Firefox caches fairly aggressively, and it tends to ignore <meta> tags.
While I think it honours headers sent outside of HTML (at the server itself) I am not sure of this.
About the best I can think to do is to try sending PHP headers, if you are capable. If you can use .php files, the code to do this is below:
PHP Code:
<?php
header("Pragma: no-cache");
header("Expires: -1");
header("Cache-Control: no-cache");
?>
Though, I am not the most familiar with this kind of thing. Does a simple CTRL+F5 (forceful refresh, essentially) make Firefox show the new changes?
Jam it back in, in the dark.
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