Generally excellent app but with two flaws. One: the compression on videos from Twitter (it may happen elsewhere but this is where I've noticed this bug) introduces a stutter throughout the video clip, which is a great shame. It forced me to locate a dedicated website to download Twitter videos - although it's no use on a private/locked account. Two: if there is a lot of downloadable media on a page it's very difficult to discern which is the correct/best quality version of a file to download from a list. Otherwise, I've been using this add-on for a long time and it's great overall.