798262 - Extensions xpinstall.enabled

Status: RESOLVED DUPLICATE of bug 668999

(Firefox :: Untriaged, defect)

Description

[benjamin.dilbens]

Attachment: FirefoxEinstellungenTest10_0_7.js is our config file we use to configure the FF.

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:10.0.7) Gecko/20100101 Firefox/10.0.7
Build ID: 20120824135927

Steps to reproduce:

We´d like to block the Option to install Extensions after the installation in our Company.
We used the mechanism >lockPref("xpinstall.enabled", false);<in the past but since we upgraded to ESR 10.0.7 it doesnt work anymore. I tested the FF 15.0.1 too, but even there it´s not working!


Actual results:

it seems like the mechanism xpinstall.enabled is ignored by FF. 
at about:config  we see that the mechanism is set right but the option to install extensions is still active!


Expected results:

The Option to install Extensions should be blocked!

Comment 1

[Matthias Versen [:Matti]]

setting xpinstall.enabled to false works for me with 
Mozilla/5.0 (Windows NT 6.1; rv:15.0) Gecko/20100101 Firefox/15.0.1

I get an "addon installing is disabled" warning if I click on an addon link at https://addons.mozilla.org/

How did you check that an addon install wasn't possible ?
You want to read  http://mike.kaply.com/2012/07/03/customizing-firefox-blocking-add-ons/

Comment 2

[benjamin.dilbens]

I checked again, i put together a new VM with nothing but windows installed.
Then i downloaded FF15.0.1 and added the xpinstall.enabled mechanism. and it still didnt worked! 

I checked by going to >Extras -> Addons -> and then searched for anything an i was able to install everything....:(

how did you add the xpinstall.enabled function? i did it through about:config and through the .js file. Both ways didnt work for me...

Comment 3

[benjamin.dilbens]

me again. i found out that when i add the function xpinstall.enabled i can search by "Addons" then click on the desired Addon and FF tells me that the installation is blocked! 

BUT! when i search at extensions for the same desired addons i can install it with no problems...

is there no other way to FULLY block addon installation?

Comment 4

[Matthias Versen [:Matti]]

>is there no other way to FULLY block addon installation?
That's explained in the URL I posted in comment#1

Comment 5

[benjamin.dilbens]

ok, but is the functionality with xpinstall.enabled installed and be able to install addons on the extensions page right? to block the installation for addons makes no sense when users are able to install them anyway on a different page.

I´ll try to work out a way with the link you gave me. Then i´ll come back to you! :)

thanks in advance!

Comment 6

[Matthias Versen [:Matti]]

looks like a dupe of bug 668999 (via bug 724249)

Comment 7

[benjamin.dilbens]

can b closed! Thanks Matti.