you can easily put AdSense ads on your forum, Only putting AdSense codes

Display the posters Avatars on Board and/or MessageIndex

Shows specified language part of a post

Shows last post on each page

Adds a customizable Popup with optional AdBlock detection

Shows unanswered topics as list of a topics or posts to the user.

Adds ability to show attached SVG files as images

Smush it! For SMF - Image Attachment Space Saver

MathJax library for LaTeX equations rendering

Render posts using semantically correct <p></p> elements instead of <br /> element

Logs who viewed a topic.

Make content unquotable OR visible/invisible based on criteria

Allows you to set prefixes for topics and easily customize them with colors and icons.

Make your keyinfo simplified with no mesage icon, thread title and quickbutton icons in post.

Move your edited time next to posted time so it is no longer below the post but on its top.

Adds a permission to disable the attachment limits for membergroups

Returns HTML 404 on Missing Topics/Boards

Collaboration on posts

Expands the top menu's Admin menu for completeness

Say Thanks provides the ability for users to thank posts.

Allows you to quicky choose a language to show the Registration Agreement

Adds a Profile page to show who's buddies with you.

Allow members to tag/notify others via @<username> syntax

Count Number of Own Posts in Topic View

send a customizable email to inactive users and automatically delete them.

Ribbon at the top of the topic display that will show only if there are new posts.

Allows to add different groups of custom fields to forum posts and filters for fields of posts

Display Additional Membergroups in Topic and Profile view

Best Answer Best Solution

Adds a menu near the footer