Why Firefox passes session machine connection?

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• Why is-36 of Firefox on Windows receiving connections from DNS servers? Option network.dns.get - ttl

  Following update Firefox 36, my firewall was flooding asking me to allow external connections from the Internet to my browser. Looking at it more closely, Comodo Firewall indicates that external websites are trying to connect to Firefox, port 53 to an arbitrary port on my machine.

  If I disable the option FF36 new network.dns.get - ttl, it stops. I can't find any documentation or help on this option.

  Why Firefox do this? Is Comodo incorrect when he labels it as an external connection attempt? (It has normally been extremely good to differentiate the incoming and outgoing traffic). I guess that Firefox is trying to determine the TTL for DNS caching, but it is not make sense why DNS servers then try to connect to me.

  I am reluctant to create a firewall rule to that arbitrary Internet connections on my machine are OK as long as their origin on port 53, tips on how to manage all that this new feature is firmly States would be appreciated.

  Thanks in advance for any help.

  Hi grammarye,

  Yes, you're right in thinking that Firefox is trying to find the TTL value. This is new in Firefox 36 behavior and was presented as services frequently changing DNS records (such as Cloudflare) were not working properly for Firefox users.

  Firefox makes asynchronous DNS searches - which means it will make a DNS query and then proceed to perform another task instead of waiting for an answer.

  Your ISP DNS server puts in cache only TTL an area for a short time, so if it does not the current LIFE expectancy, he will interview with other DNS servers to find.

  IANAE, but probably what is happening is:

  1. Firefox tries to find the DNS record for the domain that you want to connect to
  2. Your ISP DNS server does not have the current LIFE expectancy, then connects with other DNS servers to find
  3. During this time, Firefox lingers with something else
  4. DNS server, then reconnects to give you full DNS, including the TTL check
  5. Comodo sees the packets of the DNS server and panic

  I completely agree that arbitrary ports of white list is a bad idea, but in this case, the behavior is completely harmless.

  You can want to whitelist Firefox in your Comodo Firewall, or continue to let network.dns.get - disabled ttl.

  (edited to fix broken links and add a sentence)

• All of a sudden, after a update of firefox, I get "this connection is untrusted" for Facebook, no matter if I use http: or https:, WHY?

  All of a sudden, after a update of firefox, I get "this connection is untrusted" for Facebook, no matter if I use http: or https:, WHY? Here are all the details of the error message:

  This connection is Untrusted

  You asked Firefox to connect safely to facebook.com, but we cannot confirm that your connection is secure.

  Normally, when you try to connect safely, sites will present a reliable identification to prove that you're in the right place. However, the identity of this site cannot be verified.
  What should I do?

  If you normally connect to this site without problems, this error can mean that someone is trying to impersonate the identity of the site, and you should not continue.

  This site uses HTTP Strict Transport Security (HST) to specify that Firefox didn't connect safely. As a result, it is not possible to add an exception for this certificate.

  Facebook.com uses an invalid security certificate.

  The certificate is not trusted because the issuer certificate is unknown.

  (Error code: sec_error_unknown_issuer)

  (Also included a screenshot).

  COR - el said

  You can check the date and time and time zone in the clock on your computer: (double) click on the clock icon in the Windows taskbar.

  • https://support.Mozilla.org/KB/secure+connection+failed

  You can retrieve the certificate and check details such as WHO issued the certificates and the expiration dates of certificates.

  • Click on the link at the bottom of the error page: "I understand the risks".
  • Let Firefox recover the certificate: "Add Exception"-> "get certificate".
  • Click on the button "View" and inspect the certificate and the Coachman, who is the issuer.

  You can see more details like the intermediate certificates that are used in the Details tab.

  If you cannot inspect the certificate by "I understand the risks", then try this:

  Open the chrome URI by pasting or typing this URI in the address bar to open the window "Add the Security Exception" and to check the certificate:

  • chrome://pippki/content/exceptionDialog.XUL

  In the field location type and paste the URL of the Web site

  • retrieve the certificate via the button 'Get certificate '.
  • Click on the "view..." button. "to inspect the certificate in the certificate display

  Check which is the issuer of the certificate.

  You can get more details like the certificate chain in the Details tab of the certificate display.

