diff --git a/todo.md b/todo.md
index a7ee541..39a42f6 100644
--- a/todo.md
+++ b/todo.md
@@ -4,4 +4,7 @@
 - [ ] trackdown wezterm bug... (try building from flake?)
   > https://github.com/wez/wezterm/issues/5067
 
+- [ ] Check if vivaldi-ffmpeg-codecs are out of date
+      https://forum.vivaldi.net/topic/88884/page-crash-due-to-read-out-of-range-on-nixos/12
+
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