Steps to reproduce
- Load http://clients.mindbodyonline.com/ws.asp?studioid=20638&stype=-99
- Log in using Email and Password.
- The login will succeed and Firefox will ask if you'd like to save your password, so save it now.
- You will now be on mindbody's "MY INFO" page.
- Click to another section on the page such as "YOGA & MAT CLASSES" or "ONLINE STORE".
The page should switch to the other section.
The page does switch to the other section, but Firefox shows a door hanger asking me if I'd like to change my password to some string that looks base64 encoded (something like "xxxxxxxxxxxxxxx/xxxxxx=="). Firefox shows this door hanger every time I switch from the "MY INFO" section to another section.
I've attached the Browser Console log (as per the Password Manager/Debugging wiki's instructions. The log includes all the steps from my STR above: a successful login and then a switch away from the "MY INFO" section.
This door hanger seems like new problem because I use this website every week and first noticed this problem today. I tried bisecting for a Firefox regression using mozregression, but I could reproduce the door hanger at least as far back as Firefox 68 (July 2019). So I suspect this is a website content change, though I don't see any obvious visual differences compared to the website last week.