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Firefox fails to resolve local/VPN DNS

I am using Firefox on Linux (Ubuntu 20.10) to work from home over OpenVPN. Recently the VPN configuration was changed to use split tunneling to improve our internet conne… (read more)

I am using Firefox on Linux (Ubuntu 20.10) to work from home over OpenVPN. Recently the VPN configuration was changed to use split tunneling to improve our internet connection. Since then I have had several DNS resolving issues in Firefox.

We use an on premise DNS server as an alternative to `localhost` domain names so we can access other developers' environments and so a few services can do the same. Our URL structure is like projectname.[optional personal identifier.]localhost.[type].nl. Without the [optional personal identifier], or when nothing is configured for it, the ip address is 127.0.0.1.

In Linux' OpenVPN configuration I have "Use this connection only for resource on its network" enabled for IPv4 and IPv6 is disabled (to benefit from split tunneling). With that enabled Firefox usually fails to resolve such development hostnames.

- As far as I know I do not have DoH enabled (and the about:networking log further down tells so too). - I do have `dnsmasq` enabled (with configuration for the above domain formats to route to 127.0.0.1 also) in an attempt to fix some issues before the split tunneling was configured correctly. And in an attempt to try and get Firefox to handle these DNS resolving issues. - `dig` on the command line for the same domain works just fine. - Adding hostnames to /etc/hosts works. But that's becoming a chore, working on dozens of projects over months.

Why is Firefox failing to resolve such domain names? Should I just create a Bugzilla issue?

I created a log with about:networking set to `timestamp,nsHostResolver:5`:

[Parent 5337: Main Thread]: I/Logger Flushing old log files 2021-06-09 07:42:58.009170 UTC - [Parent 5337: Socket Thread]: D/nsHostResolver Resolving host [somedomain.localhost.type.nl]<^partitionKey=%28http%2Ctype.nl%29> - bypassing cache type 0. [this=7f4d8a1732e0] 2021-06-09 07:42:58.009195 UTC - [Parent 5337: Socket Thread]: D/nsHostResolver No usable record in cache for host [somedomain.localhost.type.nl] type 0. 2021-06-09 07:42:58.009200 UTC - [Parent 5337: Socket Thread]: D/nsHostResolver NameLookup host:somedomain.localhost.type.nl af:0 2021-06-09 07:42:58.009206 UTC - [Parent 5337: Socket Thread]: D/nsHostResolver NameLookup: somedomain.localhost.type.nl effectiveTRRmode: 1 flags: 2001 2021-06-09 07:42:58.009210 UTC - [Parent 5337: Socket Thread]: D/nsHostResolver TRR service not enabled - off or disabled 2021-06-09 07:42:58.009215 UTC - [Parent 5337: Socket Thread]: D/nsHostResolver NativeLookup host:somedomain.localhost.type.nl af:0 2021-06-09 07:42:58.009229 UTC - [Parent 5337: Socket Thread]: D/nsHostResolver DNS thread counters: total=1 any-live=0 idle=1 pending=1 2021-06-09 07:42:58.009236 UTC - [Parent 5337: Socket Thread]: D/nsHostResolver DNS lookup for host [somedomain.localhost.type.nl] blocking pending 'getaddrinfo' or trr query: callback [7f4d386f5e80] 2021-06-09 07:42:58.009250 UTC - [Parent 5337: DNS Resolver #22]: E/nsHostResolver DNS lookup thread - Calling getaddrinfo for host [somedomain.localhost.type.nl]. 2021-06-09 07:42:58.076889 UTC - [Parent 5337: DNS Resolver #22]: D/nsHostResolver Calling 'res_ninit'. 2021-06-09 07:42:58.137055 UTC - [Parent 5337: DNS Resolver #22]: E/nsHostResolver DNS lookup thread - lookup completed for host [somedomain.localhost.type.nl]: failure: unknown host. 2021-06-09 07:42:58.137146 UTC - [Parent 5337: DNS Resolver #22]: D/nsHostResolver nsHostResolver::CompleteLookup somedomain.localhost.type.nl 0 804B001E resolver=0 stillResolving=0 2021-06-09 07:42:58.137152 UTC - [Parent 5337: DNS Resolver #22]: D/nsHostResolver nsHostResolver record 7f4d63a0a7c0 new gencnt 2021-06-09 07:42:58.137162 UTC - [Parent 5337: DNS Resolver #22]: D/nsHostResolver Caching host [somedomain.localhost.type.nl] negative record for 60 seconds. 2021-06-09 07:42:58.137166 UTC - [Parent 5337: DNS Resolver #22]: D/nsHostResolver CompleteLookup: somedomain.localhost.type.nl has NO address 2021-06-09 07:42:58.137172 UTC - [Parent 5337: DNS Resolver #22]: D/nsHostResolver nsHostResolver record 7f4d63a0a7c0 calling back dns users status:804B001E

