diff --git a/qutebrowser/misc/crashdialog.py b/qutebrowser/misc/crashdialog.py
index cfc125bb9..515435666 100644
--- a/qutebrowser/misc/crashdialog.py
+++ b/qutebrowser/misc/crashdialog.py
@@ -20,9 +20,11 @@
 """The dialog which gets shown when qutebrowser crashes."""
 
 import re
+import os
 import sys
 import html
 import getpass
+import fnmatch
 import traceback
 
 import pkg_resources
@@ -91,6 +93,17 @@ def get_fatal_crash_dialog(debug, data):
         return QMessageBox(QMessageBox.Critical, title, text, QMessageBox.Ok)
 
 
+def _get_environment_vars():
+    """Gather enveronment variables for the crash info."""
+    masks = ('DESKTOP_SESSION', 'DE', 'QT_*', 'PYTHON*', 'LC_*', 'LANG')
+    info = []
+    for key, value in os.environ.items():
+        for m in masks:
+            if fnmatch.fnmatch(key, m):
+                info.append('%s = %s' % (key, value))
+    return '\n'.join(sorted(info))
+
+
 class _CrashDialog(QDialog):
 
     """Dialog which gets shown after there was a crash.
@@ -234,6 +247,11 @@ class _CrashDialog(QDialog):
             self._crash_info.append(("Config", conf.dump_userconfig()))
         except Exception:
             self._crash_info.append(("Config", traceback.format_exc()))
+        try:
+            self._crash_info.append(
+                ("Environment", _get_environment_vars()))
+        except Exception:
+            self._crash_info.append(("Environment", traceback.format_exc()))
 
     def _set_crash_info(self):
         """Set/update the crash info."""
@@ -624,3 +642,8 @@ def dump_exception_info(exc, pages, cmdhist, objects):
     print('\n'.join(cmdhist), file=sys.stderr)
     print("\n---- Objects ----", file=sys.stderr)
     print(objects, file=sys.stderr)
+    print("\n---- Environment ----", file=sys.stderr)
+    try:
+        print(_get_environment_vars(), file=sys.stderr)
+    except Exception:
+        traceback.print_exc()
diff --git a/tests/unit/misc/test_crashdialog.py b/tests/unit/misc/test_crashdialog.py
index ae0078c99..f79f2f1b5 100644
--- a/tests/unit/misc/test_crashdialog.py
+++ b/tests/unit/misc/test_crashdialog.py
@@ -19,6 +19,8 @@
 
 """Tests for qutebrowser.misc.crashdialog."""
 
+import os
+import pytest
 from qutebrowser.misc import crashdialog
 
 
@@ -77,3 +79,26 @@ class TestParseFatalStacktrace:
         text = INVALID_CRASH_TEXT.strip().replace('_', ' ')
         typ, func = crashdialog.parse_fatal_stacktrace(text)
         assert (typ, func) == ('', '')
+
+
+@pytest.mark.parametrize('env, expected', [
+    ({'FOO': 'bar'}, ""),
+    ({'FOO': 'bar', 'LC_ALL': 'baz'}, "LC_ALL = baz"),
+    ({'LC_ALL': 'baz', 'PYTHONFOO': 'fish'}, "LC_ALL = baz\nPYTHONFOO = fish"),
+    (
+        {'DE': 'KDE', 'DESKTOP_SESSION': 'plasma'},
+        "DE = KDE\nDESKTOP_SESSION = plasma"
+    ),
+    (
+        {'QT5_IM_MODULE': 'fcitx', 'QT_IM_MODULE': 'fcitx'},
+        "QT_IM_MODULE = fcitx"
+    ),
+    ({'LANGUAGE': 'foo', 'LANG': 'en_US.UTF-8'}, "LANG = en_US.UTF-8"),
+])
+def test_get_environment_vars(monkeypatch, env, expected):
+    """Test for crashdialog._get_environment_vars."""
+    for key in os.environ.copy():
+        monkeypatch.delenv(key)
+    for k, v in env.items():
+        monkeypatch.setenv(k, v)
+    assert crashdialog._get_environment_vars() == expected