Add support for Firefox in Talkbuchet CLI
Add support for Firefox in Talkbuchet CLI

Firefox requires asynchronous functions to be executed using
"executeAsync", and logs to be got using the BiDi protocol.

Signed-off-by: Daniel Calviño Sánchez <bd7629e975cc0e00ea7cda4ab6a120f2ee42ac1b@gmail.com>

nextcloud/spreed,nextcloud/spreed,nextcloud/spreed