diff --git a/bin/omakub-theme-set b/bin/omakub-theme-set
index acdc35776..24531a1e3 100755
--- a/bin/omakub-theme-set
+++ b/bin/omakub-theme-set
@@ -62,6 +62,7 @@ omakub-theme-set-gnome
 omakub-theme-set-gnome-extensions
 omakub-theme-set-vscode
 omakub-theme-set-obsidian
+omakub-theme-set-browser
 
 # Call hook on theme set
-omakub-hook theme-set "$THEME_NAME" >/dev/null
\ No newline at end of file
+omakub-hook theme-set "$THEME_NAME" >/dev/null
diff --git a/bin/omakub-theme-set-browser b/bin/omakub-theme-set-browser
new file mode 100755
index 000000000..85dc8b36c
--- /dev/null
+++ b/bin/omakub-theme-set-browser
@@ -0,0 +1,120 @@
+#!/bin/bash
+
+# omakub:summary=Sync Omabuntu theme color to Chromium and Brave.
+# omakub:hidden=true
+
+# No managed policies. Running browsers must relaunch; closed browsers get a
+# prefs patch or a headless profile seed. Fixes #60.
+
+THEME_FILE="$HOME/.config/omakub/current/theme/chromium.theme"
+RGB="28,32,39"
+[[ -f $THEME_FILE ]] && RGB=$(tr -d '[:space:]' <"$THEME_FILE")
+[[ $RGB =~ ^[0-9]+,[0-9]+,[0-9]+$ ]] || exit 0
+
+patch_prefs() {
+  local prefs=$1
+  [[ -f $prefs ]] || return 0
+  python3 - "$prefs" "$RGB" <<'PY'
+import ctypes, json, sys
+path, rgb = sys.argv[1], sys.argv[2]
+r, g, b = map(int, rgb.split(","))
+sk = ctypes.c_int32((0xFF << 24) | (r << 16) | (g << 8) | b).value
+with open(path, encoding="utf-8") as f:
+  d = json.load(f)
+d.setdefault("autogenerated", {})["theme"] = {"color": sk}
+ext = d.setdefault("extensions", {}).setdefault("theme", {})
+ext["id"] = "autogenerated_theme_id"
+ext["system_theme"] = 0
+ext.pop("use_system", None)
+bt = d.setdefault("browser", {}).setdefault("theme", {})
+bt["user_color"] = sk
+bt["color_scheme"] = bt.get("color_scheme", 2)
+with open(path, "w", encoding="utf-8") as f:
+  json.dump(d, f, separators=(",", ":"))
+PY
+}
+
+patch_brave_local_state() {
+  local ls="$HOME/.config/BraveSoftware/Brave-Browser/Local State"
+  [[ -f $ls ]] || return 0
+  python3 - "$ls" "$RGB" <<'PY'
+import ctypes, json, sys
+path, rgb = sys.argv[1], sys.argv[2]
+r, g, b = map(int, rgb.split(","))
+sk = ctypes.c_int32((0xFF << 24) | (r << 16) | (g << 8) | b).value
+with open(path, encoding="utf-8") as f:
+  d = json.load(f)
+changed = False
+for info in d.get("profile", {}).get("info_cache", {}).values():
+  if not isinstance(info, dict):
+    continue
+  for key in ("default_avatar_fill_color", "profile_highlight_color"):
+    if key in info and info[key] != sk:
+      info[key] = sk
+      changed = True
+if changed:
+  with open(path, "w", encoding="utf-8") as f:
+    json.dump(d, f, separators=(",", ":"))
+PY
+}
+
+quit_browser() {
+  local proc=$1
+  pgrep -x "$proc" >/dev/null 2>&1 || return 0
+  pkill -TERM -x "$proc" 2>/dev/null || true
+  local i
+  for i in $(seq 1 50); do
+    pgrep -x "$proc" >/dev/null 2>&1 || return 0
+    sleep 0.1
+  done
+  pkill -KILL -x "$proc" 2>/dev/null || true
+  sleep 0.2
+}
+
+seed_profile() {
+  local proc=$1 seed_cmd=$2 prefs=$3
+  pgrep -x "$proc" >/dev/null 2>&1 && return 0
+  nohup "$seed_cmd" --no-startup-window --install-autogenerated-theme="$RGB" >/dev/null 2>&1 &
+  disown || true
+  local i
+  for i in $(seq 1 150); do
+    if [[ -f $prefs ]]; then
+      patch_prefs "$prefs"
+      quit_browser "$proc"
+      return 0
+    fi
+    sleep 0.2
+  done
+  quit_browser "$proc"
+}
+
+theme_one() {
+  local proc=$1 cmd=$2 seed_cmd=$3 prefs=$4 local_state=${5:-0}
+  omakub-cmd-present "$cmd" || return 0
+
+  if pgrep -x "$proc" >/dev/null 2>&1; then
+    quit_browser "$proc"
+    patch_prefs "$prefs"
+    [[ $local_state == 1 ]] && patch_brave_local_state
+    nohup "$cmd" --install-autogenerated-theme="$RGB" >/dev/null 2>&1 &
+    disown || true
+  elif [[ -f $prefs ]]; then
+    patch_prefs "$prefs"
+    [[ $local_state == 1 ]] && patch_brave_local_state
+  else
+    seed_profile "$proc" "$seed_cmd" "$prefs"
+    [[ $local_state == 1 ]] && patch_brave_local_state
+  fi
+}
+
+theme_one chromium chromium chromium "$HOME/.config/chromium/Default/Preferences" 0
+
+brave_cmd=
+omakub-cmd-present brave-browser-stable && brave_cmd=brave-browser-stable
+[[ -z $brave_cmd ]] && omakub-cmd-present brave-browser && brave_cmd=brave-browser
+
+if [[ -n $brave_cmd ]]; then
+  brave_seed=$brave_cmd
+  [[ -x /opt/brave.com/brave/brave ]] && brave_seed=/opt/brave.com/brave/brave
+  theme_one brave "$brave_cmd" "$brave_seed" "$HOME/.config/BraveSoftware/Brave-Browser/Default/Preferences" 1
+fi