This extension adds "Original" button on the image-embedded tweet in Twitter. Click the "Original" button to open image(s) in original size. This extension is for Chrome (https://chrome.google.com/webstore/detail/twitter%E7%94%BB%E5%83%8F%E5%8E%9F%E5%AF%B8%E3%83%9C%E3%82%BF%E3%83%B3/kmcomcgcopagkhcbmcmcfhpcmdolfijg) and also ported for MS Edge.