Take note that the Salesforce & Jira Service Desk Connector is only supported on platforms that are specified below.
The Connector supports all the browsers supported by Jira Cloud.
All Jira Cloud editions are supported: Jira Core, Jira Service Desk, and Jira Software.
However, the features are only visible on Jira projects of "Service Desk" type.
Only Salesforce Enterprise, Unlimited, Performance and Developer edition are supported. This covers both production and sandbox instances.
Salesforce Professional support is currently unconfirmed.