This plugin features an attribute system for Confluence pages, such that attributes can be configured for a space and attribute values can be entered when creating or editing pages. These values can be searched using a specific search syntax.
This plugin features a custom field type, that makes it possible to encrypt and decrypt values before sending to the server (the JIRA server never sees the secret data).
This features an addon for Mac Mail (Mavericks and Yosemite versions) that makes it possible to create issues and add comments directly from the Mac Mail app, by copying the email subject and body.
This plugin features a convenient and fast popup for creating issues: a simple text box with a straightforward formatting syntax. The syntax is easy to learn, and powerful enough to insert all kinds of fields.