diff --git a/src/app.css b/src/app.css
index ca8ca8b..b149534 100644
--- a/src/app.css
+++ b/src/app.css
@@ -1917,7 +1917,8 @@ body > .szh-menu-container {
   /* two columns only */
   grid-template-columns: repeat(2, 1fr);
 }
-.szh-menu .menu-horizontal:has(> .szh-menu__item:only-child) {
+.szh-menu .menu-horizontal:has(> .szh-menu__item:only-child),
+.szh-menu .menu-horizontal:has(> .szh-menu__submenu:only-child) {
   grid-template-columns: 1fr;
 }
 .szh-menu .menu-horizontal > .szh-menu__item:not(:only-child):first-child,
diff --git a/src/components/nav-menu.jsx b/src/components/nav-menu.jsx
index 769fb84..74f2567 100644
--- a/src/components/nav-menu.jsx
+++ b/src/components/nav-menu.jsx
@@ -12,6 +12,7 @@ import safeBoundingBoxPadding from '../utils/safe-bounding-box-padding';
 import states from '../utils/states';
 import store from '../utils/store';
 import { getCurrentAccountID } from '../utils/store-utils';
+import supports from '../utils/supports';
 
 import Avatar from './avatar';
 import Icon from './icon';
@@ -83,8 +84,10 @@ function NavMenu(props) {
     return results;
   }
 
+  const supportsLists = supports('@mastodon/lists');
   const [lists, setLists] = useState([]);
   useEffect(() => {
+    if (!supportsLists) return;
     if (menuState === 'open') {
       getLists().then(setLists);
     }
@@ -186,9 +189,11 @@ function NavMenu(props) {
                 <Icon icon="history2" size="l" />
                 <span>Catch-up</span>
               </MenuLink>
-              <MenuLink to="/mentions">
-                <Icon icon="at" size="l" /> <span>Mentions</span>
-              </MenuLink>
+              {supports('@mastodon/mentions') && (
+                <MenuLink to="/mentions">
+                  <Icon icon="at" size="l" /> <span>Mentions</span>
+                </MenuLink>
+              )}
               <MenuLink to="/notifications">
                 <Icon icon="notification" size="l" /> <span>Notifications</span>
                 {snapStates.notificationsShowNew && (
@@ -232,10 +237,12 @@ function NavMenu(props) {
                   )}
                 </SubMenu2>
               ) : (
-                <MenuLink to="/l">
-                  <Icon icon="list" size="l" />
-                  <span>Lists</span>
-                </MenuLink>
+                supportsLists && (
+                  <MenuLink to="/l">
+                    <Icon icon="list" size="l" />
+                    <span>Lists</span>
+                  </MenuLink>
+                )
               )}
               <MenuLink to="/b">
                 <Icon icon="bookmark" size="l" /> <span>Bookmarks</span>
@@ -260,10 +267,12 @@ function NavMenu(props) {
                   <span>Followed Hashtags</span>
                 </MenuLink>
                 <MenuDivider />
-                <MenuLink to="/ft">
-                  <Icon icon="filters" size="l" />
-                  Filters
-                </MenuLink>
+                {supports('@mastodon/filters') && (
+                  <MenuLink to="/ft">
+                    <Icon icon="filters" size="l" />
+                    Filters
+                  </MenuLink>
+                )}
                 <MenuItem
                   onClick={() => {
                     states.showGenericAccounts = {
diff --git a/src/components/status.jsx b/src/components/status.jsx
index 21a423d..455cd4e 100644
--- a/src/components/status.jsx
+++ b/src/components/status.jsx
@@ -55,6 +55,7 @@ import states, { getStatus, saveStatus, statusKey } from '../utils/states';
 import statusPeek from '../utils/status-peek';
 import store from '../utils/store';
 import { getCurrentAccountID } from '../utils/store-utils';
+import supports from '../utils/supports';
 import unfurlMastodonLink from '../utils/unfurl-link';
 import useHotkeys from '../utils/useHotkeys';
 import useTruncated from '../utils/useTruncated';
@@ -149,6 +150,12 @@ const PostContent = memo(
   },
 );
 