• Why Firefox and any other browser constantly trying to connect to 178.63.55.0?

  3 browsers I have only Firefox constantly seeks to connect to Hetzner. I tried several firewalls, but none works. To meet nonstop with Hetzner in Germany on port 443.

  Have you downloaded this version of Firefox from the Mozilla site?

  If you still don't find the Safe Mode option, you will have a non-official copy.
  
  If this is the case, please perform a clean reinstallation. ^{(More details)}

• Why Firefox displays my website as an unreliable connection?

  I recently changed my https site and Firefox are now showing my site to www.bizniznet.co.za as an unreliable connection. This can have an adverse impact on my site and cost me customers. Happening everytime I open my site as Firefox is my internet connection by default.
  I need this sorted out because it is a business website and it reflects badly. Could you please help?

  You must install the intermediate certificate missing EssentialSSL CA.

  • https://support.Comodo.com/index.php?_m=downloads & _a = View & parentcategoryid = 1 & PCID = 0 & NAV = 0

• A Machine connects to the internet, the other not - why not?

  I have 2 different machines (one Windows 7 the other Windows 8.1) who are sitting in the same room about 1 meter.

  The Windows 7 machine connects to the internet without any problem.

  Windows 8.1 machine fails to connect to the internet.

  Both machines are on a wireless home network.

  How can I get the machine 8.1 of Windows running on the internet?

  Thanks in advance for any response.

  It's probably the issue of signal strength. Where is the router with regard to the PC? It would be more stable that you can get at least 50% signal strength.

• Why Firefox is not saving my log in info after that I used the option "Remember Me"?

  Why Firefox is not saving my log in info after that I used the option "Remember Me"?
  Whenever I get on a frequently used site where I have already indicated on the Firefox browser to save my log in info, I still need to manually connect. The latest versions of Firefox are not like that. I am running Firefox on both my Imac (OS 10.5.8) and on my Mac Book Pro (Snow Leopard), and on each machine, the latest version of Firefox does the same thing. I don't have this problem with Safari, but I prefer to use Firefox then please let me know if there is anything I can do to solve this problem.

  This has happened

  Each time Firefox opened

  Is two months ago

  If you register your name, and your password in the password manager and then having no other effect that Firefox can fill these name if necessary.
  Firefox is not automatically a session you.
  Many Web sites may use a cookie to remember you, you do not need to open a session.

  Websites to remember you and automatically log you are stored in a cookie that you must allow: Firefox > Preferences > privacy > Cookies: "Exceptions."
  Also make sure that you do not use the delete, search and download Firefox browsing history to erase "Cookies" and the "Site preferences" "browser history".

• Why firefox has become bloated and lazy like IE?

  I tried like hell to stick with firefox, but it became useless.

  Installation of costs, on a new installation of operating system on a PC with 8 cores@3ghz and 32 GB of ram, and firefox is STILL SLOW!

  More than 10 tabs == random crash for a few seconds / minutes
  Have more than 5 tabs and close one that it blocks a few seconds to a minute.
  Have more than 10 tabs open, select "Close other tabs" after the tabs, FF hangs for 30-90 seconds.

  After the closure of the tabs, CPU utilization pulls up to this core... I say for this kernel, because the limit of mozilla firefox for one heart, which wouldn't be so bad, except EVERYTHING ON THE SYSTEM HANGS waiting for THAT ONE CORE to CATCH THE FUCK UP!

  Add on top of that firefox looking more and more like the chrome... I mean.. Firefox is essentially like having the version slow, delayed, shit smell of chrome...

  PLEASE GO BACK TO WHAT MADE YOU FAMOUS!

  A light and fast browser.

  NOBODY WANTS OR NEEDS ALL THAT USELESS GARBAGE YOU KEEP SHOVELLING AWAY!

  Here's an idea, before avant d' ajouter to add more code buggy nonsense that serves nothing real other than to make you look more like a bastardised version of chrome, why don't you actually fix crap buggy, slow garbage code have already set you up?

  STOP TRYING TO BE LIKE THE CHROME! IF I WANTED CHROME FUCKING, I HAD TO INSTALL IT!

  If the next version of Firefox is nothing else than to fix the many problems causing slow performance and high CPU usage, I'll be moving to chrome and leave Firefox and Mozilla to continue its business of a slow and painful death walk down.

