Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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

'access denied' or 'unrecoverable error' on frequently-visited sites started today (12/7/22)

  • 1 cavab
  • 0 have this problem
  • 1 view
  • Last reply by cor-el

more options

Starting this morning, I get 'access denied' or 'unrecoverable error' on many sites. These are sites I frequently visit: retail, air travel, etc. Edge doesn't have this problem but I prefer not to use edge if I can help it. My Firefox is uptodate. So is my Windows 10.

Starting this morning, I get 'access denied' or 'unrecoverable error' on many sites. These are sites I frequently visit: retail, air travel, etc. Edge doesn't have this problem but I prefer not to use edge if I can help it. My Firefox is uptodate. So is my Windows 10.

All Replies (1)

more options

"You don't have permission to access..." errors are characteristic of a firewall that protects the server against misuse and this firewall thinks something is suspicious about the HTTP request. If you use a proxy or VPN then try to use a direct connection. Select "No Proxy" if "Use the system proxy settings" or one of the others do not work properly.

  • Settings -> General -> Network: Connection -> Settings

You can try to clear the Cache and remove the Cookies for websites that cause problems via the padlock button or via "3-bar" Firefox menu button (Options/Preferences) to see if that fixes it.

I've also seen cases where having "Resist Fingerprinting" enabled was causing this issue.

If this all doesn't work then you can try "Forget About This Site" in the right-click context menu of an history item.