The error message is big on not saying what the problem is.

Make sure you are not blocking content.

https://support.mozilla.org/en-US/kb/enhanced-tracking-protection-firefox-desktop also see https://blog.mozilla.org/security/2021/03/23/introducing-smartblock/

https://support.mozilla.org/en-US/kb/smartblock-enhanced-tracking-protection

Diagnose Firefox issues using Troubleshoot(Safe) Mode {web link}

A small dialog should appear. Click Start In Troubleshoot(Safe) Mode (not Refresh). Is the problem still there?

Many site issues can be caused by corrupt cookies or cache.

Warning ! ! This will log you out of sites you're logged in to. You may also lose any settings for that website.

• Delete cookies to remove the information websites have stored on your computer {web link}

• How to clear the Firefox cache {web link}

I have the same problem, have used GoDaddy for over a decade, have accessed it a lot over the last few months and then suddenly got that annoying message and am unable to login.

Upon logging in to GoDaddy from a computer that doesn't use Firefox, at the top of the website, it says "We built our website for newer browsers. Update now for the best experience," and three browser links/icons are there for downloading Chrome, Edge and Firefox. Er, I *am* using Firefox and now can't get onto GoDaddy.

Vosvuur Sometimes you can get that error because the Firefox user agent was altered. If the below does not help, please post a new question.

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?

• privacy.resistFingerprinting = false
• https://support.mozilla.org/en-US/kb/firefox-protection-against-fingerprinting

’’’Avast AntiTrack’’’ is also known to cause this issue.

Vosvuur Sometimes you can get that error because the Firefox user agent was altered. If the below does not help, please post a new question. 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?

• privacy.resistFingerprinting = false
• https://support.mozilla.org/en-US/kb/firefox-protection-against-fingerprinting

’’’Avast AntiTrack’’’ is also known to cause this issue.

Thank you. User agent looks okay. Where can I find/access the "about:config" page to check fingerprinting? And where would one find "Avast AntiTrack"? I doubt it's on the computer but would like to check.

Should I try (temporarily) disabling ad blockers (where can that be done?) per the GoDaddy message?

It is possible that javascript has been disabled. If you think it might solve the problem to turn it on again, where can that be done?

Appreciate your help!

Please go to the top of any support.mozilla.org web page and use the Get Community Support link: https://support.mozilla.org/en-US/questions/new

Select the product for what the problem is (Firefox or whatever). Now select the category for the problem. At the bottom is Other.

Describe the problem in brief (one line). Then press <enter>. The website will display any prior posts that might help you. If nothing on the list can help, at the bottom press the button; ’’'None Of These Solve My Problem.

Now enter all the relative information on the problem. At the bottom of this, you can Add Images.

Under this is Troubleshooting Information. Please press the Share Data button. This will let us look at your system details. No Personal Information Is Collected.