Asked by Alex 6 days ago

Last reply by Alex 6 days ago

Discord notifcations not showing on browser tab in FF 89.0

I recently updated to Firefox 89.0. I like the new look and feel, but ever since updating, I no longer see the little red notification emblem on the tab in Firefox when … (read more)

I recently updated to Firefox 89.0. I like the new look and feel, but ever since updating, I no longer see the little red notification emblem on the tab in Firefox when I have unread messages.

I've attached an image showing the tab in Firefox 89.0 (Left side) and the same Discord session in Firefox 88.0.1 (Right side). In Firefox 88.0.1, the notification emblem shows on the tab, but in FF 89.0, it doesn't.

Does anyone know if this is this a bug or some kind of option that I can change in FF 89.0?

Thanks for any help or advice anyone has to offer!

Asked by amaylia 5 days ago

playing youtube videos CPU is at 100% on all cores

playing youtube videos 720p CPU goes up to 100˚C and 100% CPU on all cores it is since upgrade 88.0, before it was ok compared to chromium browser 720p ~ 20% HW: I7-3630Q… (read more)

playing youtube videos 720p CPU goes up to 100˚C and 100% CPU on all cores it is since upgrade 88.0, before it was ok compared to chromium browser 720p ~ 20% HW: I7-3630QM 4/8 cores Manjaro linux

if I load 2-3 YT videos in tabs, the playback stops, changing tabs takes seconds, and also slows down other applications

Asked by Burt0n 5 days ago

How to prevent an user from disabling and uninstalling an add-on (LeechBlock NG)?

Is this possible? I'm on Linux and i thought a possible solution could be to customize some config files and then change the ownership to root, but no idea where to start… (read more)

Is this possible? I'm on Linux and i thought a possible solution could be to customize some config files and then change the ownership to root, but no idea where to start.

Asked by fsfF 5 days ago

Shortcuts with small images.

My shortcuts had large images on them and now they are half the size, but the shortcut is still the same size. How do I make larger images or go back to the theme I had b… (read more)

My shortcuts had large images on them and now they are half the size, but the shortcut is still the same size. How do I make larger images or go back to the theme I had before the last update. I'm using Firefox browser 89.0 (64 bit) for Linux mint. I hate this new theme. I'm getting older and sometimes my eyes don't work like before and I have to read the text. Images are easier for me to see. Don't make things that I have to accept. Thank you.

Asked by dalefolse 5 days ago

Different Sync Items between different PCs

I have 3 systems that I want to use Firefox Sync on. PC: everything. Laptop 1: everything but addons and settings. Laptop 2: bookmarks only. I cannot make the sync settin… (read more)

I have 3 systems that I want to use Firefox Sync on.

PC: everything. Laptop 1: everything but addons and settings. Laptop 2: bookmarks only.

I cannot make the sync settings persistent. After every sync all system sync settings reverted to the latest sync system. For example, set sync setting for laptop 2, then after sync started on 3 machines all 3 only sync bookmarks now; set sync for laptop 1, then after sync everything is on Laptop 2. Chrome did this really well so I can isolate some sync features on certain machines.

How can I do this on Firefox?

