The SCP Wiki Old Sidebar extension is a Chrome add-on developed by wolf20482. It is a free extension that falls under the category of Browsers and the subcategory of Add-ons & Tools.

This extension is designed to switch the SCP Wiki website's sidebar back to its old version. It is particularly useful for users who prefer the old sidebar, find the new one confusing, or accidentally click on the wrong option.

Upon visiting the English SCP Wiki and other supported branches, the extension automatically modifies the sidebar if it is enabled. Currently, it supports the SCP-EN and SCP-VN branches, with plans to add support for other translation branches in the future.

One notable feature of this extension is its ability to sync settings across all devices, as long as you are logged in. This ensures a consistent sidebar experience across different platforms.

Overall, the SCP Wiki Old Sidebar extension offers a convenient way to revert to the old sidebar layout on the SCP Wiki, providing a familiar interface for users who prefer the previous design.