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Firefox Dev can’t establish a connection to local server

I'm a web developer that setup a local environment under Linux Mint. For some reason, Firefox Developer Edition (59.0b7 64-bit) cannot access sites on my localhost. The i… (funda kabanzi)

I'm a web developer that setup a local environment under Linux Mint.

For some reason, Firefox Developer Edition (59.0b7 64-bit) cannot access sites on my localhost. The interesting thing is that Firefox Quantum 58.0.1 (64-bit) is showing these local sites perfectly fine. I've tested other browsers, including Konqueror and Lynx, and these work fine also.

I've setup my environment so that apache2 can serve pages from a 'wildcard' virtual host. Using symlinks, I can link my project files to another directory that functions as the web root. Thus:

/home/me/business/projects/client/index.html => /home/me/business/www/client/index.html

Navigating to http://client.dev brings up the page perfectly in Firefox 58, Konqueror, and Lynx.

However, Firefox Developer Edition, AND Google Chrome, both fail to load the page. The URL changes from http://client.dev to https://client.dev and throws this message:

"Unable to connect

Firefox can’t establish a connection to the server at client.dev."

I've played around with the about:config settings for Network.dns.* but nothing seems to help. Also, the apache logs do not produce anything useful.

Your input will be greatly appreciated.

Asked by Alan W 2 iminyaka edlule

Answered by Alan W 2 iminyaka edlule

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How do I bypass "Error code: SSL_ERROR_WEAK_SERVER_EPHEMERAL_DH_KEY" on trusted site?

I have a local Linux server in my office we use for our point of sale system. I almost never need to log in to it, as we have an outside support company that handles most… (funda kabanzi)

I have a local Linux server in my office we use for our point of sale system. I almost never need to log in to it, as we have an outside support company that handles most of it. In this instance they want me to login and look at something, so they sent me an email telling me to login using a particular https internal address (https://192.168.1.1:1311 for example). I know nothing at all about Linux except how to spell it, so they have me use Dell Open Manage so it has a more "windows type" interface. However, I can't log in because of the security error I listed above. Screenshot attached. I cannot find a way to force FF to ignore it or bypass it or whatever. Any suggestions?

Asked by krcinknox 2 iminyaka edlule

Answered by TyDraniu 2 iminyaka edlule

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Says "Insecure connection" for nearly everything I want to load

I am trying to load YouTube, Wikipedia, and some other websites but I ended up with "Insecure connection". None of these are bookmarked pages, so https://support.mozilla.… (funda kabanzi)

I am trying to load YouTube, Wikipedia, and some other websites but I ended up with "Insecure connection". None of these are bookmarked pages, so https://support.mozilla.org/en-US/questions/1181480 does not help, as it is about search engines. Note that the websites I tried to visit are all HTTPS websites, but HTTP websites work.

Asked by RedSilverfish 2 iminyaka edlule

Answered by FredMcD 2 iminyaka edlule

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Access Denied; you don't have permission

I am running Firefox 55.0.3 on an iMac El Capitan. I keep getting Access Denied; you don't have permission to access (URL) on this server, for a few sites only (sites I'… (funda kabanzi)

I am running Firefox 55.0.3 on an iMac El Capitan. I keep getting Access Denied; you don't have permission to access (URL) on this server, for a few sites only (sites I've accessed in the past). I've cleared cookies, cache, and history, I've refreshed Firefox, I've disabled all add-ons/plug-ins/extensions. I've also tried the sites with other browsers (so, yes, I know it's not just Firefox, but I was hoping maybe you could help anyway...) Thank you.

Asked by Sheribee 3 iminyaka edlule

Answered by Sheribee 3 iminyaka edlule

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Why can't I download anything?

I am having trouble with downloading anything in Firefox. I can't download files from the internet and can't install any add-ins. I always receive a "download failed" mes… (funda kabanzi)

I am having trouble with downloading anything in Firefox. I can't download files from the internet and can't install any add-ins. I always receive a "download failed" message. I have tried all the suggestions in the download issues page, configuring my firewall and reinstalling a clean version of Firefox and nothing works.

Can anyone help me?

Asked by dmilic 3 iminyaka edlule

Answered by Tonnes 3 iminyaka edlule

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Firefox couldnt load XPCOM DURING Installation WTF GIVES???

