Firefox Support Forum

I got this message yesterday. I got this message on one of my other PCs quite a while back, and it was a date/time issue, but on this pc that is not the case my date and time are correct. Any help would be very appreciated.

This Connection is Untrusted

You have asked Firefox to connect securely to www.google.com, but we can't confirm that your connection is secure.

Normally, when you try to connect securely, sites will present trusted identification to prove that you are going to the right place. However, this site's identity can't be verified. What Should I Do?

If you usually connect to this site without problems, this error could mean that someone is trying to impersonate the site, and you shouldn't continue.

Technical Details

www.google.com uses an invalid security certificate. The certificate is not trusted because no issuer chain was provided. (Error code: sec_error_unknown_issuer)

Error: >>Secure Connection Failed

An error occurred during a connection to crew.lirr.org. Cannot communicate securely with peer: no common encryption algorithm(s). (Error code: ssl_error_no_cypher_overlap)

   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.<<

I have tried to add an exception via about:config.....it is not available. This is a site that I visit daily and must use chrome.

How do i make a permanent exception? Firefox 37.0.1

Thgank you

using FireFox 27.0 I want to delete an exception for an utrusted website. There is no Tools / Option / Security in this version. Preferences / Security does not have the list either.

Yesterday I installed FF 43.0 - 64bit. I did as clean install as I could, uninstalled old version, and deleted from HDD every "mozilla" and "firefox" directory I could find. Since then, I am unable to access next sites (I believe list is not complete): https://www.google.com/ https://www.facebook.com/ https://www.google.com/maps https://www.google.rs/?gws_rd=ssl

Error msg is alwaays the same: "You have asked Firefox to connect securely to www.google.com, but we can't confirm that your connection is secure. Normally, when you try to connect securely, sites will present trusted identification to prove that you are going to the right place. However, this site's identity can't be verified. What Should I Do? If you usually connect to this site without problems, this error could mean that someone is trying to impersonate the site, and you shouldn't continue. This site uses HTTP Strict Transport Security (HSTS) to specify that Firefox only connect to it securely. As a result, it is not possible to add an exception for this certificate. Technical details: www.google.com uses an invalid security certificate. The certificate is not trusted because the issuer certificate is unknown. The server might not be sending the appropriate intermediate certificates. An additional root certificate may need to be imported. (Error code: sec_error_unknown_issuer)"

Sites that I can normaly access with this FF are: https://support.mozilla.org/en-US/ https://translate.google.com/ https://mail.google.com/

All other browsers can access all sites without problems.

I cannot access a clients site that I'm working on due to an HSTS error, I used to be able to bypass this with test.currentTimeOffsetSeconds, however it seems to not work anymore.

I use Firefox for development because it has better tools than any browser I've use in the past, however this is a real blocker for me, since the sites I'm working on don't have DNS names yet and can't get updated certificates till then.

I've also manually added an exception in the certificate options, though that also didn't work.

Please guys, I've always been pushing people to use Firefox, though if it starts limiting my options without any way to bypass it if I feel I need to do something, then I'll be forced to go hunting for a browser that gives me more freedom, not to mention this is costing me work hours.

I want to permanently disable Mixed content Blocking on certain websites. When I click "Disable protection on this page", Firefox seems to remember the choice till the end of the session. After restart I have to disable it again. Is there a way to remember these settings permanently, without turning the entire feature off?

I had to restore my operating system. I was able to recover places.sqlite to restore bookmarks (good!). I was able to find a key3.db (dated July 2013) that file won't be complete or up to date, but at least it puts me somewhere ahead.

I read that I need a signon3.txt file to go with the key3. I don't have one. I did find a signons.sqlite file dated Sept 2014. I moved both these files to my profiles folder but I don't get my old passwords back.

Is it possible for me to use the old key3? Do the key3 and signons have to be dated the same? Is there a way to recreate the signons.txt?

I do have the master password.

Thanks for help.

Is the latest Java 7 update 17 safe to enable now? I noticed after updating, it was still disabled, but no longer blocked in red by Firefox. My assumption is that it's safe, since not "in the red" currently. However, I'd like to be sure before I re-enable it. Thanks!

