When editing one of my videos and trying to drag and drop a custom thumbnail after clicking upload file, I get a red circle with a slash through it on firefox indicating that this is not permitted. I am running firefox 127.0.1 (64-bit). I've tried uninstalling, running in troubleshoot mode and nothing works. Firefox is not running as administrator and my UAC is set to always notify.

On Chrome Version 126.0.6478.61 (Official Build) (64-bit) this feature seems to work as expected. Is this a firefox feature that may be preventing this drag and drop behavior? Please see attached gifs. I am on Windows 10 v22h2 btw -- Any feedback is appreciated.