Package for Firefox

[whinis]

The extensions framework is mostly universal now, so with minimal changes this same addon should work for firefox.

All I had todo to get it work locally is the following
Change references to chrome-extension referenced pages to just use absolute urls
chrome-extension://${chrome.runtime.id}/options.html => /options.html

add in manifest v2 keys
"action": copied keys into => "browser_action":

"service_worker": "background.js" => "scripts": ["background.js"]

"options_page": "options.html", =>

"options_ui": {
		"page":"/options.html"
	},

Also added in a addon-id locally so that storage would work. Otherwise no changes in javascript was required.