Reddit Subreddit Blocker by Avarice Night

A simple extension that adds buttons to the native ui to allow blocking and unblocking specific subreddits, as well as searching for currently blocked subs and mass unblocking(for instance, avoiding spoilers in a show you've now finished and want to unblock)

To block a subreddit, at the moment, is done by seeing that subreddit on the frontpage and clicking its submenu. Inside you'll find a new Block button that will add it to the list. Future planned support includes searching for subreddits directly(pulling the profile icons as well to reduce confusion on WHICH subreddit you're blocking) and the ability to import/export block lists for yourself or others.