Firefox Support Forum

I forgot that I need to use my iPad email. My desktop is not speaking to the Internet this week. Troubled shooters are no solution. The closest I can come to the problem is a home page message on chrome. It says "DNS probe finished no internet" not much to go on for me anyway. Appreciate any help anyone can provide. I suspect a proxy problem, but that is way over my head. I am old in years and new in computer talk, so be simple in steps to solve. Thanks. George sends.

_{edit: removed personal information for your protection. (philipp)}

Mac OS X 10.10.5

Firefox 40.0.3

I have set FireFox to use a proxy(just the browser not my entire system) but there simply is no prompt for username and password in Preferences: Advanced: Network: Connection settings. Additionally, many times people bring up changes that need to made in about:config but either those preference names no longer exist or they have no effect on this issue.

Does anyone know how to get FireFox to prompt for username/password or where to find the login?

Thanks, MDS

Can you add auto proxy-setting function, meaning that browser can auto detect proxy like Chrome do? I'm studying in an University and each time i go to class i have to change the proxy setting to access the internet and change back when i'm go back to the dormitory which kind of annoying. Please acknowledge.

The manual proxy settings no longer work for me with v32.0.3 Windows 32-bit version. I have tried disabling all add-ons, resetting everything, and removing then reinstalling.

Anything else I can try?

It happens after i changed my proxy setting few days ago. Now every time after i start Firefox, i have to click option--> proxy setting and then click OK without any changes or mirror changes, it then works.

I cant save my setting in the option--> proxy page. Every time I start firefox, the proxy setting is selected as "manual" with nothing in the ip blanks, although I have changed it to "Auto" last time before i closing it.

The problem is not fixed under the "add-ons disabled" mode. The removal of caches, cookies or sth else do not work either.

What should I do? Plz reply me, it's annoying.

The update to Firefox 63 was installed on my work PC this morning and now all websites take ages to load.

I checked our connection speed and it's 480Mbps. Chrome opens the pages instantaneously. I tried turning off the new Content Blocking in Firefox and it made no difference.

Any idea why it's so much slower and what I can do to fix it?

I use Craigslist a lot and several times have gotten this message (below), and have found that it's a common problem. After researching it have found that it's a common issue and seems most common solution is installing a proxy. I wanted a safe one that is compatible with Firefox, so installed the add on FoxyProxy, but still having the same issue. Thanks for reading and any help would be appreciated.

This IP has been automatically blocked. If you have questions, please email: blocks-b1441325692518273@craigslist.org

Switching from Safari to Firefox, I wanted to use the same proxy settings. My first try was to use the system's settings, as it gets automatic proxy configuration from the right URL. This worked alright for Safari! On Firefox however, if I'm connected to the VPN I can access all websites in our VPN, but none outside, as I get the SEC_ERROR_UNKNOWN_ISSUER (can't always add an exception) As soon as I exit the VPN, firefox is "unable to find the proxy server".

I've tried all other kinds of ways to connect via that proxy - manually connecting, by URL in firefox or by automatically detecting, but nothing solves my problem. The automatic configuration shouldn't be the problem as it works fine for Safari and shouldn't be any different for Firefox.

I'd really appreciate any help on the subject.

at work we use a proxy network with authentication ONLY with the firefox browser i have proxy problems. I see the page access denied by the proxy server, the only solution is to close and open the application.

Since two updates ago FF started to ask for proxy authenticaton twice or more, before last updates it was asking for it only once. The proxy signon request is "The proxy moz-proxy://xxx.xxx.xxx.xx:**** is requesting a username and password..." To be more precise I have a signon request when I click on a website icon and then I have an additional request when I type the first character in the google search bar (this happens only after the recent updates). If I try to write something in the URL edit box instead of google search bar I get multiple proxy signon request, quite every typed character! It's very frustrating... The NTLM proxy is not on the same domain of the windows user. I have tried changing all the possible settings without any effect, I tried to set: - network.negotiate-auth.trusted-uris - network.negotiate-auth.delegation-uris - network.negotiate-gsslib - network.automatic-ntlm-auth.trusted-uris to the proxy domain without effect and signon.autologin.proxy is set to true. I have also tried to reset FF and to remove all the plugins but the problem persisted. Please could you help me to find a solution to this problem? For me should be fine to have the first proxy signon request as it was until few weeks ago before the last two updates. Thank you

I use the a proxy :

http://localhost:4444/wd/hub

every time I use it I get the message Secure Connection Failed...

