firefox: fix browserpass/native-messaging-hosts integration

hosts/common/programs/firefox/browserpass.nix

@@ -43,6 +43,10 @@ in
       "knowledge/secrets/accounts"
     ];
 
+    # firefox learns about this package by looking in ~/.mozilla/native-messaging-hosts
+    fs.".mozilla/native-messaging-hosts/com.github.browserpass.native.json".symlink.target
+      = "${browserpass}//lib/mozilla/native-messaging-hosts/com.github.browserpass.native.json";
+
     # TODO: env.PASSWORD_STORE_DIR only needs to be present within the browser session.
     # alternative to PASSWORD_STORE_DIR:
     # fs.".password-store".symlink.target = "knowledge/secrets/accounts";

hosts/common/programs/firefox/default.nix

@@ -16,7 +16,9 @@ let
       cfg.addons
   );
   addonSuggestedPrograms = lib.map (n: config.sane.programs."${n}") addonSuggestedProgramNames;
-  addonHomePaths = lib.concatMap (p: p.sandbox.extraHomePaths) (addonSuggestedPrograms ++ nativeMessagingPrograms);
+  addonHomePaths = lib.concatMap
+    (p: p.sandbox.extraHomePaths ++ builtins.attrNames p.fs)
+    (addonSuggestedPrograms ++ nativeMessagingPrograms);
 
   packageUnwrapped = let
     unwrapped = pkgs.firefox-unwrapped // {
@@ -29,7 +31,8 @@ let
     # inherit the default librewolf.cfg
     # it can be further customized via ~/.librewolf/librewolf.overrides.cfg
     libName = "firefox";
-    inherit nativeMessagingHosts;
+    # XXX(2025-08-26): nativeMessagingHosts wrapping is broken! put things in ~/.mozilla/native-messaging-hosts/ instead.
+    # inherit nativeMessagingHosts;
 
     nixExtensions = lib.concatMap (ext: lib.optional ext.enable ext.package) (builtins.attrValues cfg.addons);