Seriously. This is downright stupid. I attempted to download Firefox for the first time on this laptop and got a "This file is corrupt" error before the downloading porti… (funda kabanzi)

Seriously. This is downright stupid. I attempted to download Firefox for the first time on this laptop and got a "This file is corrupt" error before the downloading portion was even done. I cancelled the download and retried and it went all the way though although it froze temporarily around the 66% mark and then finished. But after that I got "couldn't load XPCOM" so I did I completely uninstalled Firefox and then attempted to reinstall and again at the 66% mark at downloading I got "Couldn't load XPCOM"...the heck is going on with this oversized hunk of junk?

Asked by Acanex88 3 iminyaka edlule

Answered by Happy112 3 iminyaka edlule

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Firefox rejects google as a "your connection is not secure"?

Since upgrading to firefox 50.0.1 I cannot do a search with Google (or any other engine) search. I get "Your connection is not secure". Everything works with Chrome and… (funda kabanzi)

Since upgrading to firefox 50.0.1 I cannot do a search with Google (or any other engine) search. I get "Your connection is not secure". Everything works with Chrome and Safari. I have a MACBook Pro OSX 10.12.1 with no antivirus. Firefox is set up to ignore IVP6 and I have no proxy. I can't even run the "SSL Labs' test page" as suggested by the Mozilla help pages. What is going on? What is stopping searches. I can browse other pages without a problem. thanks for any help.

Asked by robsj 3 iminyaka edlule

Answered by jscher2000 3 iminyaka edlule

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After clicking on a prompt to refresh Firefox, I lost my add-ons and many websites give me "This Connection is Untrusted" and won't load correctly.

I foolishly responded to a prompt on my screen suggesting there was a problem with Firefox. I clicked Refresh Firefox and seemed to be on a genuine page. After that I had… (funda kabanzi)

I foolishly responded to a prompt on my screen suggesting there was a problem with Firefox. I clicked Refresh Firefox and seemed to be on a genuine page. After that I had lost my add-ons, like Ghostery. All attempts to access it failed as I either got an 'Untrusted Connection' message or simply a list of words from the website (in blue). Even the page for add-ons from the Firefox menu does not work. Then I discovered that other pages like Yahoo, gmail, and Wunderground gave the same problem. Firefox has become unusable. I uninstalled it and renewed it, to no avail.

Asked by digbythrust 4 iminyaka edlule

Answered by philipp 4 iminyaka edlule

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Firefox won't load ANY websites--even Google--because of an "Insecure Connection." And yes, I've deleted cert8.db and changed my avast settings.

Firefox couldn't even load it's own "Thanks for downloading us" pages. Same error. Advanced: www.google.com uses an invalid security certificate. The certificate is not t… (funda kabanzi)

Firefox couldn't even load it's own "Thanks for downloading us" pages. Same error.

Advanced: 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

Error Code details:

https://www.google.com/?gws_rd=ssl

Peer's Certificate issuer is not recognized.

HTTP Strict Transport Security: false HTTP Public Key Pinning: true

Certificate chain:


BEGIN CERTIFICATE-----

MIICzTCCAbWgAwIBAgIITVIiKka+yZEwDQYJKoZIhvcNAQELBQAwGzEZMBcGA1UE AwwQVmVydG9BbmFseXRpY3NDQTAeFw0xNjA4MTgwMDAwMDBaFw0yNjA4MTgwMDAw MDBaMBkxFzAVBgNVBAMMDnd3dy5nb29nbGUuY29tMIIBIjANBgkqhkiG9w0BAQEF AAOCAQ8AMIIBCgKCAQEAqwyobr3G1ss1/pTav7wMj4BNXRwn+zJjiHUXeo1j+qMA iuDcvu6UA2wex3rLTew7xiFrMGBL+pNqMrtO/YAyUTm9qRUNlhdcEV39HuKqs9YX hRAU2ZKcrg57xcZbDWJhHzFaTMM7ZI7co+gxu9oFimvk+dOpAmI612FwnxkwAgkX P8Y3Eul9fF5ppZ7Ms0lsJoIx5kOoGnciKre7lEsY7A8fJ45dZDeq7ysnnlpPXaG0 L3nczMdK27MfCB6bWfPKnp7YQTP/cq9JxNKmjmFOy4c+T3+0YCVXxyL0bnzOtuiq wfm5MxankCpHAPcMDiI9dw10XRAvSXW4QuWKdD5SLQIDAQABoxcwFTATBgNVHSUE DDAKBggrBgEFBQcDATANBgkqhkiG9w0BAQsFAAOCAQEAQSBjEUee2LQs1CCCge6K phabWO3jm8qxLm5QEDxwRpDere/0O0rIzjbJPxbXCdN9UNm7wi9K6eDH+9jbb1Uk KXc2HQcOkWpdUhFEA2eCUCDqS7G9K/TXauTrxSdJo1BNvUSZOMXAWcu0fPZhZo2/ TOQogpnGtIdluBtodMAx/PUzCjOP+L2UUTSvVXkarAkFADHBpAhxuehB8SaPMvJn HrA6oD20lykCVuKID6uNYCJwindEzQWAzY8LpGuK+mIPuNzmi7ZVvl5kvKLXroNm wdBtdiG/JSGIaNU7MW1HAWaCqPIY3PUt2b7I+Myc/QDrMdQpD0q8JA0mNfhB0uwJ uQ==


