Hey Gonecampen,

    Sure, I will try to provide the maximum of suggestions as possible... 
    The first basic step I'll recommend you to do is restart and reboot your computer (so all the RAM 
    memory and hard disk storage will be stored appropriatly, and browser can interact with the computer).
    If this step doesn't work, try testing this in a new profile on Firefox and see if it loads the website
    correctly. This problem might occur even when certain third-party cookies are blocked, that might cause
    an error while loading the page (To solve this go to: Settings > Privacy and Security and select custom
    cookies)...
 
    Please reach out to me if you need more suggestions...

Sincerely, Tharakram

I am having a similar issue. The error message URL from: https://sa.www4.irs.gov/sso/ial1?resumePath=%2Fas%2Flyc0D6b0JM%2Fresume%2Fas%2Fauthorization.ping&allowInteraction=true&reauth=false&connectionId=SADIPACLIENT&vnd_pi_requested_resource=https%3A%2F%2Fsa.www4.irs.gov%2Fsso%2Fprotected%2Flogout&vnd_pi_application_name=SADILogout Reference ID:

I have cleared the cache and history of all URL to the IRS. I have removed all of the old cookies, rebooted Firefox (and the computer) and still no luck. I was able to successfully get to the IRS site using MS Edge.

Note that the security settings for Firefox are running afoul of several sites owing to supposed out of date certificates and there is no way that the site security feature can be bypassed.

I have the same problem as shown in the images for the original post.

PROBLEM: I have not been able to logon to IRS.gov or SSA.gov since late 2024 (or before).

SOLUTION / WORKAROUND: I am now using the Google Chrome browser to successful logon to IRS.gov and SSA.gov using my ID.me logon.

NO PROBLEM REPORT TO FIREFOX SUPPORT: A search for "IRS.gov" brings up only this post. Not sure if this means it's only my problem or not. It took me many months to realize it could be a Firefox problem (because the IRS.gov web page error makes it look like the problem is with the IRS web page), and then find that Chrome works OK.

NOTE For IRS.gov on Chrome, the web page works correctly. Which web page is it? On Chrome (which works OK), the IRS.gov page shows a list of options for logon (logon with ID.me or create an ID.me account). I click on ID.me to logon, and everything goes smoothly logging to IRS.gov using Chrome. https://www.irs.gov/your-account, then click on the button for Individual, or Business, etc.

Estimated Tax time and still the same problem. This is not a site issue, it is a Firefox issue. It appears to only be the login page since I can get to the payment page without a login. Not sure what is going on. Regrettably it seems that Firefox is becoming defunct.