try firefox

doc/sphinxext/contrib_avatars.py

@@ -3,16 +3,22 @@
 from selenium import webdriver
 from selenium.webdriver.common.by import By
 from selenium.webdriver.support.ui import WebDriverWait
+from selenium.common.exceptions import WebDriverException
 
 
 def generate_contrib_avatars(app, config):
     """Render a template webpage with avatars generated by JS and a GitHub API call."""
     root = Path(app.srcdir)
     infile = root / "sphinxext" / "_avatar_template.html"
     outfile = root / "_templates" / "avatars.html"
-    options = webdriver.ChromeOptions()
-    options.add_argument("--headless=new")
-    driver = webdriver.Chrome(options=options)
+    try:
+        options = webdriver.FirefoxOptions()
+        options.add_argument("--headless")
+        driver = webdriver.Firefox(options=options)
+    except WebDriverException:
+        options = webdriver.ChromeOptions()
+        options.add_argument("--headless=new")
+        driver = webdriver.Chrome(options=options)
     driver.get(f"file://{infile}")
     wait = WebDriverWait(driver, 20)
     wait.until(lambda d: d.find_element(by=By.ID, value="contributor-avatars"))

tools/circleci_bash_env.sh

@@ -4,7 +4,8 @@ set -e
 set -o pipefail
 
 ./tools/setup_xvfb.sh
-sudo apt install -qq graphviz optipng python3.10-venv python3-venv libxft2 ffmpeg chromium chromium-driver
+sudo apt install -qq graphviz optipng python3.10-venv python3-venv libxft2 ffmpeg
+sudo snap install firefox
 python3.10 -m venv ~/python_env
 echo "set -e" >> $BASH_ENV
 echo "set -o pipefail" >> $BASH_ENV

tools/circleci_dependencies.sh

@@ -1,4 +1,6 @@
 #!/bin/bash -ef
 
 python -m pip install --upgrade "pip!=20.3.0" setuptools wheel
-python -m pip install --upgrade --progress-bar off --only-binary "numpy,scipy,matplotlib,pandas,statsmodels" -r requirements.txt -r requirements_testing.txt -r requirements_doc.txt PyQt6 git+https://github.com/mne-tools/mne-qt-browser -e .
+python -m pip install --upgrade --progress-bar off --only-binary "numpy,scipy,matplotlib,pandas,statsmodels" -r requirements.txt -r requirements_testing.txt -r requirements_doc.txt webdrivermanager PyQt6 git+https://github.com/mne-tools/mne-qt-browser -e .
+
+webdrivermanager firefox --linkpath AUTO