Asked by vmnguyen251 5 days ago

Connect to Iomega Home Media Page

Hi, I have a Iomega Home Media Page (NAS) I've been using for over 5 years now. I get Error code: SSL_ERROR_UNSUPPORTED_VERSION when I try to access. Things have ecently … (read more)

Hi, I have a Iomega Home Media Page (NAS) I've been using for over 5 years now. I get Error code: SSL_ERROR_UNSUPPORTED_VERSION when I try to access. Things have ecently changed so the buttons I have used are no longer available. Now I get this message after clicking thr available buttons:


An error occurred during a connection to 192.168.1.201. 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.

Learn more…

This website might not support the TLS 1.2 protocol, which is the minimum version supported by Firefox. Enabling TLS 1.0 and TLS 1.1 might allow this connection to succeed.

TLS 1.0 and TLS 1.1 will be permanently disabled in a future release.

What can I do to resolve this issue, so I can access my NAS? Thank you for you assistance.

Asked by donaldrshaffer 4 days ago

Firefox keeps crashing at startup

Hi, My name is Julio. I'm from Brazil and i'm using Ububtu 18.04 LTS OS. After an update/upgrade routine firefox have started to crashing at startup. I've tried almost e… (read more)

Hi,

My name is Julio. I'm from Brazil and i'm using Ububtu 18.04 LTS OS. After an update/upgrade routine firefox have started to crashing at startup. I've tried almost everything avaible on mozilla's support webpage (https://support.mozilla.org/pt-BR/kb/falhas-do-firefox-solucione-previna-e-obtenha-ajuda#w_peca-ajuda-para-solucionar-esta-falha). I've already removed manually the folder .mozilla (~/.mozilla) and tried a clean install using different ways: ubuntu repository, comand line (sudo apt install firefox), synaptic repository, downloading the firefox-89.0.tar.bz2 file on firefox webpage... and nothing have worked for me. I can't access the troubleshoot mode (the app crashes before that). When i ran firefox on comand line the outcome is:

ExceptionHandler::GenerateDump cloned child 12536 ExceptionHandler::WaitForContinueSignal waiting for continue signal... ExceptionHandler::SendContinueSignalToChild sent continue signal to child Exiting due to channel error. Exiting due to channel error. Exiting due to channel error. Exiting due to channel error. Exiting due to channel error. Exiting due to channel error. Exiting due to channel error. Exiting due to channel error. Exiting due to channel error.

Despite the information avaible on support webpage, i couldn't find a folder ~/.mozilla/firefox/Crash Reports/submitted. I've found just text files: LastCrash and submit.log (and another stuffs).

Follows the content of submit.log file:

[dom 06 jun 2021 23:10:29 -03] Crash report submitted successfully [dom 06 jun 2021 23:13:31 -03] Crash report submitted successfully [dom 06 jun 2021 23:16:23 -03] Crash report submitted successfully

And the content of LastCrash is:

1623033026

Could somebody help me, please?

Asked by rochajcs 1 week ago

Last reply by rochajcs 4 days ago

multiple container designed sites

Hi, Issue with : google results with google.* set to open in its own container and every other websites outside. Why does the "limit to designed websites" feature functio… (read more)

Hi,

Issue with : google results with google.* set to open in its own container and every other websites outside.

Why does the "limit to designed websites" feature functions for all websites except mozilla.* please ?

This is really annoying to have to go back each times one didn't check the url before click in google results.

Thanks

Asked by lassy_ 3 days ago

Password prompt for primary password appears while using a different application

I have set a primary password in Firefox. Sometimes, the password prompt appears out of nowhere. For example, I have Firefox running in the background while I'm using a c… (read more)

I have set a primary password in Firefox. Sometimes, the password prompt appears out of nowhere. For example, I have Firefox running in the background while I'm using a completely different application, and suddenly, the password prompt appears, asking me for my Firefox primary password.

This is very distracting, so I'm wondering if it's possible to configure Firefox to ask me for my primary password only while I'm using it. I don't care if the prompt appears as soon as I start Firefox, or whenever a new page is opened that requires a password. The only important thing is that the password prompt doesn't distract me while I'm using a different application.

Thanks in advance for any hints.