Currently loving Firefox 19.0 on WinXP SP3

When ever I open a new tab in Firefox, this address populates the address bar: chrome://quick_start/content/index.html. Now, I don't have anything against it, but I can't seem to get rid of it. I have been to my settings and add ons and that doesn't work. Tried to see if I could find it somewhere in my internet settings on my computer control panel. I just had somebody delete some serious virus and adware issues with my computer, and I'm sure they put this in there. How do I get it to stop? If I call the place who fixed it, they'll probably charge me for fixing it when it should be an easy fix.

The page does NOT LOAD, it just populates the address bar, and if I hit enter, then it loads...help please.

Thank you so much.

I installed windows 10 today. No when I go to websites such as amazon on google I get an error.

'An error occurred during a connection to www.google.co.uk. Peer's certificate has an invalid signature. (Error code: sec_error_bad_signature). The page you are trying to view cannot be shown because the authenticity of the received data could not be verified. Please contact the web site owners to inform them of this problem.'  

So annoying, all was ok until today. Bloody Microsoft! I have re-installed Firefox but that does not cure the problem. Am temporarily using Chrome which does not have the bug, I can buy things from amazon and search in google and use my gmail and youtube accounts. Can anyone help me please? Many thanks.

This problem is not the fault of Firefox, everything works great in vanilla Firefox (Iceweasel). My main browser is the 'Light' fork of Firefox, but the question should relevant to vanilla Firefox as well. The trouble seems to be that the project has stripped the "Add Exception" page of one of it's dependencies out of the browser.

My question is: Is there a way to add certificate exceptions to firefox without using the warning page? It would seem that being able to do so manually would be extremely advantageous for bulk setups and amnesiac machines. The only real in-browser configuration in Light is about:config and I didn't see anything obvious there, but I'm no expert. Is there a config file somewhere that houses this? Can I somehow import exceptions from Iceweasel?

This problem is affecting a page that I have to visit dozens of times a day at work and so I appreciate any help I can get. As it stands, I have to copy and paste the link and manually s/https/http/ which is quite annoying, but is still not nearly enough to make Iceweasel preferable, sadly.

Got hijacked by http://www.hao123.com/?tn=29065018_59_hao_pg. Cant be resolved by resetting firefox or reinstalling it. Please help. :(

I have a mac and I really don’t want to buy a new one. Its a Mac OS X version 10.7.5 How do I upgrade it for free to Mac 10.11 so its stays safe.

As we are talking about safety her.

How good is the IPhone to use while doing Internet banking. I am using safari then- but would Firefox be safer. Is it safe to use Firefox now to check Internet banking?

And why is there no spelling check on Firefox most of the time!!!!

I want to add manually a web-site and my login data to the pass-word manager list. I cannot use the recommended method because the web-site is trying to protect access to my account, a protection I do not need from my home-computer. Using Internet Explorer Version 11, I have been able to store my login data for that site, but I cannot with Firefox. How do I overcome this restriction with Firefox?

For a few of the enterprise products I use, the mixed content blocker disables my ability to use these tools. While I understand I can toggle to allow mixed-content -- I would like to be able to whitelist the URLs that I use regularly that I don't want content blocking enabled. Is this possible?

It looks like my firefox browser is using an old facebook security certificate dated 2-28-14. How do I get to my certificate manager in my firefox browser so I can see if there's an updated security certificate (4-18-14 or after) and get that in place? Be specific with steps for me to follow please.

Hi there! I'm using MSN 8.1 on a newish HP Pavilion 21. Youtube recently started telling me that it cannot display until I turn off the Safety Mode. It seemed to work fine in the past. Not sure what is going on. Thanks, Lp.

Hi,

how to completly remove/disable web push notifications in Firefox?

about:config > dom.push.enabled > false

Not help with notif sent from "cdn . sendpulse . com"

demo here "thebadbuzz . com" (see attached screenshot).

The only alternative i have find is to block "sendpulse" using Adblock Plus.

Thank you.

There is nothing that actually need to be trusted. There is no secrets to hide with a crypto. Just need to get this site for reading a forum and watch photos: https://fotokala.ee/

Why Firefox is so shitty, that I can't make an exemption?