diff --git a/copyparty/httpcli.py b/copyparty/httpcli.py
index 0f25d2a7..5ff828db 100644
--- a/copyparty/httpcli.py
+++ b/copyparty/httpcli.py
@@ -1846,7 +1846,9 @@ class HttpCli(object):
         if len(ext) > 11:
             ext = "⋯" + ext[-9:]
 
-        mime, ico = self.ico.get(ext, not exact)
+        # chrome cannot handle more than ~2000 unique SVGs
+        chrome = " rv:" not in self.ua
+        mime, ico = self.ico.get(ext, not exact, chrome)
 
         dt = datetime.utcfromtimestamp(self.E.t0)
         lm = dt.strftime("%a, %d %b %Y %H:%M:%S GMT")
diff --git a/copyparty/ico.py b/copyparty/ico.py
index 721f17a1..3ef812de 100644
--- a/copyparty/ico.py
+++ b/copyparty/ico.py
@@ -6,13 +6,15 @@ import colorsys
 import hashlib
 
 from .__init__ import PY2
+from .th_srv import HAVE_PIL
+from .util import BytesIO
 
 
 class Ico(object):
     def __init__(self, args: argparse.Namespace) -> None:
         self.args = args
 
-    def get(self, ext: str, as_thumb: bool) -> tuple[str, bytes]:
+    def get(self, ext: str, as_thumb: bool, chrome: bool) -> tuple[str, bytes]:
         """placeholder to make thumbnails not break"""
 
         zb = hashlib.sha1(ext.encode("utf-8")).digest()[2:4]
@@ -24,10 +26,44 @@ class Ico(object):
         ci = [int(x * 255) for x in list(c1) + list(c2)]
         c = "".join(["{:02x}".format(x) for x in ci])
 
+        w = 100
         h = 30
         if not self.args.th_no_crop and as_thumb:
-            w, h = self.args.th_size.split("x")
-            h = int(100 / (float(w) / float(h)))
+            sw, sh = self.args.th_size.split("x")
+            h = int(100 / (float(sw) / float(sh)))
+            w = 100
+
+        if chrome and as_thumb:
+            # cannot handle more than ~2000 unique SVGs
+            if HAVE_PIL:
+                # svg: 3s, cache: 6s, this: 8s
+                from PIL import Image, ImageDraw
+
+                h = int(64 * h / w)
+                w = 64
+                img = Image.new("RGB", (w, h), "#" + c[:6])
+                pb = ImageDraw.Draw(img)
+                tw, th = pb.textsize(ext)
+                pb.text(((w - tw) // 2, (h - th) // 2), ext, fill="#" + c[6:])
+                img = img.resize((w * 3, h * 3), Image.Resampling.NEAREST)
+
+                buf = BytesIO()
+                img.save(buf, format="PNG", compress_level=1)
+                return "image/png", buf.getvalue()
+
+            elif False:
+                # 48s, too slow
+                import pyvips
+
+                h = int(192 * h / w)
+                w = 192
+                img = pyvips.Image.text(
+                    ext, width=w, height=h, dpi=192, align=pyvips.Align.CENTRE
+                )
+                img = img.ifthenelse(ci[3:], ci[:3], blend=True)
+                # i = i.resize(3, kernel=pyvips.Kernel.NEAREST)
+                buf = img.write_to_buffer(".png[compression=1]")
+                return "image/png", buf
 
         svg = """\
 <?xml version="1.0" encoding="UTF-8"?>
diff --git a/copyparty/web/browser.js b/copyparty/web/browser.js
index 1ab22ead..f9af6b83 100644
--- a/copyparty/web/browser.js
+++ b/copyparty/web/browser.js
@@ -3787,8 +3787,11 @@ var thegrid = (function () {
 		if (!r.dirty)
 			return r.loadsel();
 
-		var html = [];
-		var files = QSA('#files>tbody>tr>td:nth-child(2) a[id]');
+		var html = [],
+			svgs = new Set(),
+			max_svgs = CHROME ? 500 : 5000,
+			files = QSA('#files>tbody>tr>td:nth-child(2) a[id]');
+
 		for (var a = 0, aa = files.length; a < aa; a++) {
 			var ao = files[a],
 				ohref = esc(ao.getAttribute('href')),
@@ -3823,7 +3826,14 @@ var thegrid = (function () {
 				if (!ihref) {
 					ihref = 'unk.';
 				}
-				ihref = '/.cpr/ico/' + ihref.slice(0, -1);
+				var ext = ihref.slice(0, -1);
+				if (!svgs.has(ext)) {
+					if (svgs.size < max_svgs)
+						svgs.add(ext);
+					else
+						ext = "unk";
+				}
+				ihref = '/.cpr/ico/' + ext;
 			}
 			ihref += (ihref.indexOf('?') > 0 ? '&' : '?') + 'cache=i';