diff --git a/install/user/all.sh b/install/user/all.sh
index 1da564d4..39d98ea5 100644
--- a/install/user/all.sh
+++ b/install/user/all.sh
@@ -1,4 +1,5 @@
 run_logged "$OMARCHY_INSTALL/user/theme.sh"
+run_logged "$OMARCHY_INSTALL/user/chromium.sh"
 run_logged "$OMARCHY_INSTALL/user/git.sh"
 run_logged "$OMARCHY_INSTALL/user/xcompose.sh"
 run_logged "$OMARCHY_INSTALL/user/mise-work.sh"
diff --git a/install/user/chromium.sh b/install/user/chromium.sh
new file mode 100644
index 00000000..a5b29adb
--- /dev/null
+++ b/install/user/chromium.sh
@@ -0,0 +1,6 @@
+# Chromium ships in the base packages, so it never goes through
+# omarchy-install-browser, and fresh installs mark every migration as already
+# applied. Without this, the bundled extensions load but have no native
+# messaging host to talk to.
+omarchy-install-chromium-copy-url
+omarchy-install-chromium-ytdlp
diff --git a/migrations/1785166747.sh b/migrations/1785166747.sh
new file mode 100644
index 00000000..3688e094
--- /dev/null
+++ b/migrations/1785166747.sh
@@ -0,0 +1,6 @@
+echo "Register the native messaging hosts for the bundled Chromium extensions"
+
+# Fresh installs stamped 1780517689 and 1784763917 as applied without running
+# them, so the bundled extensions loaded with no host to talk to.
+omarchy-install-chromium-copy-url
+omarchy-install-chromium-ytdlp
diff --git a/test/shell.d/chromium-copy-url-test.sh b/test/shell.d/chromium-copy-url-test.sh
index 4b3fcbf0..85929946 100644
--- a/test/shell.d/chromium-copy-url-test.sh
+++ b/test/shell.d/chromium-copy-url-test.sh
@@ -69,6 +69,20 @@ jq -e --arg path "$ROOT/bin/omarchy-chromium-copy-url-host" '
 ' "$native_manifest" >/dev/null || fail "copy-url native host manifest uses Omarchy host path and extension id"
 pass "copy-url native host installer registers the stable extension id"
 
+# Chromium ships in the base packages, so it never goes through
+# omarchy-install-browser, and a first install marks every migration as already
+# applied. The user install has to register the host itself.
+grep -q 'user/chromium.sh' "$ROOT/install/user/all.sh" ||
+  fail "user install runs the Chromium native messaging host setup"
+
+fresh_home="$TMPDIR/fresh-install"
+HOME="$fresh_home" OMARCHY_PATH="$ROOT" PATH="$ROOT/bin:$PATH" \
+  bash -euo pipefail -c 'source "$ROOT/install/user/chromium.sh"'
+
+[[ -f $fresh_home/.config/chromium/NativeMessagingHosts/com.omarchy.copy_url.json ]] ||
+  fail "fresh install registers the copy-url native messaging host"
+pass "fresh install registers the copy-url native messaging host"
+
 copied_url=$(bash -c '
   source "$1"
   wl-copy() { cat; }