It doesn't. And doesn't even have the permission to access your browsing history, but for some reason Google thinks it does. From the manifest file: https://git

It doesn't. And doesn't even have the permission to access your browsing history, but for some reason Google thinks it does. From the manifest file: https://github.com/antimatter15/drag2up/blob/master/manifest.json https://github.com/antimatter15/drag2up/blob/master/manifest... "permissions": ["* ://* /","tabs","contextMenus", "unlimitedStorage","notifications"] The first one is permission to communicate with arbitrary servers in order to download URLs and upload files. Tabs is used to interact with OAuth-powered hosts better. The rest just leaves room for future additions (reuploading images from a context menu, storing a cache of uploaded files, notifications for completed uploads, etc.). It doesn't request for permission to access history, and I have no idea why the Chrome web store says that that's a required permission.