END CERTIFICATE-----

Asked by Shrilaraune 4 iminyaka edlule

Answered by Shrilaraune 4 iminyaka edlule

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I keep getting an internet connection failure. Can someone help me repair this. It won't let me view certain pages.

This is what I keep getting on various sites lately: Secure Connection Failed An error occurred during a connection to hcde.centurylink.com. Peer using unsupported vers… (funda kabanzi)

This is what I keep getting on various sites lately:

Secure Connection Failed

An error occurred during a connection to hcde.centurylink.com. Peer using unsupported version of security protocol. Error code: SSL_ERROR_UNSUPPORTED_VERSION

   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 W7; DSL with Century Link who tried to fix it but couldn't. I can't seem to find the answer. I tried typing in about:config but got the Secure Connection Failed message. Grrrr! Help!

Asked by JT 4 iminyaka edlule

Answered by cor-el 4 iminyaka edlule

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SSL_ERROR_INAPPROPRIATE_FALLBACK_ALERT on specific website

Hi there, I'm trying to troubleshoot an issue that seems to be specific to FireFox and a specific website. If you browse to www.denali.gov with FireFox, and then on the r… (funda kabanzi)

Hi there,

I'm trying to troubleshoot an issue that seems to be specific to FireFox and a specific website.

If you browse to www.denali.gov with FireFox, and then on the right side of the page click on "Denali Commission Project Database", FireFox will first pop up a message that says: "Your connection is not secure"

Here is a direct link to the page: https://www.denali.gov/dcpdb/index.cfm?nossl=true&fuseAction=Indicators.ShowProjectMapLink

Then if you click on Advanced and click the "(Not secure) Try loading www.denali.gov using outdated security" that page will fail to load with the following error message:

"An error occurred during a connection to www.denali.gov. The server rejected the handshake because the client downgraded to a lower TLS version than the server supports. Error code: SSL_ERROR_INAPPROPRIATE_FALLBACK_ALERT"

Before anyone says "have you tried searching our forums or Google?", I've been researching this issue for the past hour and have not been able to come up with a solution. I checked the TSL settings on the "about:config" page and changed the version.min settings, but that does not fix the problem.

I have not been able to come up with anything, and so I turn to you guys... :-)


Has anyone seen this issue before and has a fix? The error is easily reproducible: Browse to the page using FireFox and I'm sure you'll see the same error.

However, the page loads fine in other browsers. Except, I don't want to use other browsers; I want to use FireFox.

Asked by Aschoonbeek 4 iminyaka edlule

Answered by jscher2000 4 iminyaka edlule

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How to make firefox from blocking legit sites 2016

I've had no problems with this before, but today, Firefox began blocking legitimate sites such as google. ca It tells me my connection is not secure. Error code: SEC-_ER… (funda kabanzi)

I've had no problems with this before, but today, Firefox began blocking legitimate sites such as google. ca It tells me my connection is not secure. Error code: SEC-_ERROR_UNKNOWN_USER

My security settings have not been changed, so I don't know where to even start solving this problem.

I'm not a computer wiz, so would appreciate support that I can follow...

Thanks! JK

Asked by JKielven 4 iminyaka edlule

Answered by cor-el 4 iminyaka edlule

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How to unblock a website

duplicate of /questions/1108088 How to unblock a website that says that it is not an secure site although it was a few days ago before the update? … (funda kabanzi)

duplicate of /questions/1108088

How to unblock a website that says that it is not an secure site although it was a few days ago before the update?

