Social Fixer is filled with features to make your Facebook experience better.

Filter posts in the news feed by content, author, link url, and more
Built-in Filter Subscriptions let you just pick a filter and use it without knowing how it works
Pre-defined filters include hiding Sponsored Posts, Political posts, things your friends like, and much more.
Hide posts you've read and are done with, so they don't appear in the news feed anymore
Select from a list of Display Tweaks to customize the interface, or write your own with CSS
Force FB to stay on the Most Recent feed
Hide parts of the page you don't want to see, like panels in the left or right columns.
Comment Navigator lets you expand all comments and replies to a post, and highlight comments that are older than an age you specify
Tips point you to built-in Facebook settings and options and suggest values to make your experience better
Stealth Mode hides Like buttons, Comment areas, etc so you can browse Facebook without accidentally interacting with posts you don't intend to
Show full timestamps on posts, rather than relative times like "1 hr ago"
Anonymize for screenshots with one click - hide friend names, group names, profile pictures, etc. If you want to share a conversation or screenshot but not your privacy, anonymize first.

Filters and Tweaks are updated regularly and automatically available to you to use without any additional work. Features will be added continuously to make your Facebook experience as great as possible!