since the program use embeded firefox as browser engine
you can set the firefox preference
the preference can find when you input about:config in firefox
then you can check the specific meaning by reference official document
currently, it has intergrate linux and windows firefox binary folder in this project, which loacte at src/WegouSharp/Resource/firefox_***
by default, the config file (wegousharpsettings.json) have the value "UseEmbededBrowser":true ,
youc can remove thoset file in resource/firefox_*** if you want to reduce the size . but make sure you have also to change to setting as "UseEmbededBrowser":false and have install firefox to your system(add to system path , so that yo can start firefox anywhere)