When using Firefox, if you visit this page: Promo Codes, Coupons & Cash Back | Rakuten – you can see an icon to click to add Rakuten to Firefox, but the link goes nowhere.
I just did a refresh of Firefox and surprised to find this extension is no longer available. I just used it yesterday! I’ll email Rakuten to see if they have any idea what’s going on.
Response from Rakuten:
" Thank you for reaching out to us. We are aware of this issue and our development team is currently working on a resolution. In the meantime, please shop directly through the Rakuten mobile app or Rakuten.com."