Norton Toolbar Not Compatible With Firefox 34.0.5

I have seen other threads about this problem and the answer is usually the link to the Product announcement update saying it is now compatible. But the announcement doesn't actually give a link to the update.  How can I update this to a compatible version?

My add-on menu just says Norton Toolbar 2015.1.0.24 isn't compatible and I don't understand how to make it compatible.