When I click on Add-On Support it says Page Not Found. That's pretty basic. Screenshot attached. This is not a button/link for a specific add-on, it's for Firefox as a whole. Additionally, when I use LastPass, the LastPass icon does not appear anywhere I can access it, which is a basic feature that works properly in Chrome. I use this add-on multiple times per day which makes it very difficult to use Firefox as my main browser because I can't do 2-clicks to get to my passwords, I have to go to lastpass.com and login to their website, even though the add-on is installed.