Anyone using firefox having issues - DUCKDUCKGO could be it.
Using Firefox airbnb just quit functioning on me all of a sudden in the middle of setting up a new listing. Total shut down.
Opening page would load, but no input would work, be it guest or host, not even login. Just an infinite spinning wheel.....
Spent half a day cleaning resetting reformatting hardware software wifi etc. NOTHING worked.
Then tried different browser: Safari opened, no problems at all. (Never use Safari so it is 'factory setting'.)
Found this thread. Went into Firefox extensions.
The only one I have/had is 'duckduckgo'.
Disabled and there is was, Airbnb returned to full functionality.