diff --git a/pkgs/applications/networking/browsers/firefox/common.nix b/pkgs/applications/networking/browsers/firefox/common.nix
index 80ba8f6c32e0..bd853b8fd10b 100644
--- a/pkgs/applications/networking/browsers/firefox/common.nix
+++ b/pkgs/applications/networking/browsers/firefox/common.nix
@@ -425,6 +425,7 @@ buildStdenv.mkDerivation {
     "--disable-updater"
     "--enable-application=${application}"
     "--enable-default-toolkit=${toolkit}"
+    "--with-app-name=${binaryName}"
     "--with-distribution-id=org.nixos"
     "--with-libclang-path=${lib.getLib llvmPackagesBuildBuild.libclang}/lib"
     "--with-wasi-sysroot=${wasiSysRoot}"
diff --git a/pkgs/applications/networking/browsers/firefox/packages/firefox-beta.nix b/pkgs/applications/networking/browsers/firefox/packages/firefox-beta.nix
index dc2aad33c03a..131820b3164b 100644
--- a/pkgs/applications/networking/browsers/firefox/packages/firefox-beta.nix
+++ b/pkgs/applications/networking/browsers/firefox/packages/firefox-beta.nix
@@ -9,6 +9,7 @@
 
 buildMozillaMach rec {
   pname = "firefox-beta";
+  binaryName = pname;
   version = "135.0b9";
   applicationName = "Mozilla Firefox Beta";
   src = fetchurl {
@@ -27,7 +28,7 @@ buildMozillaMach rec {
     # not in `badPlatforms` because cross-compilation on 64-bit machine might work.
     maxSilent = 14400; # 4h, double the default of 7200s (c.f. #129212, #129115)
     license = lib.licenses.mpl20;
-    mainProgram = "firefox";
+    mainProgram = binaryName;
   };
   tests = {
     inherit (nixosTests) firefox-beta;
diff --git a/pkgs/applications/networking/browsers/firefox/packages/firefox-devedition.nix b/pkgs/applications/networking/browsers/firefox/packages/firefox-devedition.nix
index ae63bc7d9d87..e44a8c40e6d1 100644
--- a/pkgs/applications/networking/browsers/firefox/packages/firefox-devedition.nix
+++ b/pkgs/applications/networking/browsers/firefox/packages/firefox-devedition.nix
@@ -9,6 +9,7 @@
 
 buildMozillaMach rec {
   pname = "firefox-devedition";
+  binaryName = pname;
   version = "135.0b9";
   applicationName = "Mozilla Firefox Developer Edition";
   requireSigning = false;
@@ -29,7 +30,7 @@ buildMozillaMach rec {
     # not in `badPlatforms` because cross-compilation on 64-bit machine might work.
     maxSilent = 14400; # 4h, double the default of 7200s (c.f. #129212, #129115)
     license = lib.licenses.mpl20;
-    mainProgram = "firefox";
+    mainProgram = binaryName;
   };
   tests = {
     inherit (nixosTests) firefox-devedition;
diff --git a/pkgs/applications/networking/browsers/floorp/default.nix b/pkgs/applications/networking/browsers/floorp/default.nix
index 0d09dc95738c..809270d4248a 100644
--- a/pkgs/applications/networking/browsers/floorp/default.nix
+++ b/pkgs/applications/networking/browsers/floorp/default.nix
@@ -28,7 +28,6 @@
     };
 
     extraConfigureFlags = [
-      "--with-app-name=${pname}"
       "--with-app-basename=${applicationName}"
       "--with-unsigned-addon-scopes=app,system"
       "--enable-proxy-bypass-protection"
diff --git a/pkgs/applications/networking/browsers/librewolf/librewolf.nix b/pkgs/applications/networking/browsers/librewolf/librewolf.nix
index 9ca55de722c8..b7d80bfdd221 100644
--- a/pkgs/applications/networking/browsers/librewolf/librewolf.nix
+++ b/pkgs/applications/networking/browsers/librewolf/librewolf.nix
@@ -9,7 +9,6 @@ rec {
   extraPatches = [ "${source}/patches/pref-pane/pref-pane-small.patch" ];
 
   extraConfigureFlags = [
-    "--with-app-name=librewolf"
     "--with-unsigned-addon-scopes=app,system"
   ];
 
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index a6867e25b744..af6e28b872d3 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -13407,16 +13407,10 @@ with pkgs;
 
   firefox = wrapFirefox firefox-unwrapped { };
   firefox-beta = wrapFirefox firefox-beta-unwrapped {
-    nameSuffix = "-beta";
     desktopName = "Firefox Beta";
-    wmClass = "firefox-beta";
-    icon = "firefox-beta";
   };
   firefox-devedition = wrapFirefox firefox-devedition-unwrapped {
-    nameSuffix = "-devedition";
     desktopName = "Firefox Developer Edition";
-    wmClass = "firefox-devedition";
-    icon = "firefox-devedition";
   };
 
   firefox-mobile = callPackage ../applications/networking/browsers/firefox/mobile-config.nix { };