Unable to attach files, reassign ticket, move ticket to sprint using Firefox browser

Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.

Note that this KB was created for the Data Center version of the product. Data Center KBs for non-Data-Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.

*Except Fisheye and Crucible

Summary

Problem

Unable to perform the following action in Jira when using Firefox browse

  • Attach files

  • Reassign Ticket

  • Move ticket to Sprints

Environment

Jira Data Center on any version

Diagnosis

The issue only happen in Firefox, when tested in other browser such as Chrome & IE, no issue in performing any actions.

Cause

"Safe browsing" is enable in Firefox that limits some functionality for Jira.

Solution

Resolution

Disable the "Safe Browsing"

  1. Open your Firefox and browse through Tools/Security/

  2. Uncheck "Block reported attack sites" and "Block reported web forgeries"

  3. Clear the browser's cache and retest

Updated on April 2, 2025

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