YouTube Video Downloader is an extension compatible with Chrome, Firefox, and Opera. Much like the above-mentioned FastestTube, Video Downloader is installed by heading to the group's website and clicking "Download for Chrome" on the extension page. As before, the page will download and save a .zip file to your Downloads folder, which you can extract right from within your computer's file explorer on either MacOS or Windows. After you've extracted the folder, head into Chrome's extension page by hitting the triple-dotted menu icon in the top-right corner of Chrome and selecting "More Tools," then "Extensions." Once you've opened this page, look for a small checkbox at the top of the page titled "Developer Mode." Check the box, then press "Load unpacked extension..." This will open a file explorer within Chrome; from here, browse to the extracted Video Downloader folder, select it, and hit OK. The extension will automatically add itself into Chrome; you'll know you completed the process correctly when a new tab displaying a Thank You for Installing page opens in your browser.
So, once you've installed the extension, how well does it work? Overall, a bit better than what we've seen previously from FastestTube. In practice, the extension works identical to how we saw FastestTube load—open a YouTube video and you'll see a green download button next to the subscribe button on YouTube's interface. We will mention that we had difficulty getting the button to show up in the newer YouTube interface; sometimes it was there and sometimes it wasn't. The developers are still actively working on this, with the most recent update having rolled out in May, so keep your eyes open for a fix coming soon. That said, when the button does work, you get a ton of different download and saving options for both music and video formats, making it really easy to save whatever you need from YouTube for your own use.
There's a whole page of options that can be edited as well, making it easy to change settings and preferences on the fly. You can change the file format options that are show within the download interface, including formats like MP4, FLV, and WEBM. MP3-only files are also available for download, making it easy to choose your favorite songs or music tracks for download from YouTube. Video Downloader has an option to add a screenshot button, which, with one tap of a button, allows you to automatically save and download a PNG formatted photo screenshot from the video you're watching—super useful stuff. There's some other general enhancement stuff added by Video Downloader too, including a pop-out mode, the ability to minimize the video in the corner while scrolling through the comments section, and so much more.
Overall, Video Downloader is a solid offering, even if some of the bugs keep it from working all the time. The added features and options do help to put it a little over the top of what we've seen from other YouTube downloaders but otherwise, if the new YouTube 2017 UI has rolled out to you, you may see some amount of difficulty getting this one to work. Still, it's a great option to keep on your list.