firefox: build in 32-bit systems

Disabling "-g" and LTO so there aren't memory problems.

pkgs/applications/networking/browsers/firefox/common.nix

@@ -23,7 +23,7 @@
 , ffmpegSupport ? true
 , gtk3Support ? true, gtk2, gtk3, wrapGAppsHook
 , waylandSupport ? true, libxkbcommon
-, ltoSupport ? stdenv.isLinux, overrideCC, buildPackages
+, ltoSupport ? (stdenv.isLinux && stdenv.is64bit), overrideCC, buildPackages
 , gssSupport ? true, kerberos
 , pipewireSupport ? waylandSupport && webrtcSupport, pipewire
 
@@ -111,6 +111,13 @@ let
                 else stdenv;
 
   nss_pkg = if lib.versionOlder ffversion "83" then nss_3_53 else nss;
+
+  # --enable-release adds -ffunction-sections & LTO that require a big amount of
+  # RAM and the 32-bit memory space cannot handle that linking
+  # We also disable adding "-g" for easier linking
+  releaseFlags = if stdenv.is32bit
+                 then [ "--disable-release" "--disable-debug-symbols" ]
+                 else [ "--enable-release" ];
 in
 
 buildStdenv.mkDerivation ({
@@ -296,9 +303,9 @@ buildStdenv.mkDerivation ({
   ++ lib.optional drmSupport "--enable-eme=widevine"
 
   ++ (if debugBuild then [ "--enable-debug" "--enable-profiling" ]
-                    else [ "--disable-debug" "--enable-release"
+                    else ([ "--disable-debug"
                            "--enable-optimize"
-                           "--enable-strip" ])
+                           "--enable-strip" ] ++ releaseFlags))
   ++ lib.optional enableOfficialBranding "--enable-official-branding"
   ++ extraConfigureFlags;