Hi,
could somebody help me with my problem, please?
When I open a Firefox window in the CIS sandbox, I only get an empty white page with the address bar and the default buttons. Whatever www address I write to the address bar, I always get only the emty page.
Yes it could just like having two AV installed while one is not active can cause issues, but seeing as you updated firefox and it works, it may not be an incompatibility, but there is a chance that issues could happen in the future when a new version of CIS or sandboxie gets installed.