I've downloaded 1222 videos so far with this addon. After trying dozens of extensions, I could only recommend 2 of them. This is one.....

PROS:

- Grabs the video title so you get a proper filename!!
- Can retain videos from closed tabs
- Quick default download using 'shift+click'

CONS:

- Streamable video files get corrupted if stream ends before video is saved

SUGGESTIONS:

- Would be nice to avoid downloading duplicate files