diff --git a/CHANGELOG.md b/CHANGELOG.md
index 69004a77..5ebf867d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,9 @@ where X.Y.Z is the semver of the most recent choreographer release.
 
 ## [Unreleased]
 
+### Added
+- Add `enable_extensions` option to control browser extension loading [[#303](https://github.com/plotly/choreographer/pull/303)], with thanks to @hirohira9119 for the contribution!
+
 ### Fixed
 - Improve platform architecture detection for arm on Linux and Windows [[#290](https://github.com/plotly/choreographer/pull/290)], with thanks to @juliabeliaeva for the contribution!
 - Fix license file and add a valid SPDX identifier to project settings [[#294](https://github.com/plotly/choreographer/pull/294)], with thanks to @ecederstrand for the contribution!
diff --git a/src/choreographer/browsers/chromium.py b/src/choreographer/browsers/chromium.py
index 88524f33..0b32239a 100644
--- a/src/choreographer/browsers/chromium.py
+++ b/src/choreographer/browsers/chromium.py
@@ -62,10 +62,12 @@ class Chromium:
 
     path: str | Path | None
     """The path to the chromium executable."""
+    extensions_enabled: bool
+    """True to enable browser extensions. True by default."""
     gpu_enabled: bool
     """True if we should use the gpu. False by default for compatibility."""
     headless: bool
-    """True if we should not show the browser, true by default."""
+    """True if we should not show the browser. True by default."""
     sandbox_enabled: bool
     """True to enable the sandbox. False by default."""
     skip_local: bool
@@ -142,9 +144,10 @@ def __init__(
             channel: the `choreographer.Channel` we'll be using (WebSockets? Pipe?)
             path: path to the browser
             kwargs:
-                gpu_enabled (default False): Turn on GPU? Doesn't work in all envs.
-                headless (default True): Actually launch a browser?
-                sandbox_enabled (default False): Enable sandbox-
+                enable_extensions (default True): Enable extensions?
+                enable_gpu (default False): Turn on GPU? Doesn't work in all envs.
+                headless (default True): Run the browser in headless mode?
+                enable_sandbox (default False): Enable sandbox-
                     a persnickety thing depending on environment, OS, user, etc
                 tmp_dir (default None): Manually set the temporary directory
 
@@ -155,6 +158,7 @@ def __init__(
         """
         _logger.info(f"Chromium init'ed with kwargs {kwargs}")
         self.path = path
+        self.extensions_enabled = kwargs.pop("enable_extensions", True)
         self.gpu_enabled = kwargs.pop("enable_gpu", False)
         self.headless = kwargs.pop("headless", True)
         self.sandbox_enabled = kwargs.pop("enable_sandbox", False)
@@ -237,6 +241,8 @@ def get_cli(self) -> Sequence[str]:
                 str(self.path),
             ]
 
+        if not self.extensions_enabled:
+            cli.append("--disable-extensions")
         if not self.gpu_enabled:
             cli.append("--disable-gpu")
         if self.headless:
diff --git a/tests/conftest.py b/tests/conftest.py
index a4f9d258..c34e10cc 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -26,6 +26,11 @@ def headless(request):
     return request.param
 
 
+@pytest.fixture(params=[True, False], ids=["enable_extensions", ""])
+def extension(request):
+    return request.param
+
+
 # --headless is the default flag for most tests,
 # but you can set --no-headless if you want to watch
 def pytest_addoption(parser):
diff --git a/tests/test_process.py b/tests/test_process.py
index 8da9d276..357132f3 100644
--- a/tests/test_process.py
+++ b/tests/test_process.py
@@ -18,7 +18,7 @@
 
 
 @pytest.mark.asyncio(loop_scope="function")
-async def test_context(headless, sandbox, gpu):
+async def test_context(headless, sandbox, gpu, extension):
     _logger.info("testing...")
     if sandbox and "ubuntu" in platform.version().lower():
         pytest.skip(
@@ -35,6 +35,7 @@ async def test_context(headless, sandbox, gpu):
             headless=headless,
             enable_sandbox=sandbox,
             enable_gpu=gpu,
+            enable_extensions=extension,
         ) as browser:
             response = await browser.send_command(command="Target.getTargets")
             assert "result" in response and "targetInfos" in response["result"]  # noqa: PT018 combined assert
@@ -51,7 +52,7 @@ async def test_context(headless, sandbox, gpu):
 
 
 @pytest.mark.asyncio(loop_scope="function")
-async def test_no_context(headless, sandbox, gpu):
+async def test_no_context(headless, sandbox, gpu, extension):
     _logger.info("testing...")
     if sandbox and "ubuntu" in platform.version().lower():
         pytest.skip("Ubuntu doesn't support sandbox unless installed from snap.")
@@ -59,6 +60,7 @@ async def test_no_context(headless, sandbox, gpu):
         headless=headless,
         enable_sandbox=sandbox,
         enable_gpu=gpu,
+        enable_extensions=extension,
     )
     try:
         async with timeout(pytest.default_timeout):  # type: ignore[reportAttributeAccessIssue]