WellingtonIS
asked on
Block Install of Firefox
My machines are locked down and my users have no rights to install anything, however, one user was able to install firefox. We can't use firefox in this environment because of certain software that's not compatible with it. Is there some way, (GPP or GPO) I can stop users from installing this? If so how?
yeah, you can use a GPO with software restriction policy to prevent:
the hash of the main firefox executable (obtain various to get the console analyze them)
the name of the exe (i mean firefox.exe).
Pay serious attention when enabling SRP and test it on a test-OU before.
You should leave an enable all/deny specific policy for the ease of implementation IMO.
the hash of the main firefox executable (obtain various to get the console analyze them)
the name of the exe (i mean firefox.exe).
Pay serious attention when enabling SRP and test it on a test-OU before.
You should leave an enable all/deny specific policy for the ease of implementation IMO.
The correct path is:
computer settings->windows settings->security settings->software restriction policies.
computer settings->windows settings->security settings->software restriction policies.
ASKER
Will GPO Applocker work on XP machines?
Windows 7 introduced an enhanced version of this called AppLocker
for XP Software Restriction Policies
for XP Software Restriction Policies
ASKER
OK great I will test this. Thanks!
ASKER
I did the following. See attached and tried it on my test machine. I WAS able to install it. I also turned on Application Identity too as instructed in the instructions... Do I make the Scope the machines or the users? (Maybe that's my issue?)
GPO.png
GPO.png
run Gpupdate.exe /force on client machine and verify
ASKER
Ran that and also RSOP it's applied.
OK, you was able to install it.
Are you able to use it?
I mean: I told you to get hashes for the main firefox executables because IMO it's useless to block the installers...
There are also portable versions of firefox that doesn't require the setup....
Are you able to use it?
I mean: I told you to get hashes for the main firefox executables because IMO it's useless to block the installers...
There are also portable versions of firefox that doesn't require the setup....
ASKER
Yes you're correct about the portable part. I'm now trying to block the %osdrive%\User\%username%\ AppData\Lo ca\Mozilla \* -
Why?
Why don't you block path *\firefox.exe and all the firefox.exe file versions hashes?
Why don't you block path *\firefox.exe and all the firefox.exe file versions hashes?
ASKER
just did thanks. Let's see if that works.
ASKER
Wow this thing is a Beast! I can't stop the installing no matter what I do? It installs and works.
ASKER
In addition I added the following security settings too to try to stop the install in Appdata..
additional.png
additional.png
ASKER
OK if I do an RSOP on the server (Advanced View) the Application Control Policy isn't showing up... I wonder if that's my issue...
ASKER
ok I FINALLY GOT IT to work! It does install but you can't run it.
You have to block
C:\users\%username%\AppDat a\Local\Mo zilla Firefox\*.*
I don't know the path for XP. Anyone???
You have to block
C:\users\%username%\AppDat
I don't know the path for XP. Anyone???
ASKER
Strangely enough, just doing the app blocker didn't do the trick for me. I had to add the registry setting too. I will install but it will not run.
For XP I had to use c:\documents and settings\%username%\Local Settings\Application Data\Mozilla firefox\Firefox.exe
Once I added that and the other registry setting for windows 7 it worked. I'm not sure why just running the app blocker didn't fix the issue.
the other thing with the APP blocker is unless you have the app installed you can't block it. That to me doesn't make much sense but OK.
For XP I had to use c:\documents and settings\%username%\Local Settings\Application Data\Mozilla firefox\Firefox.exe
Once I added that and the other registry setting for windows 7 it worked. I'm not sure why just running the app blocker didn't fix the issue.
the other thing with the APP blocker is unless you have the app installed you can't block it. That to me doesn't make much sense but OK.
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ASKER
thx this worked.
http://technet.microsoft.com/en-us/library/bb457006.aspx
http://technet.microsoft.com/en-us/library/dd723678(WS.10).aspx