Jira Time Spent Sum is a simple Chrome extension developed by Patrick Kunzke. It falls under the category of Browsers and is specifically categorized as an Add-ons & Tools subcategory. This extension is designed to add the time spent sum of all displayed issues in Jira to the header column.

The functionality of Jira Time Spent Sum is straightforward and easy to understand. Once installed, it works exclusively in Jira cloud with the default Atlassian URL scheme and only in English. When viewing the issues in Jira, if the "Time Spent" column is present in the table, the extension will automatically calculate and display the sum of the time spent for all the currently displayed issues.

It's important to note that the sum calculation includes only the values of the issues that are currently visible on the page. If you want to view the sum of all issues resulting from your search query, you can utilize the bulk edit view, where the sum will also be added to the column header.

Overall, Jira Time Spent Sum is a useful Chrome extension for Jira users who want to quickly and easily view the total time spent on their displayed issues. It provides a convenient way to track and manage time spent within the Jira platform.