diff --git a/src/pytest_html/fixtures.py b/src/pytest_html/fixtures.py
index 88ce828d..6d5e40b2 100644
--- a/src/pytest_html/fixtures.py
+++ b/src/pytest_html/fixtures.py
@@ -27,7 +27,10 @@ def test_foo(extra):
     )
     pytestconfig.stash[extras_stash_key] = []
     yield pytestconfig.stash[extras_stash_key]
-    del pytestconfig.stash[extras_stash_key][:]
+    # Deliberately not cleared here: a fixture that depends on this one may
+    # still append to the list during its own teardown, which runs after
+    # this point. pytest_runtest_makereport reads it once more for the
+    # "teardown" phase and clears it there instead.
 
 
 @pytest.fixture
@@ -44,4 +47,7 @@ def test_foo(extras):
     """
     pytestconfig.stash[extras_stash_key] = []
     yield pytestconfig.stash[extras_stash_key]
-    del pytestconfig.stash[extras_stash_key][:]
+    # Deliberately not cleared here: a fixture that depends on this one may
+    # still append to the list during its own teardown, which runs after
+    # this point. pytest_runtest_makereport reads it once more for the
+    # "teardown" phase and clears it there instead.
diff --git a/src/pytest_html/plugin.py b/src/pytest_html/plugin.py
index 949a6ffa..be6e583e 100644
--- a/src/pytest_html/plugin.py
+++ b/src/pytest_html/plugin.py
@@ -138,3 +138,18 @@ def pytest_runtest_makereport(item, call):
         fixture_extras = item.config.stash.get(extras_stash_key, [])
         plugin_extras = getattr(report, "extras", [])
         report.extras = fixture_extras + plugin_extras + deprecated_extra
+        # Remember how many stash entries "call" already claimed, so that
+        # anything a fixture appends during its own teardown (which the
+        # stash still holds at this point) isn't attached twice below.
+        item._html_report_extras_seen = len(fixture_extras)
+    elif report.when == "teardown":
+        fixture_extras = item.config.stash.get(extras_stash_key, [])
+        already_seen = getattr(item, "_html_report_extras_seen", 0)
+        new_extras = fixture_extras[already_seen:]
+        if new_extras:
+            report.extras = new_extras + getattr(report, "extras", [])
+        # The "extras"/"extra" fixtures no longer clear the stash on their
+        # own teardown, since a fixture depending on them may still append
+        # to it during its own teardown afterwards. Do it here instead,
+        # once nothing else is left to read it for this test.
+        del fixture_extras[:]
diff --git a/testing/legacy_test_pytest_html.py b/testing/legacy_test_pytest_html.py
index 08ad208d..1fa71c56 100644
--- a/testing/legacy_test_pytest_html.py
+++ b/testing/legacy_test_pytest_html.py
@@ -8,6 +8,7 @@
 import re
 import sys
 from base64 import b64encode
+from html import unescape
 
 import pkg_resources
 import pytest
@@ -706,6 +707,38 @@ def test_pass(extra):
         src = f"data:image/png;base64,{content}"
         assert f'<img src="{src}"/>' in html
 
+    def test_extra_fixture_teardown(self, testdir):
+        content = str(random.random())
+        testdir.makepyfile(
+            f"""
+            import pytest
+
+            @pytest.fixture
+            def cleanup(extras):
+                yield
+                from pytest_html import extras as extras_module
+                extras.append(extras_module.text('{content}'))
+
+            def test_pass(cleanup):
+                pass
+        """
+        )
+        result, html = run(testdir, "report.html", "--self-contained-html")
+        assert result.ret == 0
+
+        match = re.search(r'data-jsonblob="([^"]*)"', html)
+        assert match
+        report_data = json.loads(unescape(match.group(1)))
+        test_extras = report_data["tests"]["test_extra_fixture_teardown.py::test_pass"][
+            0
+        ]["extras"]
+        assert len(test_extras) == 1
+        encoded = b64encode(content.encode("utf-8")).decode("ascii")
+        assert (
+            test_extras[0]["content"]
+            == f"data:text/plain;charset=utf-8;base64,{encoded}"
+        )
+
     def test_no_invalid_characters_in_filename(self, testdir):
         testdir.makeconftest(
             """