The version of Sticky Password that I have is:
Sticky Password Pro v184.108.40.2065
Here are the details from the Steam client:
Steam client application
Built: Oct 22 2012, at 17:49:03
Steam package versions: 2026 / 2026
I have viewed the link that you have provided, but I don't understand what may be going wrong. I've tried deleting my account info within Sticky Password and then starting Steam. I then click the Sticky Password button in the titlebar and select "Add Account". I fill in the details and then ensure that it saves.
I then close the steam client application and launch it again. Sticky Password does not auto-fill the entry fields and, when I click the Sticky Password button in the titlebar it only shows "Add Account" even though I already have one saved in Sticky Password.
Is it possible that Steam has updated their application and "broken" this ability in Sticky Password?
I can confirm that it works 100% with other applications and webpages, except for https://www.officialnintendomagazine.co.uk/
(that I already opened a thread for, previously, but found a suitable work-around for the time being)