diff --git a/app/soapbox/__fixtures__/friendica-instance.json b/app/soapbox/__fixtures__/friendica-instance.json
new file mode 100644
index 000000000..cb6902d1f
--- /dev/null
+++ b/app/soapbox/__fixtures__/friendica-instance.json
@@ -0,0 +1,46 @@
+{
+  "uri": "https://ica.mkljczk.pl",
+  "title": "Friendica Social Network",
+  "short_description": "",
+  "description": "",
+  "email": "me@mkljczk.pl",
+  "version": "2022.05-dev",
+  "urls": null,
+  "stats": {
+    "user_count": 0,
+    "status_count": 0,
+    "domain_count": 0
+  },
+  "thumbnail": "https://ica.mkljczk.plimages/friendica-32.png",
+  "languages": [
+    "pl"
+  ],
+  "max_toot_chars": 200000,
+  "registrations": true,
+  "approval_required": false,
+  "invites_enabled": false,
+  "contact_account": {
+    "id": "2",
+    "username": "nofriend",
+    "acct": "nofriend",
+    "display_name": "marcin mikołajczak",
+    "locked": true,
+    "bot": false,
+    "discoverable": true,
+    "group": false,
+    "created_at": "2022-02-19T14:51:00.000Z",
+    "note": "",
+    "url": "https://ica.mkljczk.pl/profile/nofriend",
+    "avatar": "https://ica.mkljczk.pl/photo/contact/300/68a16c11-1262-1103-d40b-806159848009?ts=1645292106",
+    "avatar_static": "https://ica.mkljczk.pl/photo/contact/300/68a16c11-1262-1103-d40b-806159848009?ts=1645292106",
+    "header": "https://ica.mkljczk.pl/photo/header/68a16c11-1262-1103-d40b-806159848009?ts=1645292106",
+    "header_static": "https://ica.mkljczk.pl/photo/header/68a16c11-1262-1103-d40b-806159848009?ts=1645292106",
+    "followers_count": 0,
+    "following_count": 1,
+    "statuses_count": 0,
+    "last_status_at": "2022-02-20",
+    "emojis": [],
+    "fields": []
+  },
+  "rules": []
+}
diff --git a/app/soapbox/normalizers/__tests__/instance-test.js b/app/soapbox/normalizers/__tests__/instance-test.js
index 3496da046..8f992bb84 100644
--- a/app/soapbox/normalizers/__tests__/instance-test.js
+++ b/app/soapbox/normalizers/__tests__/instance-test.js
@@ -118,4 +118,30 @@ describe('normalizeInstance()', () => {
     expect(result.get('configuration') instanceof ImmutableMap).toBe(true);
     expect(result.get('description_limit')).toBe(1500);
   });
+
+  it('normalizes GoToSocial instance', () => {
+    const instance = fromJS(require('soapbox/__fixtures__/gotosocial-instance.json'));
+    const result = normalizeInstance(instance);
+
+    // Normalizes max_toot_chars
+    expect(result.getIn(['configuration', 'statuses', 'max_characters'])).toEqual(5000);
+    expect(result.has('max_toot_chars')).toBe(false);
+
+    // Adds configuration and description_limit
+    expect(result.get('configuration') instanceof ImmutableMap).toBe(true);
+    expect(result.get('description_limit')).toBe(1500);
+  });
+
+  it('normalizes Friendica instance', () => {
+    const instance = fromJS(require('soapbox/__fixtures__/friendica-instance.json'));
+    const result = normalizeInstance(instance);
+
+    // Normalizes max_toot_chars
+    expect(result.getIn(['configuration', 'statuses', 'max_characters'])).toEqual(200000);
+    expect(result.has('max_toot_chars')).toBe(false);
+
+    // Adds configuration and description_limit
+    expect(result.get('configuration') instanceof ImmutableMap).toBe(true);
+    expect(result.get('description_limit')).toBe(1500);
+  });
 });