For example my countdown mod:
Here exists the function countdown(); as javascript (if the countdown is switched on).
On the last lines of your overall_header.tpl you can find
Code: Alles auswählen
<script language="JavaScript" type="text/javascript">countdown();</script>
This line will start the javascript function "countdown()" at this point to start the countdown on Mozilla/Firefox on page loading, too..
For other functions, like your snowfall mod or the slidemenu, you can use this line to start another javascript functions at the same way.
You must only insert this line with the name for the needed function (here countdown(), for slidemenu or snowfall the needed functions from the mods).
And by doing this, Mozilla Browsers will start the javascript, too
At least I mean this is the reason the number of new posts will work probertly, if you install each javascript like the mods describes them and only add the line above to run the needed javascript on mozilla, too.
The method to get them work on Mozilla like you install the javascript at the php file will work, but maybe not correct...
BTW:
Other browsers like the IE will start the javascript and ignore the second call, which is needed only for gecko based browsers like Mozilla/Firefox.