MBAE 415 - Acrobate Reader and Firefox do not start/hang

[denial]

Hello,

i just updated to AE build 615 and noticed Acrobat Reader does not start, complaining about AppContainer and Protected Mode (if i disable both, Reader starts).

As well Tor browser hangs after start with empty window and same with Firefox browser, all latest versions.

Chrome works.

After i stop protection in MBAE, all works, incl. acrobat and firefox.

Could you please advise.

Thanks

 

[denial]

Added some screenshots

[crom32]

I am experiencing the same, with both Firefox and Vivaldi. Vivaldi doesn't even launch when protection is enabled.

 

MBAE 1.13.1.415

Windows 10 Pro x64 21H1 (19043.1266)

Firefox 92.0.1

Vivaldi 4.2.2406.54

[crom32]

Upgraded to Firefox 93.0 and the issue persists. Also, it has ruined my Firefox's session even when protection is disabled. With protection disabled, I can actually use the browser, but all of my open tabs are ruined.

[Ehron]

I am experiencing the same issue with Firefox 93.0 and Mbae 1.13.1.415. Tabs no longer load and crash. As soon as i disable protection and restart Browser they work again.

[denial]

I'm including MBAE logs, if it helps, both folders are in one zip.

c:\programdata\Malwarebytes Anti-Exploit\

c:\Program Files (x86)\Malwarebytes Anti-Exploit\

 

MBAE.7z

[hake]

MBAE 1.13.1.415 causes BitDefender Free to cease protecting both Windows 8.1 and Windows 10.  Windows issues a notice that no antivirus is in operation.

[misanthrope]

bonjour, même problème avec firefox (avec about:config personnalisé); la solution rapidement trouvée: dans mbae/settings, désactiver "detect penetration testing attacks" et firefox démarre au quart de tour ;)

pour adobe pdf? aucune idée: virer depuis longtemps, firefox fait le job aussi bien...

 

[Arthi]

Hi All,

Thanks for reporting this issue to us.

Please turn off the following setting as a workaround for now. We will get this fixed as soon as possible and push out another release. Thank you again for your valuable feedback.

 

 

[hake]

No problems with Firefox ESR

[denial]

Actually i'm on FF ESR 78.15 and do have the problem.

My screenshot with hanged FF in #2 post here is FF ESR.

 

[hake]

I have working Windows 7, 8.1 and 10 systems and Firefox ESR 78.15.0 works decently on them all.

The advent of MBAE 1.13.1.415 has caused one very odd behaviour which is that it cripples BitDefender Free (both Windows 8.1 and 10).  The system tray BD icon turns grey and Windows complains that the antivirus is not running. The previous MBAE 1.13.1.407 version did not do this.  Isn't that a clue to the cause of the problem with MBAE 1.13.1.415?

[pentol]

On 10/8/2021 at 10:28 AM, hake said:

No problems with Firefox ESR

Actually THERE IS PROBLEM: with latest 91.2.0esr, Opera, Waterfox etc.

Disabling of shields for those browsers does helps, but we want from MBAE to work in another way.

IT`s an epic fail, Malwarebytes! Do something.

[Arthi]

Hi pentol,

Did turning off Penetration testing switch not help?