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How do I clear something running on Firefox which is compromising security by asking for all passwords on bank sites etc.

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  • Last reply by cor-el

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I believe I've got some kind of spy ware or malware running in Firefox If I log into my Sainsburys Bank site and enter my user name and password I should be directed to a new page asking for one of 4 possible passwords before I can access my account. However after a slow connection I am asked to give ALL 4 of the passwords so something is not right as confirmed by Sainsburys. Last night I un installed Firefox then re installed and it worked okay but this morning the same problem has occured. Can you please advise a solution . Yours EJH

I believe I've got some kind of spy ware or malware running in Firefox If I log into my Sainsburys Bank site and enter my user name and password I should be directed to a new page asking for one of 4 possible passwords before I can access my account. However after a slow connection I am asked to give ALL 4 of the passwords so something is not right as confirmed by Sainsburys. Last night I un installed Firefox then re installed and it worked okay but this morning the same problem has occured. Can you please advise a solution . Yours EJH

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Do you have a secure connection to your bank site?
If that is the case then check the certificates to make sure that you are connected to your bank site.
If you do not have a secure connection with your bank site then try to change the protocol from http: to https: in the location bar while visiting the home page of your bank and verify again by clicking the website favicon.

See How do I tell if my connection to a website is secure?

If it is a phishing attempt then you should contact your bank site and inform them about that.


Do a malware check with some malware scan programs.
You need to scan with all programs because each program detects different malware.
Make sure that you update each program to get the latest version of the database before doing a scan.

See also "Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked and What to do when searches take you to the wrong search website