Browse plugins and modifications for MyBB, allowing you to endlessly customize your forum with new features and functionality.
Browsing All Plugins
MySessions allows users to view all of their account's (or all accounts, based on settings) current sessions and log out any sessions they find suspicious.
Adds additional functionality to thread ratings, including the ability to see who rated threads as well as the ability to delete thread ratings.
Lets you activate users directly from their profile.
Shows the users' nickname in the specific post which he/she rated.
Creates an experience and level information based on the next user title
Each profile looks like any other. That's boring, but with this plugin every user can style his profile
Send warnings without increasing the warning level.
MySEO
by BitLiberal
The MySEO plugin for MyBB combines and installs everything you need to optimize your SEO OnPage in your forum, improve your position in major search engines like Google, Bing, or Yahoo, and improve social media integration with social networks like Google
Awards an administrator-defined amount of rep for an administrator defined amount of posts.
Adds a default icon to threads and posts without an icon.

Staff Page
by mrnu
Creates a page which contains manageable list of staff members.
Keep people from reporting stuff multiple times.

jQuery Slideshow for MyBB

Stores every new IPs as an IP specified in a setting. Also makes it possible to convert all current IPs to it.

MyBB 1.8 plugin to disable thread reviews in certain forums while writing replies.
Allows you to create custom variables
Change months names to forum language.
This plugin allows to you and your users to set restriction about who can view the threads!

MyBB plugin that shows how many new posts are in the thread since last read.
Adds in a nestable [spoiler] to your MyBB forum.