Jira Issue: Full Width is a free Chrome add-on developed by harshadewa. This add-on falls under the category of Browsers, specifically the subcategory of Add-ons & Tools.

The main feature of Jira Issue: Full Width is its ability to expand the issue window in JIRA using the full width of the window. This allows users to have a wider and more spacious view when reading JIRA issues. By utilizing the full width of the window, users can have a better overview of the issue details and content, making it easier to navigate and analyze the information.

Overall, Jira Issue: Full Width is a helpful add-on for JIRA users who prefer a wider view when working with issue details. With its simple functionality, it provides an enhanced user experience by utilizing the full width of the window for better readability and comprehension.