  @the-edmeister thanks for the typical canned answer, I am pleased to see that copy - paste works always.

  Canned responses do not work, because the situation is based on a new installation of the operating system and a new installation of firefox.
  All the drivers on the system is new and up-to-date.

  I ALWAYS run through the basic troubleshooting list. If I had found a solution for poor performance and hogging CPU memory/crappy, I him have not posted here.

  @jscher2000
  Thanks for the link, but I had already tried it, work with no joy.

  As for the rest of the answer, I have a few comments and questions:

  Statement: "Mozilla's mission is to drive the web forward, which is to introduce new technologies constantly in Firefox."

  Comment: Change the GUI to work and look like Chrome is not new and innovative. It is simply duplicating someone else's ideas.

  Statement: "at the same time, developers constantly working to improve the efficiency of memory."

  Comment: since when? Over the years, whenever FF has "updated" the memory usage has increased. On rare occasions, it has also introduced memory leaks, or attempted to hide or split to its own use of memory in the secondary threads... plugin-container for a good idea, is an example that has been poorly implemented.

  Statement: "because the browser code is open source, others have used it to create products that look more like older versions of Firefox, or gathered for 64-bit systems, etc..". You can check those and decide if they are more productive for you than the official version. »

  Question: Where might these alternatives. Simply Googling turns a myriad of other browsers, Chrome for most of the results. Versions of firefox based very little I could find are the pale Moon and waterfox.
  Others are based on the FF are for most * nix flavors or specialized for users of niche such as cat and iceweasle for gnu and debian ice respectively, and wyzo based on niche media downloads.

  I understand that Firefox is open source, and if I had the time team, Fund and development to devote to creating a browser standard, basic, no frills, using their source, I would have already.

  My problem is not with Firefox itself, but the struggle continues Mozilla comply Firefox for chrome UI, while gradually adding bloat, instability and some "features" unnecessary which are not needed or requested by users.

  I get that Mozilla tries to innovate. But adding bloat and tracking features of data or features that cannot be used unless the tracking data is enabled is a huge slap in the face of almost all those who have started using firefox because it objected to these measures implemented in other browsers at the time.

  The entire reason why firefox became so popular was because it worked, was quick and did not use all of the system cpu and ram. Why? because at that time, it had all the bells, whistles, gadgets, door knockers, the banana seat, ape-hanger handlebars and a chrome-plated stand... Remove all trash, and the browser would be more likely to cut its use of CPU and memory in two, if not more.

  And Yes... This has turned into a feedback session.
  No, I didn't intend to let him be.
  No, I will not create a survey of 'feedback '... I've done done several times over the years, and as is typical of mozilla, they simply ignore it and do the opposite.

• Why Firefox 31 change all icons PDF and open in browser, require a fix by using REGEDIT to set for all USERS on a computer?

  The solution to use REGEDIT in the question linked below almost fixed my problem with PDF files on more than 30 computers with multiple users on each computer:
  https://support.Mozilla.org/en-us/questions/1013642

  But I need to fix for all users on a computer without logging on each account on each computer. My challenge was to log on as an administrator and change the following key of the overall system instead:

  HKEY_LOCAL_MACHINE\Software\Classes\.PDF

  Name: by default
  Type: Reg_SZ
  Data: FirefoxHtm

  Changed FirefoxHtm to AcroExch.Document.11 data

  I use Adobe Reader XI on Win7 Pro 64-bit machines.
  The problem started when I ran a file downloaded to install the new version of Firefox on computers.

  Why Firefox would require me to use REGEDIT in this way to solve the problem?

  This only happens when you set Firefox as the default browser and Firefox thinks that there is currently no application PDF file handles.

• Install firefox on both machines and created account on one sync. The other is will not sync

  I just recently installed the latest Firefox on both machines. Created a new account on one of them and started to download add-ons and changed preferences, then got to another and signed in. He finished syncing, but none of my changes have been applied to the second machine.

  For now, the Add-ons had synchronized but the customization that I made to the look of it did not.
  These customizations are: move the button right next to the home button and remove the search bar.

  Conclusion: it takes some time (about an hour) to synchronize these things, at least that's what happened with me if my connection was normal and slow at all.

