Modify about:config and allow pop ups for multiple systems

Question

What I need to accomplish:
security.mixed_content.block_active_content = False
Allow all pop-ups from salesforce.com
I need to do this for 70 computers within my domain.
To modify about:config, I've tried editing user.js (I had to create the user.js file as it did not exist in my profile folder) using the batch file below.
Batch File to edit user.js
cd /D "%APPDATA%\Mozilla\Firefox\Profiles\*.default"
echo user_pref("security.mixed_content.block_active_content", "false");>>user.js
I've read that the permissions.sqlite file can be edited to allow the pop ups, is there a way for me to edit that from a batch file?
Are these modifications possible without having to visit each user?

Answer 1

You can also use a mozilla.cfg file in the Firefox program folder to specify new (default) values for refs.
*http://mike.kaply.com/2012/03/16/customizing-firefox-autoconfig-files/
Place a local-settings.js file in the defaults\pref folder where also the channel-prefs.js file is located to specify using mozilla.cfg.
pref("general.config.filename", "mozilla.cfg");
These functions can be used in the mozilla.cfg file:
defaultPref(); // set new default value
pref(); // set pref, but allow changes in current session
lockPref(); // lock pref, disallow changes
See also:
*http://kb.mozillazine.org/Locking_preferences
I don't know of a way to easily modify the permissions.sqlite file to add an allow pop-up exception.<br />
You would need an SQLite manager program that accepts command line input to add such a record.<br />
The main problem would be to get the ID value to be used.
*INSERT INTO "moz_hosts" VALUES ("<id>","www.salesforce.com","popup","1","0","0","0","0");