Odd Sandboxie Plus 1.3.2 'Security Hardened Sandbox' issue

Windows 10 21H2 (64-bit)
Firefox 104.0.1 (64-bit)
Sandboxie Plus 1.3.2 (64-bit)

I've visited several (50-100) different web sites using Firefox and Sandboxie Plus with 'Security Hardened Sandbox,' and never had an issue except for one website. If you go to https://www.usps.com (United States Postal Service) and enter a tracking number to search/track a package, Firefox crashes. The search/tracking takes you to https://tools.usps.com (Direct link to United States Postal Service Tracking) which crashes Firefox.

The setting that's causing the issue is 'Use the original token only for approved NT system calls' under the Security tab. When this setting is checked, the web site crashes. If the setting is unchecked or I use 'Standard Isolation Sandbox (Default)' everything works. If I use Firefox outside of Sandboxie (not sandboxed), everything works. This is the only web site that I found that's causing Firefox to crash when using 'Security Hardened Sandbox' with the setting 'Use the original token only for approved NT system calls.' Is this normal or suppose to happen?

 

Perhaps it's this issue?
https://github.com/sandboxie-plus/Sandboxie/issues/2190

Try adding this to your Sandboxie config, then reload your ini file:
ApproveWinNtSysCall=SubscribeWnfStateChange

 

That was it! I added ApproveWinNtSysCall=SubscribeWnfStateChange to [GlobalSettings] in my Sandboxie config file then saved it. The trick was to go to Options menu and select 'Reload ini file' to get it to work. Thanks for the link and fix!

 

Thanks, will be included in the next build