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Is there any way to enforce the newish "Click-to-Play" setting for plugins (Java especially) for a domain of Windows systems?

I know I can go around to each of my 100 different users and set their Chrome and Firefox manually, but I obviously want to avoid that with either a GPO or a command-line script.

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In Firefox (except version 14.0.1, due to a bug) you can change the default settings, or lock specific settings, using a mozilla.cfg file. See and – Harry Johnston Sep 5 '12 at 22:31
Thanks, I think that will work for me! – idean Sep 9 '12 at 13:44
If you get it working, please post an answer for future viewers, preferably including the contents of mozilla.cfg. – Harry Johnston Sep 9 '12 at 22:25
After further manual testing with Firefox's implementation of Click-to-Play, we've decided not to go forward with this. While Chrome's implementation worked well, with Firefox it just broke too many sites, with no way to "click" anywhere to "play" the plugins. – idean Oct 5 '12 at 12:30
up vote 2 down vote accepted

Chrome 23 supports Click-to-Play through the DefaultPluginsSetting policy. The details at haven't been updated yet, but that policy can use value 3 to enforce click to play for plugins.

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