I recently noticed that whenever I do video playback the corresponding tab will spike to 60% CPU usage (in a single CPU thread) and doing profiler in Firefox's process manager clearly shows that Bitwarden (requestIdleCallback handler) causes this. Disable the extension and refresh video website solves the issue for me. --- This issue can be mitigated by add domain name to Autofill setting -> Blocked domains github.com bitwarden/client issue 12045
