diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index b8a804f9aaa1..cbff3f6cb8dd 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -670,6 +670,8 @@ mapAliases ({
   rxvt_unicode-with-plugins = rxvt-unicode; # added 2020-02-02
   rxvt_unicode = rxvt-unicode-unwrapped; # added 2020-02-02
   subversion19 = throw "subversion19 has been removed as it has reached its end of life"; # added 2021-03-31
+  thunderbird-68 = throw "Thunderbird 68 reached end of life with its final release 68.12.0 on 2020-08-25 and was therefore removed from nixpkgs";
+  thunderbird-bin-68 = throw "Thunderbird 68 reached end of life with its final release 68.12.0 on 2020-08-25 and was therefore removed from nixpkgs";
   togglesg-download = throw "togglesg-download was removed 2021-04-30 as it's unmaintained";
   urxvt_autocomplete_all_the_things = rxvt-unicode-plugins.autocomplete-all-the-things; # added 2020-02-02
   urxvt_perl = rxvt-unicode-plugins.perl; # added 2020-02-02