Works with photos but the extension is not as fluent as the one in Chrome
2 Issues I am currently experiencing, if you can make it behave like the extension in Chrome it will be better.

1. Does not download videos on the website. I have to save the link and input it in the + icon on the software. Not as fluid as I hope.
2. Ctrl + S usually for downloading videos and images goes directly to the FDM software like chrome but I cannot do it in firefox I have to right click and save in FDM and for videos I have to copy the link with the video and paste it on the software. I wish it would be like chrome where you can just click ctrl + S and it opens the software automatically with the link inputted automatically.

Please update and improve the extension!

Only positive note is the Dark Theme. Love it and don't take it off.