Help Please. Firefox only works on secure sites. I can't figure out why.
Can someone help? I'm close to abandoning Firefox, which I don't really want to do.
1. When I open Firefox, I get the following error on the landing page (google.com):
Secure Connection Failed
An error occurred during a connection to www.google.com. PR_END_OF_FILE_ERROR
The page you are trying to view cannot be shown because the authenticity of the received data could not be verified. Please contact the website owners to inform them of this problem.
2. When I navigate to a non-secure website, either by typing in the URL or using a bookmark, I get the following error:
The connection was reset
The connection to the server was reset while the page was loading.
The site could be temporarily unavailable or too busy. Try again in a few moments.
3. When I navigate to a secure website, it works and I can log in to log in screens for financial accounts, etc.
4. I'm running Windows 10 on a PC and Firefox version 97.0.1. My Firefox on my Android works fine.
5. My only extensions are Adblock plus, Cisco Web Extension for Webex meetings, Javascript toggler, and Video Download helper. I have no Themes downloaded, and my only plug-ins are one added automatically by Mozilla (OpenH264 Video) and one added by Google (Widevine content decryption).
6. I've checked all of the proxy settings, all of the https only settings, and I've disabled each and all combinations of the extensions including reboots of the computer after each trial change - but nothing works.
Anybody have any ideas? Anybody experiencing this? It's been happening since about the last three Firefox updates. I keep waiting for an update to fix this, but it isn't happening.
Help, please?
Chosen solution
You can try to disable DNS over HTTPS.
- https://support.mozilla.org/en-US/kb/firefox-dns-over-https
- https://support.mozilla.org/en-US/kb/dns-over-https-doh-faqs
See also:
Read this answer in context 👍 1All Replies (4)
I had this same problem and found a different solution that all the others I read here.
I went to Apps in setting and clicked on "Force Stop", then, to overdo it, I uninstalled the two VPNs I had installed, ProtonVPN and AdGuard (built into the app).
The idea is that Firefox is NOT finding the correct SSL certificates. What's blocking them? Even using http:\\Google.com wasn't working. Why? because it's not secure - not https.
Then I reinstalled AdGuard, but did NOT select "Secure https://" filtering. It worked. Next, I did the same with ProtonVPN. I Forced stop AdGuard and started ProtonVPN. Again, it worked. I suspect the https conflict was in the choice I made in AdGuard.
Finally, just to be stupid paranoid, I once again started BOTH and they worked. Tracking backward I verified that toggling "htpps filtering" on and off in AdGuard was the culprit.
I'm not a coder, but thinking outside the box seemed to help.
aaron4738 said
1. When I open Firefox, I get the following error on the landing page (google.com):Secure Connection Failed An error occurred during a connection to www.google.com. PR_END_OF_FILE_ERROR The page you are trying to view cannot be shown because the authenticity of the received data could not be verified. Please contact the website owners to inform them of this problem.
Is this only at startup, or every time you either (A) open a new window (Ctrl+N) or (B) go to the home page (click the Home button or press the Alt+Home keyboard shortcut)?
2. When I navigate to a non-secure website, either by typing in the URL or using a bookmark, I get the following error: The connection was reset The connection to the server was reset while the page was loading. The site could be temporarily unavailable or too busy. Try again in a few moments.
Hmm, that's strange. You have "No proxy" in the connection settings?
Do you use any external filter on your browsing, such a security software or parental control software?
3. When I navigate to a secure website, it works and I can log in to log in screens for financial accounts, etc.
Okay, good. I wonder why that is different?
Chosen Solution
You can try to disable DNS over HTTPS.
- https://support.mozilla.org/en-US/kb/firefox-dns-over-https
- https://support.mozilla.org/en-US/kb/dns-over-https-doh-faqs
See also:
@DOC I had tried disabling all the add ons and nothing worked. @jsher2000 it occurred always no matter how I tried to access. I have a firewall and virus monitoring through Vipre, but it doesn't seem to be interfering with anything. No parental control or other such functions.
@cor-el well I'll be darned. That worked. I wonder why that feature doesn't work for me. Seems like a good idea, but I guess I'll have to live without that extra privacy insurance. Maybe I'll change to Duck Duck Go for searches.