+const SIZE_CLASS = {
+  s: 'small',
+  m: 'medium',
+  l: 'large',
+};
+
 function Status({
   statusID,
   status,
@@ -174,7 +181,11 @@ function Status({
 }) {
   if (skeleton) {
     return (
-      <div class={`status skeleton ${mediaFirst ? 'status-media-first' : ''}`}>
+      <div
+        class={`status skeleton ${
+          mediaFirst ? 'status-media-first small' : ''
+        }`}
+      >
         {!mediaFirst && <Avatar size="xxl" />}
         <div class="container">
           <div class="meta">
@@ -640,6 +651,7 @@ function Status({
   };
 
   const bookmarkStatus = async () => {
+    if (!supports('@mastodon/post-bookmark')) return;
     if (!sameInstance || !authenticated) {
       alert(unauthInteractionErrorMessage);
       return false;
@@ -827,13 +839,15 @@ function Status({
                   : 'Like'}
               </span>
             </MenuItem>
-            <MenuItem
-              onClick={bookmarkStatusNotify}
-              className={`menu-bookmark ${bookmarked ? 'checked' : ''}`}
-            >
-              <Icon icon="bookmark" />
-              <span>{bookmarked ? 'Unbookmark' : 'Bookmark'}</span>
-            </MenuItem>
+            {supports('@mastodon/post-bookmark') && (
+              <MenuItem
+                onClick={bookmarkStatusNotify}
+                className={`menu-bookmark ${bookmarked ? 'checked' : ''}`}
+              >
+                <Icon icon="bookmark" />
+                <span>{bookmarked ? 'Unbookmark' : 'Bookmark'}</span>
+              </MenuItem>
+            )}
           </div>
         </>
       )}
@@ -1077,16 +1091,18 @@ function Status({
       )}
       {isSelf && (
         <div class="menu-horizontal">
-          <MenuItem
-            onClick={() => {
-              states.showCompose = {
-                editStatus: status,
-              };
-            }}
-          >
-            <Icon icon="pencil" />
-            <span>Edit</span>
-          </MenuItem>
+          {supports('@mastodon/post-edit') && (
+            <MenuItem
+              onClick={() => {
+                states.showCompose = {
+                  editStatus: status,
+                };
+              }}
+            >
+              <Icon icon="pencil" />
+              <span>Edit</span>
+            </MenuItem>
+          )}
           {isSizeLarge && (
             <MenuConfirm
               subMenu
@@ -1395,11 +1411,7 @@ function Status({
             ? 'status-reply-to'
             : ''
         } visibility-${visibility} ${_pinned ? 'status-pinned' : ''} ${
-          {
-            s: 'small',
-            m: 'medium',
-            l: 'large',
-          }[size]
+          SIZE_CLASS[size]
         } ${_deleted ? 'status-deleted' : ''} ${quoted ? 'status-card' : ''} ${
           isContextMenuOpen ? 'status-menu-open' : ''
         } ${mediaFirst && hasMediaAttachments ? 'status-media-first' : ''}`}
@@ -2160,16 +2172,18 @@ function Status({
                     onClick={favouriteStatus}
                   />
                 </div>
-                <div class="action">
-                  <StatusButton
-                    checked={bookmarked}
-                    title={['Bookmark', 'Unbookmark']}
-                    alt={['Bookmark', 'Bookmarked']}
-                    class="bookmark-button"
-                    icon="bookmark"
-                    onClick={bookmarkStatus}
-                  />
-                </div>
+                {supports('@mastodon/post-bookmark') && (
+                  <div class="action">
+                    <StatusButton
+                      checked={bookmarked}
+                      title={['Bookmark', 'Unbookmark']}
+                      alt={['Bookmark', 'Bookmarked']}
+                      class="bookmark-button"
+                      icon="bookmark"
+                      onClick={bookmarkStatus}
+                    />
+                  </div>
+                )}
                 <Menu2
                   portal={{
                     target:
diff --git a/src/pages/trending.jsx b/src/pages/trending.jsx
index bd76192..44a2577 100644
--- a/src/pages/trending.jsx
+++ b/src/pages/trending.jsx
@@ -19,6 +19,7 @@ import pmem from '../utils/pmem';
 import shortenNumber from '../utils/shorten-number';
 import states from '../utils/states';
 import { saveStatus } from '../utils/states';
+import supports from '../utils/supports';
 import useTitle from '../utils/useTitle';
 
 const LIMIT = 20;
@@ -33,6 +34,17 @@ const fetchLinks = pmem(
   },
 );
 
