MyBB Community Forums

i wanna make my thread url like the ones in mybb forum where it would look domain.com/thread-74904.html

which plugin is this?

this myBB community is using myBB's internal SEF URLs

admin panel --> configuration --> settings --> Server and Optimization Options -->
Enable search engine friendly URLs? <-- select Automatic Detection OR Enabled and use
.htaccess for the rewrite rules . sample .htaccess is available as text file in myBB package