• Why Firefox has disabled the only version of Flash (10.1.53.64) my computer can use? (Mac PowerPC G5) Help!

  Why Firefox has disabled the only version of Flash (10.1.53.64) my computer can use? (Mac PowerPC G5) Help!

  Your computer hardware has arrived at the stage where most of the software needs resources your machine cannot provide because it's too old. You have a few choices.

  1. Get new hardware that can handle the latest software
  2. Use a different operating system, like Linux (which is free)

  I rehabilitated an old G5 recently and it runs very well in the latest Firefox. I put Lubuntu on the machine instead the MacOS. Lubuntu (pronounced Loo-boon-two) is sort of a Ubuntu lite - a user-friendly version of Linux. There are many applications of your choice, and everything is free.

  You can also use the Ubuntu greediest in resources and a little more user-friendly, also free, but you can be more pleased with the performance of Lubuntu instead.

  The PowerPC, I did this on was one of the old blue Bondi ones. Firefox 8 had no problem to start on it at all and has all necessary plug-ins for video, audio, etc... I gave him a church and it works well for them.

  You can download older versions of Firefox, but you'll just open to security problems if you do.

  FYI: The Mac operating system is based on Linux.

• Firefox IOS contains 6 connected devices when none are connected

  When you try to synchronize Firefox in IOS I get 'Not Sync not available'. When I press the "Clock", under "Synchronized devices" icon it said "6 device (s)".

  I only have my laptop and Ipad which I am trying to sync?

  Why Firefox IOS think I have 6 devices?

  Update 1: I uninstalled Firefox on my Ipad, then reinstalled, retried Sync failed and now it says 7 devices? Update 2: this is getting ridiculous - I synced my Ipad via Itunes and Firefox on my Ipad now reflects my laptop. This is despite IOS Firefox still saying "Sync is not available.

  Update 3: without making any change, Firefox on my laptop now syncs with my Ipad and the number of connected devices has been delayed to 1 on Firefox IOS.

  When I request a Sync on Firefox IOS is still says 'Sync is unavailable' but the synchronisation actually takes place.
  

• Why Siri requires an internet connection to work properly?

  Why Siri requires an internet connection to work properly?

  Because his answers do not come from phone, they come from Apple servers. This article can help.

  Use Siri on your iPhone, iPad or iPod touch - Apple Support

• Why firefox built-in PDF Viewer makes windows 10 crashes

  I have a computer with Windows 10. For about two to three months from now, from time to time, my computer/windows crashes when I open or save a PDF in Firefox, which is extremely upsetting.
  I just found out a few days ago that Firefox no longer uses the adobe reader plugin, but uses rather its own PDF Viewer built-in. When I changed the setting to use the external adobe reader software to open / download the pdf files, it seems that my computer no longer crashes.
  So my questions are: why the bult - in the PDF Viewer gives windows crash 10? Will be corrected this problem and when? and finally, why Firefox forces to use its own built-in PDF Viewer when it cannot work properly with windows 10?
  This was the most overwhelming problem that I had with my computer for a long time!

  Start Firefox in Safe Mode to check if one of the extensions (Firefox, Tools/menu key > Modules > Extensions) or if hardware acceleration is the cause of the problem.

  • Put yourself in the DEFAULT theme: Firefox, Tools/menu key > Modules > appearance
  • Do NOT click on the reset button on the startup window Mode safe
  • https://support.Mozilla.org/KB/safe+mode
  • https://support.Mozilla.org/KB/troubleshooting+extensions+and+themes
  • https://support.Mozilla.org/KB/upgrade-graphics-drivers-use-hardware-acceleration

• Why Firefox drains my bandwidth?

  Use the last version I simply open the window and it starts to drain away. I disabled updates, automatic updates Add on and continue to attract like crazy!

  I'm using Chrome now, even though I'm not fond of it due to the lack of choice about updates and UI change. 
  
   I want to use Firefox again!.
  

  Thank you.
  

  Hello, how much firefox drains your bandwidth exactly by just sitting there? Please also open the browser console by pressing ctrl + shift + j and take a look in the network tab, what kind of connections are open...
  Maybe the article How to stop Firefox to make automatic connections can help you as well.