diff --git a/pkgs/by-name/li/librewolf-unwrapped/librewolf.nix b/pkgs/by-name/li/librewolf-unwrapped/librewolf.nix
index 1e3bf61a2e63..dca96ea94fb5 100644
--- a/pkgs/by-name/li/librewolf-unwrapped/librewolf.nix
+++ b/pkgs/by-name/li/librewolf-unwrapped/librewolf.nix
@@ -24,6 +24,10 @@ rec {
     "--enable-lto=thin,cross"
   ];
 
+  extraPreConfigure = ''
+    export MOZ_TELEMETRY_REPORTING=
+  '';
+
   extraPostPatch = ''
     while read patch_name; do
       echo "applying LibreWolf patch: $patch_name"
diff --git a/pkgs/by-name/li/librewolf-unwrapped/package.nix b/pkgs/by-name/li/librewolf-unwrapped/package.nix
index 2dcab94afe52..86076f9126aa 100644
--- a/pkgs/by-name/li/librewolf-unwrapped/package.nix
+++ b/pkgs/by-name/li/librewolf-unwrapped/package.nix
@@ -20,6 +20,7 @@ in
   branding = "browser/branding/librewolf";
   inherit (librewolf-src)
     extraConfigureFlags
+    extraPreConfigure
     extraPatches
     extraPostPatch
     extraPassthru