cannot download from facebook

Hello

i was able to download from facebook before

but i cant now.

here are my browser details:

Browser: Firefox 74.0 Windows

User Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:74.0) Gecko/20100101 Firefox/74.0

Extension: ff 8.81

i have using installed savenet file in my browser.

ensavenet.png

thanks