyprland/.config/hypr/conf/windowrules/default.conf
+++ b/hyprland/.config/hypr/conf/windowrules/default.conf
@@ -15,9 +15,12 @@ windowrulev2 = animation popin, class:floating
 windowrulev2 = opacity 0.8,class:^(Code)$
 
 # firefox rules :
-windowrulev2= float,class:^(Firefox|firefox)$,title:^(Library|Picture-in-Picture)$
-windowrulev2= animation popin,class:^(Firefox|firefox)$,title:^(Library|Picture-in-Picture)$
-windowrulev2 = size 800 450, class:^(Firefox|firefox)$, title:^(Picture-in-Picture)$
+windowrulev2= float,class:^(Firefox)$,title:^(Library|Picture-in-Picture)$
+windowrulev2= animation popin,class:^(Firefox)$,title:^(Library|Picture-in-Picture)$
+windowrulev2 = size 800 450, class:^(Firefox)$, title:^(Picture-in-Picture)$
+windowrulev2= size 70%,class:^(Firefox)$,title:^(Library)$
+windowrulev2 = opacity 0.8,class:^(Firefox)$,title:^(Library)$
+windowrulev2= center,class:^(Firefox)$,title:^(Library)$
 
 # telegram rules :
 windowrulev2= float,class:^(org.telegram.desktop|telegramdesktop)$,title:^(Media viewer)$