manaba未提出課題を隠す is a free Chrome add-on developed by Kobashun. It falls under the category of Browsers and is classified as an Add-ons & Tools subcategory. This extension is designed to hide selected tasks from the "未提出課題" (unsubmitted tasks) list in manaba, an educational support system used at Tsukuba University. By hiding unnecessary tasks, users can improve the visibility and organization of their task list.

The operation of this extension is quite simple. Users can hide a task by clicking the "隠す" (hide) button located at the right end of each task row in the list. Clicking the "隠した課題の表示(非表示)" (Show/Hide Hidden Tasks) button toggles the visibility of the hidden tasks list. If a hidden task needs to be displayed again, users can click the "戻す" (Restore) button located at the right end of the hidden tasks list.

It is important to note that this extension is unofficial and not affiliated with the university. Therefore, the developer cannot be held responsible for any disadvantages or issues that may arise from using this extension.