Safari is the default and a pretty good browser for Mac. There are many cool things about Safari, including Top Sites, Cover Flow, Reading List, etc. Although Safari doesn't have an extension library like Firefox, you can still find a YouTube downloader extension to download YouTube videos from Safari.
Wondershare AllMyTube for Mac, one of the best Safari YouTube Downloaders, installs extensions to add YouTube Download feature to Safari so that you can download any YouTube video with a click. It's also a YouTube converter to turn YouTube videos into MOV, MP4, M4V, MP3 and any other regular video/audio formats you want. Besides YouTube, an extra 40+ video sites like Facebook, Vevo, Vimeo, Metacafe, Megavideo, and Dailymotion are also supported.
Using AllMyTube to download YouTube videos in Safari is a piece of cake. Below is how you can grab YouTube videos off Safari and convert YouTube videos to MOV to play with QuickTime Player.
1 Browse YouTube Videos in Safari
Firstly, download and install AllMyTube for Mac. Then launch Safari browser and find videos you want to download off YouTube. When you hover your mouse over the video, you may see the "Download" button to the upper right corner.
Tips: How to Install YouTube Downloader Extension to Safari
If you have installed AllMyTube before Safari, or the Download button doesn't appear, you could install the Safari YouTube Download extension manually. To do so, open AllMyTube, click AllMyTube > Preferences, and click the Install button at the bottom of dialog. You need to restart Safari to enable Safari YouTube Downloader extension.
2 Download YouTube Videos from Safari in 3 ways
1). Click the "Download" button directly to start youtube video downloading in Safari.
2). Switch to Download tab on the left and from "Downloads" menu, choose "Enter a URL". Then paste the URL you have copied from Safari, and click "OK" to start downloading YouTube videos.
3). Directly drag and drop the URL to the interface of the YouTube Video Downloader.
3 Convert YouTube Videos (optional)
To play downloaded FLV videos in Mac, you need to convert them to MOV, M4V or other Mac friendly formats. AllMyTube knows your needs. With it, you could convert YouTube to video/audio in any popular format. To do so, first switch to Library tab and check the boxes in front of videos you want to convert. Then click "Convert" button to select output format. Finally click OK to start converting YouTube videos.
It's worth mentioning that you can use this Safari video downloader to watch YouTube FLV video with the built-in video player. Just double click the video item to enjoy with full-screen. Also, you can add your local FLV videos for convenient playback or conversion with this YouTube video converter. To do this, right click any space in the "Download" library and select "Import" to load them.
View below step-by-step video tutorial:
Safari YouTube Downloading Tips:
1. There is a specialized use to download YouTube to FLV in Safari for Mac: When you open a video on YouTube with Safari, press Command+Option+A to open the Activity windows, then double-click on the item larger than 0.5M (usually 5M depending on the video length). The Downloads window will show up and a YouTube FLV video is downloading. However, QuickTime doesn't support FLV, you need a video converter to convert FLV to MOV or other QuickTime compatible formats.
2. Get Free YouTube Downloader if you want only download Safari YouTube to FLV instead of other formats.