Regarding the new #Mastodon instance web design (as currently showing at mastodon.social), i've noticed the following:
* Older Firefox browser doesn't show anything (just black)
* Latest Firefox version (105) doesn't allow to scroll the left column... so you can't get to all content, if your resolution isn't large enough... (Workaround: Resize/Zoom the browser's display).
Just some technical feedback...