Asked by bender842 3 days ago

Persistent white space at the top of any web page including Firefox internal ones

Since the latest update, Firefox shows a white space at the top of all web pages, covering almost half the screen. This includes customisation screens for addons, themes,… (read more)

Since the latest update, Firefox shows a white space at the top of all web pages, covering almost half the screen. This includes customisation screens for addons, themes, and also the troubleshooting page. The only page that seems unaffected is Firefox's own settings.

The issue seems linked to the toolbar somehow, as entering fullscreen mode temporarily hides the issue. However, as soon as the cursor moves up far enough to show the tabs and search bar, the white space also reappears. Hiding either the menubar, the bookmarks toolbar, or both did not fix the issue.

Restarting Firefox in troubleshooting mode seemed to help, but I have not managed to find the root cause. These are the things I tried, first one by one and then all at once, with no result:

  • Deactivating addons
  • Switching to system default theme
  • Deleting userChrome.css
  • Clicking "Refresh Firefox..." on the troubleshooting page

Asked by Paddy 4 days ago

Last reply by Paddy 3 days ago

how may i highlight certain tabs on the tab menu?

my tabs already happily distinctly show which tabs are live and which are still unactivated, by enabling about:config:toolkit.legacyUserProfileCustomizations.stylesheets … (read more)

my tabs already happily distinctly show which tabs are live and which are still unactivated, by enabling about:config:toolkit.legacyUserProfileCustomizations.stylesheets with the below userChrome.css.

how might i get something similar for the tab menu?

~/.mozilla/firefox/frir19so.default-nightly/chrome/userChrome.css: .tabbrowser-tab[unread] {

  font-style: italic!important;

} .tabbrowser-tab[pending], #alltabs-popup menuitem[pending] {

  background-image: -moz-linear-gradient(blue,brown)!important;
  opacity: .6!important;

} .tabbrowser-tab[pending] .tab-text {

  color: white!important;

}

Asked by refoyn 3 days ago

how i resolve this error in a webgame?

hello i play a browser game called Grail Online Era, but now firefox gave this error, can someone help me? the site is: era.graalonline.com The error: An error occurred r… (read more)

hello i play a browser game called Grail Online Era, but now firefox gave this error, can someone help me? the site is: era.graalonline.com

The error: An error occurred running the Unity content on this page. See your browser JavaScript console for more info. The error was: RuntimeError: index out of bounds @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[95957]:0x1c92b08 @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[89543]:0x1a283dc @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[89840]:0x1a3a278 @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[91097]:0x1aeb268 @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[92522]:0x1bcc8f8 @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[92481]:0x1bc567d @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[92434]:0x1bc2fd4 @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[92219]:0x1b95f29 @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[92214]:0x1b9533c @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[93416]:0x1c2d7ea @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[93413]:0x1c2d5a6 @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[93407]:0x1c2cf24 @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[95925]:0x1c8f11b @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[81308]:0x18671e1 @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[67803]:0x164611a @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[64910]:0x15e8739 @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[64193]:0x15c972c @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[6005]:0x2c3de4 @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[6003]:0x2c3abc @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[12576]:0x521b00 @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[12552]:0x5204ef @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[14895]:0x65b29c @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[14894]:0x65afb5 @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[12998]:0x551526 @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[12671]:0x52b755 @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[12671]:0x52b76a @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[12666]:0x52b281 @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[12659]:0x5292de @blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877 line 8 > WebAssembly.instantiate:wasm-function[96370]:0x1ca86d7 unityFramework/Module.dynCall_v@blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877:8:556776 browserIterationFunc@blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877:8:197533 runIter@blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877:8:200606 Browser_mainLoop_runner@blob:https://era.graalonline.com/a8e18934-bce6-4e75-b705-eaceec840877:8:199068

Asked by maximusterm 3 days ago

Last reply by maximusterm 3 days ago

Crashes on Firefox 89.0/Ubuntu 20.04

Hi! After updating to Firefox 89.0 on Ubuntu 20.04, tabs and the browser itself crash randomly. I've tried running Firefox in safe mode and in a new profile, but still se… (read more)

Hi! After updating to Firefox 89.0 on Ubuntu 20.04, tabs and the browser itself crash randomly. I've tried running Firefox in safe mode and in a new profile, but still see crashes.

