All secure websites ask for login twice
I have banking, paypal, google, yahoo, Amazon, Netflix all say the first time I login that the user name or password is wrong and when I enter the same user name and same password the second time it logs on. Sounds like a key logger. Win 7 64, most current Firefox, fairly new win 7 install, new computer, New router Netgear 6300, Vipre Internet Security. This all just started on Wednesday.
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This issue can be caused by corrupted cookies or cookies that are blocked.
- check the permissions on the about:permissions page and in "Tools > Page Info > Permissions"
- https://support.mozilla.org/kb/fix-login-issues-on-websites-require-passwords
Clear the cache and remove cookies only from websites that cause problems.
"Clear the Cache":
- Firefox/Tools > Options > Advanced > Network > Cached Web Content: "Clear Now"
"Remove Cookies" from sites causing problems:
- Firefox/Tools > Options > Privacy > "Use custom settings for history" > Cookies: "Show Cookies"
A client-side keylogger isn't going to make you type everything twice. But a DNS hijacker might. Have you already changed those passwords?
Please check your connection setting here:
"3-bar" menu button (or Tools menu) > Options > Advanced > Network mini-tab > "Settings" button
The default of "Use system proxy settings" will piggyback on your Windows/IE "LAN" settings. You could try "No proxy" to see whether that makes any difference.
Your system-level DNS servers can be discovered using a command prompt.
Start menu > search box, type cmd.exe and press Enter
At the prompt, type nslookup mozilla.org and press Enter
Windows should report your current DNS server by name and address, as well the info for mozilla.org. For example:
Server: cdns01.comcast.net Address: 75.75.75.75
Non-authoritative answer: Name: mozilla.org Addresses: 2620:101:8008:5::2:1 63.245.215.20
If the server is not the one you normally associate with your internet service provider, or one you set up manually (e.g., for OpenDNS or Google Public DNS), then that would be suspicious. Note that DNS can be set in Windows and/or in your router.