From debug:
Code:
Hooks Called:
* init_startup
* fetch_userinfo_query
* fetch_musername
* fetch_userinfo
* cache_permissions
* style_fetch
* cache_templates
* global_start
* parse_templates
* notifications_list
* global_setup_complete
* userdata_start
* userdata_doset
* userdata_presave
* moderatordata_start
* error_fetch
* userdata_postsave
* logout_process
* forumjump
* navbits
* navbits_complete
* error_generic
The plugin is in global_start, which appears in the list. In the above list, all of the hooks it lists are a light grey color, with global_start being black.