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Why am I getting...error="unsupported_response_type", error_description="Unsupported response types: [none]" ?

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  • Last reply by McCoy

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Trying to log into Xfinity and get this error message. What do I do to resolve? In addition many websites loading slowly or not at all. This is a recent problem and wondering if the update is an issue. Is this a software problem? Thx.

Trying to log into Xfinity and get this error message. What do I do to resolve? In addition many websites loading slowly or not at all. This is a recent problem and wondering if the update is an issue. Is this a software problem? Thx.

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Hello vvlbh,

Would you try this please :

Clear the Firefox cache :
https://support.mozilla.org/en-US/kb/how-clear-firefox-cache

"Remove the cookies" from websites that cause problems :
https://support.mozilla.org/en-US/kb/delete-cookies-remove-info-websites-stored (scroll down to : "Delete cookies for a single site")


If you use extensions like Adblock Plus, NoScript, Flash Block, Ghostery, then always make sure such extensions do not block (wanted) content.

You could also check your settings here :

https://support.mozilla.org/en-US/kb/content-blocking


If none of the above do the trick, then let's Try Firefox in Safe Mode :

If Firefox is not running : Hold down the Shift key when starting Firefox.

If Firefox is running : 3-bar menu => ' ? ' (at the bottom of the dropdown) => 'Restart with Add-ons disabled'. Then OK the restart. A small dialog should appear. Click 'Start in Safe Mode' ( not 'Refresh' !)

See : https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode