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Some Pages Generating PR_END_OF_FILE_ERROR

  • 2 replies
  • 1 has this problem
  • 8 views
  • Last reply by mkel2010

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Firefox, specifically the Windows version, has started generating PR_END_OF_FILE_ERROR errors on https:// web sites. What I find interesting is that Firefox says the page is not secure in the address bar - even though the page is secure. Firefox on Mac and IOS do not have this issue. I'm also running Bitdefender Anti-virus with Encrypted Web scan. With that feature turned off, blocked pages seem to work. I found yesterday that logging out of Sync while Encrypted Web scan is on allowed the blocked pages to load.

I deleted Firefox and re-installed it, thinking I'd fixed the problem. No such luck. I've tried all the other fixes I can find but none of them work. This is clearly a Firefox issue and not an issue with Bit Defender since it only occurs (and has been widely reported for years) with Firefox for Windows.

On a side note, even support.mozilla.org gets blocked.

Anyone have a real fix that will work?

Firefox, specifically the Windows version, has started generating PR_END_OF_FILE_ERROR errors on https:// web sites. What I find interesting is that Firefox says the page is not secure in the address bar - even though the page is secure. Firefox on Mac and IOS do not have this issue. I'm also running Bitdefender Anti-virus with Encrypted Web scan. With that feature turned off, blocked pages seem to work. I found yesterday that logging out of Sync while Encrypted Web scan is on allowed the blocked pages to load. I deleted Firefox and re-installed it, thinking I'd fixed the problem. No such luck. I've tried all the other fixes I can find but none of them work. This is clearly a Firefox issue and not an issue with Bit Defender since it only occurs (and has been widely reported for years) with Firefox for Windows. On a side note, even support.mozilla.org gets blocked. Anyone have a real fix that will work?

All Replies (2)

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You can check the connection settings and check for possible issues with a Proxy or VPN service.

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

If you do not need to use a Proxy to connect to internet, select "No Proxy" if "Use the system proxy settings" or one of the others do not work properly.

See also:

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No proxy is set up on my system. I've tried all the other options.