3 files changed, 6 insertions, 3 deletions
diff --git a/Completion/Unix/Command/_sysctl b/Completion/Unix/Command/_sysctl
index bda6a5ac2..2198d1b8a 100644
--- a/Completion/Unix/Command/_sysctl
+++ b/Completion/Unix/Command/_sysctl
@@ -13,8 +13,8 @@ case $OSTYPE in
       '(-o)-x[show opaques as well (entire values)]' \
       '(-a)*:sysctl variable:_multi_parts -i . sysctlvars'
   ;;
-  freebsd[0-4].*)
-    : ${(A)_cache_sysctlvars:=${${$(sysctl -A):#[^a-z]*}%%:*}}
+  freebsd[0-4].*|darwin*)
+    : ${(A)_cache_sysctlvars:=${${$(sysctl -A 2>/dev/null):#[^a-z]*}%%:*}}
     _arguments -s -A "-*" \
       '(-w -X *)-a[list all]' \
       '(-w -X *)-A[show all opaques (values suppressed)]' \
diff --git a/Completion/Unix/Command/_user_admin b/Completion/Unix/Command/_user_admin
index 5b467ab18..bf0908372 100644
--- a/Completion/Unix/Command/_user_admin
+++ b/Completion/Unix/Command/_user_admin
@@ -19,7 +19,7 @@ if [[ $service = user* ]]; then
     '(-D)-f+[specify inactive days]:inactive days'
     '(-D)-g+[initial group]:initial group:_groups'
     '(-D)-G+[supplementary groups]:supplementary groups:_groups -S,'
-    "(-D)-s+[shell]:shell:( $shells /dev/null )"
+    "(-D)-s+[shell]:shell:( $shells /bin/false )"
     '(-D -M)-m[create home directory]'
     '(-D)-u[uid]:uid'
     '(-D)-o[allow non unique uid]'
diff --git a/Completion/Unix/Command/_webbrowser b/Completion/Unix/Command/_webbrowser
new file mode 100644
index 000000000..b0e6b1c21
--- /dev/null
+++ b/Completion/Unix/Command/_webbrowser
@@ -0,0 +1,3 @@
+#compdef amaya arena chimera express grail gzilla hotjava mmm mozilla opera www xmosaic Mosaic galeon
+
+_urls -f