See also JIRA Best Practices
Before you can report any bugs, you need to create an account in Jira.
From the main Jira page click on the "Signup" link.
Fill out the registration form completely and submit.
There are several ways to browse the bug reports in Jira.
Using the "Quick Search" field at the upper right corner, search by keyword(s).
The "Home" page contains saved filters
The "Browse Project" page contains project level filters; e.g. by component, assignee, etc.
The "Find Issue" page allows for the creation of a custom query.
Login, if you haven't already done so.
Click the "Create New Issue" link at the top of the page.
For step 1 of 2, you can use the default selections. Click the 'Next' button to proceed to step 2 or 2.
In step 2 of 2 you will need to fill out the form and click the 'Create' button to complete. See Reporting Bugs, for necessary information to include here.