+function fetchTrends(masto) {
+  if (supports('@pixelfed/trending')) {
+    return masto.pixelfed.v2.discover.posts.trending.list({
+      range: 'daily',
+    });
+  }
+  return masto.v1.trends.statuses.list({
+    limit: LIMIT,
+  });
+}
+
 function Trending({ columnMode, ...props }) {
   const snapStates = useSnapshot(states);
   const params = columnMode ? {} : useParams();
@@ -48,36 +60,39 @@ function Trending({ columnMode, ...props }) {
   const [hashtags, setHashtags] = useState([]);
   const [links, setLinks] = useState([]);
   const trendIterator = useRef();
+
   async function fetchTrend(firstLoad) {
     if (firstLoad || !trendIterator.current) {
-      trendIterator.current = masto.v1.trends.statuses.list({
-        limit: LIMIT,
-      });
+      trendIterator.current = fetchTrends(masto);
 
       // Get hashtags
-      try {
-        const iterator = masto.v1.trends.tags.list();
-        const { value: tags } = await iterator.next();
-        console.log('tags', tags);
-        if (tags?.length) {
-          setHashtags(tags);
+      if (supports('@mastodon/trending-hashtags')) {
+        try {
+          const iterator = masto.v1.trends.tags.list();
+          const { value: tags } = await iterator.next();
+          console.log('tags', tags);
+          if (tags?.length) {
+            setHashtags(tags);
+          }
+        } catch (e) {
+          console.error(e);
         }
-      } catch (e) {
-        console.error(e);
       }
 
       // Get links
-      try {
-        const { value } = await fetchLinks(masto, instance);
-        // 4 types available: link, photo, video, rich
-        // Only want links for now
-        const links = value?.filter?.((link) => link.type === 'link');
-        console.log('links', links);
-        if (links?.length) {
-          setLinks(links);
+      if (supports('@mastodon/trending-links')) {
+        try {
+          const { value } = await fetchLinks(masto, instance);
+          // 4 types available: link, photo, video, rich
+          // Only want links for now
+          const links = value?.filter?.((link) => link.type === 'link');
+          console.log('links', links);
+          if (links?.length) {
+            setLinks(links);
+          }
+        } catch (e) {
+          console.error(e);
         }
-      } catch (e) {
-        console.error(e);
       }
     }
     const results = await trendIterator.current.next();
diff --git a/src/utils/supports.js b/src/utils/supports.js
index 02b1a49..4733cd9 100644
--- a/src/utils/supports.js
+++ b/src/utils/supports.js
@@ -4,6 +4,20 @@ import features from '../data/features.json';
 
 import { getCurrentInstance } from './store-utils';
 
+// Non-semver(?) UA string detection
+// Can't put this inside features.json due to regex
+const containPixelfed = /pixelfed/i;
+const notContainPixelfed = /^(?!.*pixelfed).*$/i;
+const platformFeatures = {
+  '@mastodon/lists': notContainPixelfed,
+  '@mastodon/filters': notContainPixelfed,
+  '@mastodon/mentions': notContainPixelfed,
+  '@mastodon/trending-hashtags': notContainPixelfed,
+  '@mastodon/trending-links': notContainPixelfed,
+  '@mastodon/post-bookmark': notContainPixelfed,
+  '@mastodon/post-edit': notContainPixelfed,
+  '@pixelfed/trending': containPixelfed,
+};
 const supportsCache = {};
 
 function supports(feature) {
@@ -11,6 +25,11 @@ function supports(feature) {
     const { version, domain } = getCurrentInstance();
     const key = `${domain}-${feature}`;
     if (supportsCache[key]) return supportsCache[key];
+
+    if (platformFeatures[feature]) {
+      return (supportsCache[key] = platformFeatures[feature].test(version));
+    }
+
     const range = features[feature];
     if (!range) return false;
     return (supportsCache[key] = satisfies(version, range, {