Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

one website not allowed login

  • 1 reply
  • 1 has this problem
  • 5 views
  • Last reply by cor-el

more options

https://www.prosperitybankusa.com/Banking-Services

Chrome and Microsoft Edge work okay. Firefox has been working at this site for a long time. Called bank and they use Chrome and suggested I try it. They think it is Mozillas problem. I don't know how to revert to previous version of Firefox.

https://www.prosperitybankusa.com/Banking-Services Chrome and Microsoft Edge work okay. Firefox has been working at this site for a long time. Called bank and they use Chrome and suggested I try it. They think it is Mozillas problem. I don't know how to revert to previous version of Firefox.
Attached screenshots

All Replies (1)

more options

There is a change in Firefox 96 related to cookies and insecure sites.

See also:

As a workaround for now you can modify this pref on the about:config page to revert this change.

  • about:config => network.cookie.sameSite.laxByDefault = false

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.