blocked app opens web tab when choosing update

Hello,

I have an app in the systray, which upon right clicking, has a menu item ‘check for update,’
that if selected, opens a tab in the browser(firefox.)

I’ve blocked the app in both firewall and defense+, but can’t determine why its permitted to
open a browser window.

how do I stop this action? (other than the obvious, NOT clicking on ‘check for update’)

thanks.

Select the application under Computer Security Policy → Edit → push the Modify button behind “Run an executable” and add your default browser to Blocked program.