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

Yahoo Bizmail

  • 4 replies
  • 1 has this problem
  • 1 view
  • Last reply by cor-el

more options

past week or so, everytime using firefox to log onto Yahoo Bizmail, get a screen saying Bizmail needs updated Browsers to login with. Lists; Microsoft Edge, Google and Firefox or go with BASIC bizmail. Have down loaded Firefox multiple time over many days, can sometime get the bizmail to work properly, but, if using microsoft edge, it comes up ok, BUT, full of damn Ad's, distracting. what is wrong? Have the lastest Firefox updates loaded and can only get basic mail..

past week or so, everytime using firefox to log onto Yahoo Bizmail, get a screen saying Bizmail needs updated Browsers to login with. Lists; Microsoft Edge, Google and Firefox or go with BASIC bizmail. Have down loaded Firefox multiple time over many days, can sometime get the bizmail to work properly, but, if using microsoft edge, it comes up ok, BUT, full of damn Ad's, distracting. what is wrong? Have the lastest Firefox updates loaded and can only get basic mail..

Chosen solution

Do you use any proxy or security software to filter your browsing? If the

pKRlO9KG-52

is not stored in Firefox's settings (see article Fred linked for how to check that) and is not getting added by an add-on, then it might be an external "man in the middle."

Read this answer in context 👍 0

All Replies (4)

more options

Websites say that Firefox is outdated or incompatible even though it's the latest version

https://support.mozilla.org/en-US/kb/how-reset-default-user-agent-firefox

You can check out at the browserspy website how websites see you:

http://browserspy.dk/browser.php

http://browserspy.dk/headers.php

more options

Note: Your User Agent shows: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:92.0) Gecko/20100101 Firefox/92.0/pKRlO9KG-52

Note the junk at the end.


https://support.mozilla.org/en-US/kb/how-reset-default-user-agent-firefox

http://www.howtogeek.com/113439/how-to-change-your-browsers-user-agent-without-installing-any-extensions/


Do you have enabled "Resist Fingerprinting" if you check ‘’’Resist Fingerprinting’’’ on the ‘’’about:config’’’ page as this affects the user agent?

more options

Chosen Solution

Do you use any proxy or security software to filter your browsing? If the

pKRlO9KG-52

is not stored in Firefox's settings (see article Fred linked for how to check that) and is not getting added by an add-on, then it might be an external "man in the middle."

more options

What security software do you have?

This could be a problem with Avast Anti-Track, so if you use this software then try to disable it.