Mozilla Firefox dont start properly (no windows) while sandboxed

Hi Thomas,

Start by deleting the contents of your Sandbox, and then if needed, testing in a new Sandbox with default settings.  

If the problems persist, please, provide all the info as per guidelines so that we can test and assist you:
How to report problems with Sandboxie

Adding to the above listed, also include your configuration file:
Configure--> Edit configuration
Copy-paste the contents here.

Thanks!

Hi,

new Sandbox didnt help.

Here are my details:

Windows 10 Pro 1903 (problem exists also prior update)

Mozilla Firefox 67.0.2 64-Bit with the following extensions:

- uMatrix

- Turn off the lights

- HTTPS Everywhere

- Decentraleyes

GDATA 25.5.3.4 (Web Protection is disabled)

Starting FF outside Sandboxie works; inside Sandboxie it starts, but no GUI visible

Grretings

Thomas

PS: here is the content of Sandboxie.ini:

[GlobalSettings]

Template=AdobeAcrobatReader
Template=7zipShellEx
Template=WindowsRasMan
Template=SynapticsTouchPad
Template=WindowsLive
Template=GDataInternetSecurity
Template=SnagIt
Template=nVidia_Stereoscopic3D
Template=OfficeLicensing
Template=OfficeClickToRun
ForceDisableSeconds=30

[UserSettings_11FC028D]

SbieCtrl_UserName=thomas
SbieCtrl_NextUpdateCheck=1560612404
SbieCtrl_UpdateCheckNotify=n
SbieCtrl_ShowWelcome=n
SbieCtrl_HideWindowNotify=n
SbieCtrl_WindowCoords=250,324,974,556
SbieCtrl_ActiveView=40021
SbieCtrl_ProcessViewColumnWidths=250,70,300
SbieCtrl_AutoApplySettings=n
SbieCtrl_AlwaysOnTop=n
SbieCtrl_ExplorerWarn=n
SbieCtrl_RecoverTarget=C:\Users\Thomas\Downloads
SbieCtrl_SaveRecoverTargets=y
SbieCtrl_TerminateWarn=n
SbieCtrl_BoxExpandedView=Firefox

[UserSettings_29F403ED]

SbieCtrl_UserName=adm.thomas
SbieCtrl_ShowWelcome=n
SbieCtrl_NextUpdateCheck=1558266750
SbieCtrl_UpdateCheckNotify=n
SbieCtrl_WindowCoords=7,0,1279,680
SbieCtrl_ActiveView=40021

[Firefox]

Enabled=y
ConfigLevel=7
AutoRecover=y
BlockNetworkFiles=y
Template=qWave
Template=WindowsFontCache
Template=BlockPorts
Template=LingerPrograms
Template=Chrome_Phishing_DirectAccess
Template=Firefox_Phishing_DirectAccess
Template=AutoRecoverIgnore
RecoverFolder=%{374DE290-123F-4565-9164-39C4925E467B}%
RecoverFolder=%Personal%
RecoverFolder=%Favorites%
RecoverFolder=%Desktop%
BorderColor=#00FFFF,ttl

Hi Thomas,

Do other browsers start Sandboxed?
Does the issue happen for both your user account and your admin one?(You have 2 users listed in the output)

A few things to try:

1 - Remove all the FF extensions (probably easier if you create a new Firefox profile under the current user) -> delete the contents of your Sandbox --> retest

2 - If the above fails, with the new profile and an empty Sandbox do the following:
Configure --> Software compatibility --> Find your GDATA template, remove it. Re-test [Try the same with the nVidia template if needed ]

3 - If all fails, try removing your AV for testing purposes, reboot , delete the contents of your Sandbox and re-test (once confirmed whether Firefox works or not, please re-install your AV software - If it works without your AV, you'll need to find out exclusions for Sandboxie, here are some examples based on other antivirus software, exclude Start.exe""License.exe""SandboxieBITS.exe""SandboxieCrypto.exe""SandboxieDcomLaunch.exe""SandboxieRpcSs.exe""SandboxieWUAU.exe""SbieCtrl.exe""SbieIni.exe""SbieSvc.exe").

Regards,

Barb@Sophos said:

Hello,

> Do other browsers start Sandboxed?

 

Yes. IE11, Chrome and Edge.

> Does the issue happen for both your user account and your admin one?(You have 2 users listed in the output)

Thats something i have to check.

> A few things to try:

> 1 - Remove all the FF extensions (probably easier if you create a new Firefox profile under the current user) -> delete the contents of your Sandbox --> retest

Didnt solve it.

> 2 - If the above fails, with the new profile and an empty Sandbox do the following:
> Configure --> Software compatibility --> Find your GDATA template, remove it. Re-test [Try the same with the nVidia template if needed ]

Didnt help either.

> 3 - If all fails, try removing your AV for testing purposes, reboot , delete the contents of your Sandbox and re-test (once confirmed whether Firefox works or not, please re-install your AV

> software - If it works without your AV, you'll need to find out exclusions for Sandboxie, here are some examples based on other antivirus software, exclude

> Start.exe""License.exe""SandboxieBITS.exe""SandboxieCrypto.exe""SandboxieDcomLaunch.exe""SandboxieRpcSs.exe""SandboxieWUAU.exe""SbieCtrl.exe""SbieIni.exe""SbieSvc.exe").

Havent tried deinstallation; but exclusions didnt help.

Greetings

Thomas

 

Hi Thomas,

Thanks for the update. Sorry to hear the problems persist. I still cannot reproduce the behavior.
Please, test removing the AV as suggested, and also test your other account to see if there is any difference in the outcome. 

Another thing we can try is see what's trying to launch in the Sandbox when you invoke Firefox. 
Create a new sandbox with default settings
Use a clean firefox profile (no addons for this test)
https://www.sandboxie.com/ResourceAccessMonitor
Start Res. Acc. Mon
Immediately repro the issue and copy the contents of Res. Acc. Mon to your response

Regards,

Hi,

thats interesting. Without AV (GDATA) it works; even with AddOns.

But when i reinstall GDATA, it works until i do the first Signature-Update.

This is somehow...strange...

Greetings

Thomas

Hi Thomas,

Third party software, such as AVs, may interact with Sandboxie, it is not strange unfortunately.

Here's the known conflicts AV section (the forums links won't work, but you can see suggestions for troubleshooting and what to add to exclusions) :
https://www.sandboxie.com/KnownConflicts#Anti-virus%20Related 

Give that a try, there are several entries per AV, I would suggest you try the exclusions route first. You may want to reach out to your AV software support for suggestions as well, now that we have determined that your AV is blocking it. 

Regards,

Hi,

it seems that the Exploit Protection in GDATA is the problem here. When i deactivate it, the problem vanishes.

Greetings

Thomas