Asked by GRNKNG 4 iminyaka edlule

Last reply by FredMcD 4 iminyaka edlule

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Can't Search in Firefox with Windows 10

I followed the instructions in "This Connection is Untrusted" error message appears - What to do and deleted cert8.db. I restarted Firefox but the problem persisted … (funda kabanzi)

I followed the instructions in "This Connection is Untrusted" error message appears - What to do and deleted cert8.db. I restarted Firefox but the problem persisted

Asked by h_g 4 iminyaka edlule

Answered by jscher2000 4 iminyaka edlule

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I keep getting Connection Timed Out

Recently I have been getting the Connection Timed Out on certain sites. I have cleared my cache and cookies, and it still happens. I tried it in safe mode and it still … (funda kabanzi)

Recently I have been getting the Connection Timed Out on certain sites. I have cleared my cache and cookies, and it still happens. I tried it in safe mode and it still happens. I am not sure what else to do besides just uninstalling and reinstalling firefox, and I don't know if that will even help.

Now, here is the real kicker. The warning doesn't always to it to the same sites, and it almost happens randomly. For the longest time it didn't happen, and now it seems to start up again.

So I really have no idea what to do. Can someone please help me. Also I am a bit of a novice when it comes to computer speak, so if you have a question that may be a bit overwhelming, could you dumb it down a bit for me.

Asked by mrpie 4 iminyaka edlule

Answered by mrpie 4 iminyaka edlule

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Firefox won't load with a certain wifi

So i have this problem, Firefox won't load when i connect with one wifi but when i change my connection to different wifi it'll work again. even though the first wifi wo… (funda kabanzi)

So i have this problem, Firefox won't load when i connect with one wifi but when i change my connection to different wifi it'll work again. even though the first wifi works just fine on my computer seeing as i can connect to internet with a different browser.

Asked by iamalwaysrunning 4 iminyaka edlule

Answered by FredMcD 4 iminyaka edlule

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Yahoo mail gives untrusted connection error

When I log into Yahoo mail on Firefox 40.0.3 (on Windows 7) on my company-supplied laptop, I get this message: "You have asked Firefox to connect securely to us-mg5.mail.… (funda kabanzi)

When I log into Yahoo mail on Firefox 40.0.3 (on Windows 7) on my company-supplied laptop, I get this message: "You have asked Firefox to connect securely to us-mg5.mail.yahoo.com, but we can't confirm that your connection is secure."

I cannot create an exception: "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."

The "technical details" section states: "us-mg5.mail.yahoo.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)"

This does not happen at home, so the company laptop has something to do with it, but, even on the company laptop I do not have this problem when using Chrome, so it's not that the company does not allow access to outside mail.

On Firefox, the problem is intermittent. Sometimes, there is no problem and everything works fine. Clearing history/cookies/cache and restarting does not fix the problem. It sometimes goes away on its own for a little while, but then returns.

I have searched every database I could for answers, but have found no solution yet. The computer clock is correct, I'm not using Avast, etc. (some of the other situations I've run across).

I hope that I can get this resolved, because I'd rather keep using FF, which I've used for years, than switch to Chrome.

Thanks for your help, in advance.

Asked by GrishaTigger 5 iminyaka edlule

Answered by jscher2000 5 iminyaka edlule

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Disable untrusted connection

Hello, I use firefox for work and use only certain sites and this message is really annoying, especially for intranet sites. So, I really want to know how to totally disa… (funda kabanzi)

Hello,

I use firefox for work and use only certain sites and this message is really annoying, especially for intranet sites. So, I really want to know how to totally disable this security type of checks.

I already spent to much time and this, I don't want to do debugging or stuff like that, I just want to totally disable any check for "untrusted sites" and yes I am fully aware of the dangers, attacks etc.

And actually I find it quite annoying that Firefox blocks me from accesing something I want. Warnings are OK, but totally blocking me, not even "I understand this, add exception ... bla bla" is not kosher.( the error is sec_error_unknown_issuer)

Thank you.

Asked by Marcel99 5 iminyaka edlule

Answered by Marcel99 5 iminyaka edlule

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Beveiligde verbinding mislukt / Secure connection failed

[NL] Als ik sites als facebook.com en youtube.com wil openen krijg ik de melding "Beveiligde verbinding mislukt". Hoe los ik dit op? Andere sites als google.com, 9gag.com… (funda kabanzi)

[NL] Als ik sites als facebook.com en youtube.com wil openen krijg ik de melding "Beveiligde verbinding mislukt". Hoe los ik dit op? Andere sites als google.com, 9gag.com en instagram.com (eigenlijk alle andere sites die ik uitgeprobeerd heb) doen het wel!

[EN] When I open sites like facebook.com and youtube.com I get the message "Secure connection failed". How to fix this? Other sites like google.com, 9gag.com and instagram.com (basicly every other site I tried) are doing well!

Asked by GvanBakel 5 iminyaka edlule

Answered by cor-el 5 iminyaka edlule