diff --git a/package.accept_keywords/firefox b/package.accept_keywords/firefox
index cbc9307..d677b6c 100644
--- a/package.accept_keywords/firefox
+++ b/package.accept_keywords/firefox
@@ -1,4 +1,4 @@
 www-client/firefox:rapid ~amd64
 
-dev-libs/nss ~amd64
-dev-libs/nspr ~amd64
+=dev-libs/nss-3.117 ~amd64
+=dev-libs/nspr-4.37 ~amd64
diff --git a/package.env/00compiler b/package.env/00compiler
index 430563d..7f364e3 100644
--- a/package.env/00compiler
+++ b/package.env/00compiler
@@ -1,9 +1,9 @@
 # */* clang-19 mold
-*/* clang mold lto-werror
+*/* clang-20 mold lto-werror
 
 sys-devel/gcc gcc
 
-sys-kernel/gentoo-kernel clang lld no-lto
+sys-kernel/gentoo-kernel clang-19 lld no-lto
 sys-kernel/gentoo-kernel-bin lld no-lto
 # sys-kernel/* no-lto
 
@@ -17,63 +17,48 @@ sys-libs/glibc no-lto
 sys-devel/binutils gcc
 sys-libs/binutils-libs gcc no-lto
 
-sys-libs/ncurses no-lto
-sys-libs/readline no-lto
 
 app-arch/unzip gcc no-lto
 app-arch/tar gcc no-lto
 
 
-# dev-libs/libvterm gcc
+dev-libs/libvterm gcc
+dev-libs/libtermkey gcc
 dev-libs/libtomcrypt no-lto
-dev-libs/libgudev no-lto
+dev-libs/libgudev gcc no-lto
 
-# media-gfx/sam2p gcc
+media-gfx/sam2p gcc
 
 
 dev-lang/ghc gcc no-lto
 app-admin/haskell-updater gcc
 dev-haskell/* gcc
 
-# dev-lang/perl gcc
-# dev-perl/* gcc
-# perl-core/* gcc
+dev-lang/perl gcc
+dev-perl/* gcc
+perl-core/* gcc
 
-# dev-ml/* gcc no-lto
+dev-ml/* gcc no-lto
 
 sci-libs/lapack gcc
-sci-libs/flexiblas gcc
-
-# sci-libs/fftw gcc
+sci-libs/fftw gcc
 
 
 dev-qt/qtcore no-lto
 
 
-# gui-libs/gtk lld
+gui-libs/gtk lld
 www-client/chromium lld
 net-libs/nodejs lld
 
 dev-lang/nim no-lto
 
-# app-crypt/seahorse gcc
+app-crypt/seahorse gcc
 
-# dev-scheme/racket gcc
+dev-scheme/racket gcc
 
-# dev-python/zstandard gcc
+dev-python/zstandard gcc
 
-# gui-apps/waybar gcc
+gui-apps/waybar gcc
 
 media-gfx/darktable no-lto
-
-# media-video/ffmpeg no-lto
-
-# dev-qt/qtdeclarative clang-20
-
-dev-lang/zig clang lld no-lto
-
-llvm-core/llvm:19 clang-19
-llvm-core/clang:19 clang-19
-llvm-core/lld:19 clang-19
-
-dev-lang/pypy gcc