Getfvid - Getfvid is an online tool that allows you to convert any Facebook video to mp3 or mp4 and download them without paying any fees.
Imagus - The extension is intended to complement image features that (I think) is missing from Opera by...
Inflact Facebook Downloader - Inflact provides an online Facebook Downloader tool designed to help you save content from any public Facebook account to your device by copying and pasting its URL in the text box and clicking on the download button.
Image Max URL - Help find larger or original versions of images, including a customizable image popup feature
VideoDownloader.io - Download any online video from your favorite websites
Thumbnail Zoom Plus - The official site of the Thumbnail Zoom Plus add-on for Firefox