Sorry to spam this bug, but I keep posting prematurely. Don't put the extension in ~/.config/chromium/Default/Extensions/ because it seems to get deleted there. Put it somewhere else. Also, after installing/unpacking the extension, I believe you need to restart your browser before the extension creates the file that the uploader uses to get the extended info.
Sorry to spam this bug, but I keep posting prematurely. Don't put the extension in ~/.config/ chromium/ Default/ Extensions/ because it seems to get deleted there. Put it somewhere else. Also, after installing/ unpacking the extension, I believe you need to restart your browser before the extension creates the file that the uploader uses to get the extended info.