Because we send the 'Accept-Encoding: gzip, deflate, br' header we
may receive compressed content (gzip or brotli). Previously this was
handled manually in the wrapper script, however curl has a '--compressed'
flag exactly for that purpose. Add it by default to the wrapper scripts.
As suggested on the Hacker News thread
(https://news.ycombinator.com/item?id=30378562), add support for Firefox
Extended Support Release.
The required changes were adding one more cipher to the
ciphers list and changing the user agent. Apart from that the TLS
fingerprint is identical to Firefox 95 which was already supported.