Is there a way I can add an exception for this?

I would need to do so using the about:config

My network is using proxy to get connected to internet. User authenticate to proxy using username and password from Active Directory. I am unable to authenticate to proxy, it keep asking password even I have supplied the correct password. I tested the condition using other browser and it works with Chromium. How should I connect to the proxy ?

Attached the pop-up

One user can log on to the internet - no problem, but other user gets - "The Proxy Server is Refusing Connections. E-mails are good all around. Have checked settings, but can't find any solution.

Firefox just says "connecting" on the tab and after thirty minutes the page doesn't load. I have tried restarting my computer a few times, and have uninstalled then reinstalled Firefox. It is not a problem with the connection and does not appear to be a problem with my security. I've been using Firefox for over a year on this computer, then suddenly this. What do I do?

In Firefox i set an SOCKS5 proxy. But for the past months it is numerous case that i accidentally accessed webpages being not proxiffied / not using proxy and i was unaware about this and realised the fact too late..

For example after proxy managing plugin installation or i temporarilly disabled proxy.

My aim is to prevent me accessing webpages without proxy. I mean somehow locking the firefox proxy configuration so even plugins cant modiffy my firefox proxy setting.

Just want to be sure i will never access internet without proxy.

Having latest Firefox and WIndows Vista.

PS: i sitll need unproxiffied access to certain websites. I have the whitelist in my Firefox proxy configuration now.

I get the error message at the bottom. Yes, my firefox already has "no proxy" selected in the preferences page. I'm able to use Edge fine, but for firefox it does not seem to matter what network I try to connect to. Occasionally it will load some websites like Wikipedia, but then immediately fail anything past that or if I try a different site. Sometimes if I try youtube it will only partially load and then the unable to connect to proxy message will appear in the embedded page videos. Sometimes trying a network reset and then restarting the pc fixes the issue, sometimes it doesn't... I don't know if it has anything to do with this issue but I'm also using NordVPN. Sometimes I am able to get to websites before nord connects itself, sometimes it doesn't matter even if nord does not try to autoconnect. Sometimes it will connect and my internet works fine. I've tried setting up an actual nord proxy through firefox preferences and it doesn't help either. Proxy or no proxy I can't get things to load. When attempting to reach sites I'll get a little message in the bottom left corner of firefox as it tries to reach a website, stuff like: reading img-getpocket.cdn.mozilla.net, looking up *sitename*

Don't know what the problem is and I exhausted my limited IT knowledge a while ago, googling for answers hasn't helped.

Unable to find the proxy server

Firefox is configured to use a proxy server that can’t be found.

   Check the proxy settings to make sure that they are correct.
   Check to make sure your computer has a working network connection.
   If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the Web.

When I browse to https://www.pandora.com/ I get the "Secure Connection Failed" error with exactly the same text as in the screenshot at https://support.mozilla.org/en-US/kb/secure-connection-failed-error-message

This is a really poor error message. It tells me nothing about what's actually wrong and how to fix it. WHY did the secure connection fail? Is there any way to find this out?

The site gets an A- from SSL labs https://www.ssllabs.com/ssltest/analyze.html?d=www.pandora.com&lates... and definitely supports TLS 1.2, so I'm pretty sure the problem is with Firefox and not with Pandora, but the error message is horrible regardless.

Firefox automated update breaks it. After it is broken, downloaded Firefox compressed file firefox-64.0.tar.bz2 twice. Extracted to Downloads directory. Wouldn't run after extraction and running Firefox binary. Twice. Downloaded. Extracted. Wouldn't run. Broken. From the directory of the extracted binary, tried to run the firefox binary from a terminal. Native Mozilla Iceweasel runs instead. The following is the output: knoppix@Microknoppix:~/Downloads/firefox$ firefox (process:4452): GLib-CRITICAL **: g_slice_set_config: assertion `sys_page_size == 0' failed FoxyProxy settingsDir: /home/knoppix/.mozilla/firefox/lllxrd8r.default-1529708858245/foxyproxy.xml I have Knoppix 7.2.0 in perfect health. Before automatic update, firefox used to run. Tor browser based on Firefox runs. Google Chrome based on Firefox runs. Everything else runs. This is for your information. Sent messages to forum and community. No response.

Regards,
Rajib