Unable to access tomcat server running on localhost after enabling SaferVPN extension in Firefox

I have a simple application deployed on my tomcat server. Normally I used to access it through http://localhost:8080/myapp/. The application is initiating some API calls to Facebook developer API. Since Facebook is blocked in my region, I tried to access by installing SaferVPN firefox extension.

After enabling the SaferVPN extension for Firefox I am able to access the Facebook developer API, but my application running on localhost is not accessible.

How can I fix this? Can I configure firefox browser to not use the SaferVPN for local addresses?