We have two new features available that had formerly only existed in the 420chan Firefox Extension. Quick Reply, which allows you to write a reply to a thread or user without scrolling all the way back to the top of a page, and Hide Thread, so you can obscure threads that you no longer wish to see.
Why build these in directly? The extension (and related scripts) stopped working due to markup changes and ongoing updates to HTML5 compatibility. I am not the original author or maintainer of them, so this is our best alternative. In addition, it allows other browsers and platforms to take advantage of the functionality.
There’s been some major back-end overhauls in action for more very exciting new things, coming soon!