Here are some crash report IDs:

  • bp-8bb7ae5d-fd5f-4929-9419-5f8620210612
  • bp-033e96d3-a772-4fe1-a52d-98a2e0210612
  • bp-69e46c11-46c9-4918-9a4c-1ebfe0210612
  • bp-ed58dca3-c9f9-4d29-854b-7473b0210612
  • bp-b493c4b5-1d0e-4850-b523-a2efe0210612
  • bp-5f6fe05d-93c1-4164-9988-d14af0210612
  • bp-30510ae5-6f9d-428e-91ff-d91e00210612

Update: These crashes are likely due to bad RAM.

Asked by msmolens 3 days ago

firefox snap 89.0, to play video, you need to install the required video codecs

On ubuntu 20.04, the snap version of firefox can't play some videos. Some youtube videos will play but streams won't, and then I get the message "to play video, you need … (read more)

On ubuntu 20.04, the snap version of firefox can't play some videos. Some youtube videos will play but streams won't, and then I get the message "to play video, you need to install the required video codecs". On telegram web and tweetdeck I also get this message while trying to play some video.

Since it's a snap, nothing I do on my system will solve the problem, I cannot install any codecs.

It's firefox 89.0

Asked by Lucas Zanella 2 days ago

Keyboard ShortCuts

I'm a left handed mouse user. For editing purposes, I don't use my left hand, I use my right hand. And, generally use the right handed keyboard shortcuts as defined by Mi… (read more)

I'm a left handed mouse user. For editing purposes, I don't use my left hand, I use my right hand. And, generally use the right handed keyboard shortcuts as defined by Microsoft a long time ago. I've notice that some of the short cuts have been implemented, while others are not. It is possible to implement them all, as it's annoying when I try to do a copy and paste operation, and have to .. Left Click .. my mouse to execute a copy operation, while pressing [ SHIFT + INSERT ] to do the paste operation. I would prefer to just press [ CTRL + INSERT ] to copy.

PS .. I've also noticed that [CTRL + END] works, while [CTRL+ HOME] does not.

Asked by mfuhrman 2 days ago

[Bug report] Impropper "download folder" action

I think I had found a bug in Firefox 89 for Ubuntu 20.04 (64-bit). I have set in the options that Firefox should ask where the files with will be downloaded should be pla… (read more)

I think I had found a bug in Firefox 89 for Ubuntu 20.04 (64-bit).

I have set in the options that Firefox should ask where the files with will be downloaded should be placed. Despite of that, Firefox download the files to the default folder (Downloads in the user home directory).

Asked by Mcgiwer 2 days ago

Why does Firefox share data between google domains even with all privacy options on?

I have noticed that when I manually log in into accounts.google.com with no prior cookies in the browser and no association with a google account prior to that, it automa… (read more)

I have noticed that when I manually log in into accounts.google.com with no prior cookies in the browser and no association with a google account prior to that, it automatically logs me into sites like youtube.com, even with the strictest cookie policies (tried with Strict, custom+cross-site and custom+third-party). I do not particularly mind privacy wise since I'll log into them with the same account anyways, but as far as I understood, there should be absolutely no way this should happen. Cookies should be isolated by domain, I have uBlock Origin installed which prevents cookie sharing between domains by setting some CNAME records in subdomains (Uncloak canonical names), and afaik Firefox does not automatically read the google account cookies and share them around - if it did, that would be even more serious. So what is happening here and how can I change that? This seems to be a serious issue that I'm honestly not comfortable with out of principle since I chose the strictest settings.

Asked by gggh 2 days ago

Last reply by gggh 2 days ago

Gestures on Firefox Linux require "alt" key

Hello, The gestures defined by browser.gesture.swipe.* do not work on Firefox Linux unless the ALT key is held down. I only discovered it that worked at all with ALT by a… (read more)

Hello,

The gestures defined by browser.gesture.swipe.* do not work on Firefox Linux unless the ALT key is held down. I only discovered it that worked at all with ALT by accident while searching about this issue...

Is there a way to get gestures to work WITHOUT requiring the use of the keyboard (which would seem to defeat the purpose of having touchpad gestures)?

Thanks.

Asked by filordellia 2 days ago