Here are the top 3 alternative websites to GetvidFB (which was primarily a tool for downloading Facebook videos), based on functionality, safety, and ease of use:

1. FBDown.net (Best Overall)

FBDown.net is widely considered the industry standard for downloading Facebook content. It is the direct successor to many of the tools that have been shut down over the years and is highly reliable.

Features: It allows you to download videos in high quality (HD) and even extract the audio as an MP3 file.
How it works: Copy the link to the Facebook video, paste it into the box, and click "Download." It works seamlessly on both desktop and mobile browsers.

2. SnapSave.app (Most Versatile)

SnapSave is a powerful alternative that goes beyond just Facebook. If you ever need to download from Instagram, Twitter, or TikTok, this is the best Swiss Army knife option.

Features: High-quality MP4 downloads and MP3 conversion. The interface is very clean and ad-free compared to most other sites.
How it works: Paste the video URL, and the server processes the file instantly, offering you different quality options.

3. SaveFrom.net (The Legacy Option)

SaveFrom.net is one of the oldest and most trusted names in the online video downloading space. While their main website is cluttered with ads, the core functionality for Facebook is very stable.

Features: They offer a browser extension (for Chrome/Firefox) which allows you to download videos directly from your news feed without copying and pasting links.
How it works: You can either paste the URL on their homepage or simply add "savefrom.net" before the word "facebook" in the video URL (e.g., savefrom.net/https://www.facebook.com/...).

Important Disclaimer

Please remember that downloading videos from Facebook may violate Facebook is Terms of Service. You should only download videos for personal use, and always respect the copyright and ownership of the content creator.