This thread, in about the 3rd original comment down, says to delete the cert.db files while the browser is closed. I can’t find those. Anyone know where these are?
I already uninstalled FF and deleted everything labeled FF, then reinstalled. Then I deleted the default profile and created another one. Nothing has worked. ALL webpages are insecure and will not be connected to.
Double check the system clock.
It matches my Verizon-controlled phone to under a minute.
Check this thread
I read over that thread, and I ran certutil.exe in the command window, and it said it ran the dump command. Then I deleted the profile folder in the FF, and of course when I booted FF again, it remade the folder, but it still doesn’t connect to anything. When I finally found the View Certificates inside the options of FF, there were none to view, and that was before I started deleting things.
How can these settings survive not only an install, but my deleting everything I can find with that name, including folders?
No, check this thread.
Does the error message resemble this:
If so I’m afraid you’ve been malwared, guy. I wound up taking my machine into a computer repair place. He got me cleaned up and back in tune within a couple of hours, for about $50.
is the DATE correct? This often happens when your internal battery dies and you lose the time AND date. resetting the time alone won’t fix it.
The date is also correct. I will have to run a malware scan from something to see if that fixes it, I guess.
You may want to reboot your router out of an abundance of caution.
You probably either have malware or else an antivirus program that’s trying to scan your HTTPS traffic (Avast is terrible with that) but doing so by injecting its own broken certificate into Firefox’s stores.
The clock has the right date, and the right time, about 1 second off what shows in the browser window for the UN Naval Observatory time. I ran Spybot, online Eset, online F-Secure, Malwarebytes, and Trend Micro. Firefox still says all sites are insecure.
Ideas?
Do you have an antivirus program running on your computer (not online)? Try disabling it altogether (especially anything having to do with web traffic scanning or HTTPS scanning), or uninstalling it altogether and just using the standard Windows Defender.
Does this problem happen with Chrome or IE/Edge as well? What about Firefox Safe Mode? 3 Ways to Start Firefox in Safe Mode - wikiHow
This does not happen in Chrome or Edge, but in case it matters, my computer hates Craigslist and loads it like it’s on dialup. This happens in all 3 major browsers. Well, currently I get nothing of course in Firefox. The only AV running is Windows Defender.
I just started FF in safe mode, and nothing changed.
Is this happening on your personal PC on your home network, or is either the PC or network supplied by a third party like your employer? If the latter, your traffic might be going through a security device that decrypts the TLS to inspect it. That is, a Man in the Middle attack. If so, and your PC doesn’t trust the certificates from the security device, that would probably cause a TLS error on every site.
Chrome started noting all HTTP sites as unsecured. It wants HTTPS.
This is on a home network, with an Apple router. I have another one, which has been made into a VPN only router with a firmware change, but it was acting up, and the traffic rate was rising and falling per half minute, roughly. If you have an idea on that, I’d love to hear it. This town seems to be too small to have someone who really understands these. I already had my brilliant former student, now a CompSci major, install the firmware. But it was so annoying we went back to the Apple router.
Have you installed or updated any security software lately? We’ve had some problems with Malwarebytes, it’s been overly aggressive and marking good things as bad. But it could be anything, I would try disabling all security software temporarily and then load a safe page like http://google.com in Firefox and see what happens.
This all started before I got Malwarebytes. I just disabled all the protections I could find in Defender, ran ADWcleaner, rebooted, quit Malwarebytes, refreshed FF, started it in safe mode, quit my VPN, and nothing changed.
Googling “firefox all websites not secure” returns a ton of results from Mozilla.org. I say this not to dismiss your question with LMGTFY, but to suggest that you are far from alone. Check out some of those threads to see if any of those people got their problem solved.
If you cleanly install Firefox on a “guest” Windows profile (or just as a new, temporary user), does it have the same issue? Or if you use Firefox on another computer/phone on the same wifi network, do you still have that problem?
PS: I don’t really think this is the problem, but it’s a worth a shot and is harmless. Takes a second to revert back if it doesn’t help: http://www.kahunaburger.com/2009/03/18/clear-dns-cache-in-firefox/