25.05: mako use settings instead of extraConfig

user/firefox.nix

@@ -1,10 +1,18 @@
 {
   config,
   pkgs,
+  lib,
   ...
 }:
 let
+  inherit (config.my) desktop;
   inherit (config.my.theme) color;
+
+  swayCustomization = ''
+    #titlebar { display: none !important; }
+    #TabsToolbar { display: none !important; }
+    #sidebar-header { display: none !important; }
+  '';
 in
 {
   config = {
@@ -19,6 +27,7 @@ in
           settings = {
             "devtools.theme" = "auto";
             "toolkit.legacyUserProfileCustomizations.stylesheets" = true;
+            "browser.tabs.inTitlebar" = if desktop == "sway" then 0 else 1;
             "sidebar.position_start" = false; # Move sidebar to the right
 
             # enable media RDD to allow gpu acceleration
@@ -48,6 +57,8 @@ in
             "devtools.debugger.remote-enabled" = true;
           };
           userChrome = ''
+            ${lib.optionalString (desktop == "sway") swayCustomization}
+
             #sidebar-main {
               background-color: ${color.bg};
             }

user/sway/mako.nix

@@ -38,7 +38,7 @@ in
         "app-name=volumesh" = {
           "default-timeout" = "5000";
           "group-by" = "app-name";
-          "format" = "<b>%s</b>\\n%b";
+          "format" = "<b>%s</b>\n%b";
         };
       };