Improve Cookie settings
about:preferences#privacy
Before: [_] Accept Cookies from sites
After: [_] Accept Cookies from clearnet sites [X] Accept Cookies from .onion sites
I had to add my .onion site to "Exceptions"(Allow for session). It automatically cleared when I restart the browser.
Please make this permanent by: a) Add new option: [X] Don't clear my cookie exceptions list. b) Or, add new cookie option, like above.
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information