Firefox Addon not available

Well I found partly my answers but still not checked if its available for the other browsers as well. At Simplify home page if you click to the button [Add to Firefox'] the link will take you to

Firefox page at

https://addons.mozilla.org/en-US/firefox/addon/simplify-jobs/?utm_source=simplify&utm_medium=landing

stating that you remove this extension. Since you have the link at your home page, please update the extension ASAP.