[Slackbuilds-users] System-wide addons for Seamonkey and Firefox?

[King Beowulf]

On 09/07/2012 01:48 AM, Niki Kovacs wrote:
> Hi,
>
> I'm a happy user of SBo, using nearly 200 packages built courtesy of 
> the SlackBuild scripts here (numerous pats on many shoulders). There's 
> only about two dozen packages where I had to either alter the scripts 
> to fit my needs or write some from scratch.
>
> Now there's one set of addons left where I'm banging my head against 
> the wall^^^^^keyboard, that's the extensions for Seamonkey and/or 
> Firefox.
>
> I live in France, so the vast majority of the systems I install here 
> are in French. Though there is a small german-speaking community in a 
> village nearby, and I also provide some installs for these folks (I'm 
> Austrian, so german is my native language).
>
> Slackware being not exactly an i18n-friendly distribution, I'm more or 
> less searching in vain for translation packages. I'm mainly a 
> Seamonkey user for web & mail, so of course, once it's installed, I 
> can open the addons page and grab the corresponding .xpi packages for 
> translations and Adblock Plus (a must-have addon). But when installing 
> a network with more than fifty users, this solution is not viable.
>
> As a temporary workaround, I've created a template user, installed all 
> the needed addons, modified the configuration and then packaged all of 
> ~/.mozilla to be installed into /etc/skel. But this is the Quick & 
> Dirty solution. My packaging skills stop here.
>
> If anyone of you guys knows how to build real clean packages for 
> system-wide browser addons, I would really be grateful.
>
> Cheers from my little South French village,
>
> Niki
did you look at

https://developer.mozilla.org/en-US/docs/XPI

AFAIK, .xpi is just a zip file with the java file, data and a 
java(script) installer.  You can download the extension.xpi (wget etc) 
and then just repackage for Slackware.