Connection settings for Chrome browser are different in Firefox.
Settings are located in program folder in config files:

• base_cr.exe.config for ZennoPoster
• pminstance_cr.exe.config for ProjectMaker and CodeCreator

The files contain config parameters in xml format(see image below) including connection settings in section appSettings.

Here is the list of connection settings:

• zl-max-sockets-per-pool - number of connections in a pool (there are several pools in browsers working for all tabs)
• zl-max-sockets-per-group - number of connections per domain
• zl-max-sockets-per-proxy - number of connections per proxy
• zl-max-sockets-per-pool-ws - number of connections per pool for WebSocket
• zl-max-sockets-per-group-ws - number of connections per domain for WebSocket
• zl-max-sockets-per-proxy-ws - number of connections per proxy for WebSocket
• zl-used-idle-socket-timeout-s - lifetime of inactive used socket (sec)
• zl-unused-idle-socket-timeout-s - lifetime of inactive unused socket (sec)
• zl-close-idle-connection-interval-s - interval for clearing inactive sockets (sec)
• dns-over-proxy - dns requests via proxy

Connection settins should be changed in config file before running the program to take affect.