diff --git a/tests/addon.py b/tests/addon.py
index b5d65e4c..33a5bc3c 100644
--- a/tests/addon.py
+++ b/tests/addon.py
@@ -320,7 +320,7 @@ def open_context_menu(self) -> None:
         else:
             offset = 0
 
-        self.helper.gui_typewrite(['up'] + ['up'] * offset + ['enter'], interval=0.5)
+        self.helper.gui_write(['up'] + ['up'] * offset + ['enter'], interval=0.5)
 
     # TODO this doesn't belong to this class really, think about it
     def move_to(self, element) -> None:
diff --git a/tests/addon_helper.py b/tests/addon_helper.py
index 1cd280fa..9dd97293 100644
--- a/tests/addon_helper.py
+++ b/tests/addon_helper.py
@@ -4,13 +4,12 @@
 from pathlib import Path
 import re
 import subprocess
-from typing import Any, List
+from typing import Any
 
 from loguru import logger
-import psutil
 from selenium import webdriver
 
-from webdriver_utils import is_headless
+from webdriver_utils import is_headless, get_browser_process
 
 
 @dataclass
@@ -27,6 +26,10 @@ def manifest(self) -> Any:
         # ugh. sadly (at least in Firefox) there doesn't seem a way to read actual manifest loaded in browser?
         return json.loads((self.addon_source / 'manifest.json').read_text())
 
+    @cached_property
+    def manifest_version(self) -> int:
+        return self.manifest['manifest_version']
+
     @property
     def extension_prefix(self) -> str:
         protocol = {
@@ -63,9 +66,9 @@ def trigger_command(self, command: str) -> None:
             )
         else:
             hotkey = commands[command]['suggested_key']['default']
-            self.trigger_hotkey(hotkey)
+            self.gui_hotkey(hotkey)
 
-    def trigger_hotkey(self, key: str) -> None:
+    def gui_hotkey(self, key: str) -> None:
         assert not self.headless  # just in case
         lkey = key.lower().split('+')
         logger.debug(f'sending hotkey {lkey}')
@@ -75,13 +78,13 @@ def trigger_hotkey(self, key: str) -> None:
         focus_browser_window(self.driver)
         pyautogui.hotkey(*lkey)
 
-    def gui_typewrite(self, *args, **kwargs) -> None:
+    def gui_write(self, *args, **kwargs) -> None:
         assert not self.headless
 
         import pyautogui
 
         focus_browser_window(self.driver)
-        pyautogui.typewrite(*args, **kwargs)  # select first item
+        pyautogui.write(*args, **kwargs)
 
 
 # NOTE looks like it used to be posssible in webdriver api?
@@ -142,11 +145,7 @@ def get_window_id(driver: webdriver.Remote) -> str:
         pid = str(driver.capabilities['moz:processID'])
     elif driver.name == 'chrome':
         # ugh no pid in capabilities...
-        driver_pid = driver.service.process.pid  # type: ignore[attr-defined]
-        process = psutil.Process(driver_pid)
-        [chrome_process] = process.children()
-        cmdline = chrome_process.cmdline()
-        assert '--enable-automation' in cmdline, cmdline
+        chrome_process = get_browser_process(driver)
         pid = str(chrome_process.pid)
     else:
         raise RuntimeError(driver.name)
diff --git a/tests/end2end_test.py b/tests/end2end_test.py
index a854c600..9f002e51 100755
--- a/tests/end2end_test.py
+++ b/tests/end2end_test.py
@@ -291,7 +291,7 @@ def test_add_to_blacklist_context_menu(addon: Addon, driver: Driver) -> None:
     driver.get('https://example.com')
 
     addon.open_context_menu()
-    addon.helper.gui_typewrite(['enter'])  # select first item
+    addon.helper.gui_write(['enter'])  # select first item
 
     confirm('shows prompt with alert to enter pattern to block?')
     wait_for_alert(driver).accept()
@@ -682,7 +682,7 @@ def test_fuzz(addon: Addon, driver: Driver, backend: Backend) -> None:
         pytest.skip("Rest of this test uses send_key to restore tab and it's not working under headless webdriver :(")
 
     for _ in range(10):
-        addon.helper.trigger_hotkey('Ctrl+Shift+t')  # restore tabs
+        addon.helper.gui_hotkey('Ctrl+Shift+t')  # restore tabs
         sleep(0.1)
     confirm("shouldn't result in 'unexpected error occured'; show only show single notification per page")
 
diff --git a/tests/webdriver_utils.py b/tests/webdriver_utils.py
index 51d99818..08af3040 100644
--- a/tests/webdriver_utils.py
+++ b/tests/webdriver_utils.py
@@ -3,6 +3,7 @@
 from time import sleep
 from typing import Dict, Iterator, Optional
 
+import psutil
 from selenium import webdriver
 from selenium.common.exceptions import NoAlertPresentException
 from selenium.webdriver import Remote as Driver
@@ -53,8 +54,10 @@ def is_headless(driver: Driver) -> bool:
     if driver.name == 'firefox':
         return driver.capabilities.get('moz:headless', False)
     elif driver.name == 'chrome':
+        return any('--headless' in c for c in get_browser_process(driver).cmdline())
+        # ugh.. looks like this stopped working?
         # https://antoinevastel.com/bot%20detection/2018/01/17/detect-chrome-headless-v2.html
-        return driver.execute_script("return navigator.webdriver") is True
+        # return driver.execute_script("return navigator.webdriver") is True
     else:
         raise RuntimeError(driver.name)
 
@@ -157,3 +160,17 @@ def get_webdriver(
     version_string = ' '.join(f'{k}={v}' for k, v in version_data.items())
     logger.info(f'webdriver version: {version_string}')
     return driver
+
+
+def get_browser_process(driver: webdriver.Remote) -> psutil.Process:
+    driver_pid = driver.service.process.pid  # type: ignore[attr-defined]
+    dprocess = psutil.Process(driver_pid)
+    [process] = dprocess.children()
+    cmdline = process.cmdline()
+    if driver.name == 'firefox':
+        assert '--marionette' in cmdline, cmdline
+    elif driver.name == 'chrome':
+        assert '--enable-automation' in cmdline, cmdline
+    else:
+        raise AssertionError
+    return process