[qutebrowser] content_headers.user_agent

[LuMiWa]

Hi!

I have a problem for setting content_headers.user_agent:
Mozilla/5.0 {(Windows NT 10.0; rv:110.0) Gecko/20100101 Firefox/110.0}
which works on prev. version of Qutebrowser but now on 2.5.3 doesn't.
The same problem is with 
content.headers.custom where I want to put
{"accept":"text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"}

Thank you and thank you for the Qutebrowser.

-- 
“If you have reasons to love someone, you don’t love them.”
― Slavoj Žižek