Your browser has not provided any parameters at all and your input has been lost. Press back now to try and resend the data. This is most likely caused by a bug in the browser. FireFox 3.6.0 have been known to exhibit this behavior.
For more information see this bug report Documentation
JIRA could not complete this action due to a missing form token.
You may have cleared your browser cookies, which could have resulted in the expiry of your current form token. A new form token has been reissued.
Request URL: /secure/AssignIssue.jspa
Please log in and retry this action.
Please refer to this page for details on disabling form token checking.