JIRA Studio comes with a set of pre-defined plugins. Customers are not permitted to install new plugins or remove existing plugins. Requests for additional plugins should be created as feature requests in the JIRA Studio project at http://jira.atlassian.com.
Issues (JIRA)
The only non-core plugins that are installed with JIRA are:
Customers may enable or disable pre-existing non-system plugins only.
Reviews (Crucible)
While Crucible 1.2 boasts a beta plugin API, we do not currently offer any plugins for Crucible.
Wiki (Confluence)
The plugins listed below are installed on Confluence and enabled by default. Requests for additional plugins should be created as feature requests in the JIRA Studio project at http://jira.atlassian.com.