diff --git a/flake.lock b/flake.lock
index 52a1d49..5ad1b31 100644
--- a/flake.lock
+++ b/flake.lock
@@ -997,6 +997,21 @@
         "type": "github"
       }
     },
+    "nixpkgs-mozilla": {
+      "locked": {
+        "lastModified": 1774550046,
+        "narHash": "sha256-sgbaoy4molgqDLS24CmycN5v4b9FKt0YtALkfVhCWps=",
+        "owner": "mozilla",
+        "repo": "nixpkgs-mozilla",
+        "rev": "58356aa021c5d2f53958c3405e0ce4b8ea3dca44",
+        "type": "github"
+      },
+      "original": {
+        "owner": "mozilla",
+        "repo": "nixpkgs-mozilla",
+        "type": "github"
+      }
+    },
     "nixpkgs-r": {
       "locked": {
         "lastModified": 1773964973,
@@ -1362,11 +1377,11 @@
         "treefmt-nix": "treefmt-nix_2"
       },
       "locked": {
-        "lastModified": 1777773024,
-        "narHash": "sha256-pLU+KB84A0Jei/vTD6pOS4Ovkmq3QDfPQHg1MlKsRqM=",
+        "lastModified": 1778377995,
+        "narHash": "sha256-uUzHDHqQF1rdVNiTa05L0mML3/d7fpbAShjCRWxbrBQ=",
         "owner": "noctalia-dev",
         "repo": "noctalia-qs",
-        "rev": "d3e26ccd9eecde9139be00caf5dc2d4260fb31ee",
+        "rev": "d8327a723eed6dd9aebe8e0b162126f390e827df",
         "type": "github"
       },
       "original": {
@@ -1383,11 +1398,11 @@
         "noctalia-qs": "noctalia-qs"
       },
       "locked": {
-        "lastModified": 1778104114,
-        "narHash": "sha256-+tbqLv7IW5Aem8kGF6cp4n3MtNBcwqmuGlMt6S1kQjs=",
+        "lastModified": 1778830602,
+        "narHash": "sha256-5HKL37GkJNRHsU8GS38UshBY7UyvTOQim2L4quSYGfE=",
         "owner": "noctalia-dev",
         "repo": "noctalia-shell",
-        "rev": "eb2b53ddaa7564f5c93031cbe65cd5b6ef3c12a9",
+        "rev": "13964255121d100a7306e76a28010f19e8b33a1a",
         "type": "github"
       },
       "original": {
@@ -1685,6 +1700,7 @@
         "nixGL": "nixGL",
         "nixd": "nixd",
         "nixpkgs": "nixpkgs_13",
+        "nixpkgs-mozilla": "nixpkgs-mozilla",
         "nixpkgs-r": "nixpkgs-r",
         "nixpkgs-stable": "nixpkgs-stable_2",
         "nixpkgs-wayland": "nixpkgs-wayland",
diff --git a/flake.nix b/flake.nix
index 720bd9b..a03a3a7 100644
--- a/flake.nix
+++ b/flake.nix
@@ -107,5 +107,6 @@
     awww.url = "git+https://codeberg.org/LGFae/awww";
     waydeeper.url = "github:EdenQwQ/waydeeper";
     hermes-agent.url = "github:NousResearch/hermes-agent";
+    nixpkgs-mozilla.url = "github:mozilla/nixpkgs-mozilla";
   };
 }
diff --git a/home/programs/browser/firefox.nix b/home/programs/browser/firefox.nix
index 392e203..649c997 100644
--- a/home/programs/browser/firefox.nix
+++ b/home/programs/browser/firefox.nix
@@ -2,19 +2,20 @@
 {
   programs.firefox = {
     enable = true;
+    # package = pkgs.latest.firefox-nightly-bin;
     configPath = ".mozilla/firefox";
     profiles.default = {
       isDefault = true;
       settings = {
         "toolkit.legacyUserProfileCustomizations.stylesheets" = true;
         "browser.tabs.drawInTitlebar" = true;
-        "browser.tabs.groups.enabled" = true;
-        "browser.tabs.groups.smart.enabled" = true;
         "svg.context-properties.content.enabled" = true;
       };
     };
   };
-  stylix.targets.firefox.enable = true;
-  stylix.targets.firefox.firefoxGnomeTheme.enable = true;
-  stylix.targets.firefox.profileNames = [ "default" ];
+  stylix.targets.firefox = {
+    enable = true;
+    firefoxGnomeTheme.enable = true;
+    profileNames = [ "default" ];
+  };
 }
diff --git a/home/programs/desktop/niri/override-config.nix b/home/programs/desktop/niri/override-config.nix
index d31738e..47f1e92 100644
--- a/home/programs/desktop/niri/override-config.nix
+++ b/home/programs/desktop/niri/override-config.nix
@@ -15,6 +15,14 @@ let
               xray true
               blur true
           }
+          popups {
+              opacity 0.75
+              geometry-corner-radius 15
+              background-effect {
+                  xray false
+                  blur true
+              }
+          }
       }
       window-rule {
           match is-floating=true
diff --git a/overlays/default.nix b/overlays/default.nix
index 0840f9d..c74c188 100644
--- a/overlays/default.nix
+++ b/overlays/default.nix
@@ -43,4 +43,5 @@
   inherit (inputs.niri.overlays) niri;
   nur = inputs.nur.overlays.default;
   nix-matlab = inputs.nix-matlab.overlay;
+  inherit (inputs.nixpkgs-mozilla.overlays) firefox;
 }