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… (tuilleadh eolais)

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 1 mhí ó shin

Last reply by Alex 6 lá ó shin

Drag/drop e-mail or attachment from Microsoft Office to Firefox

Hello all, Lately I received a report from some colleagues that a certain feature is not working in Firefox that appears to be working on any other browser. When drag/dro… (tuilleadh eolais)

Hello all,

Lately I received a report from some colleagues that a certain feature is not working in Firefox that appears to be working on any other browser.

When drag/dropping e-mails and/or attachments from Microsoft Outlook (Microsoft 365 Apps for enterprise) to a drop-field in Firefox (88.0.1 - 64-bit) nothing happens.

When using Firefox we can drag/drop files from Windows Explorer, but not from Outlook.

The same fields do work flawlessly when drag/dropping e-mails and/or attachments from Microsoft Outlook in Google Chrome, Microsoft EDGE, Opera and Safari. So Firefox is the only browser - on several OS's - that does not allow e-mails/attachments to be dropped from Microsoft Outlook. We have tested multiple users on different workstation and we have tested drop-fields from several web applications.

Surprisingly I cannot find any solution to this. The only similar cases I was able to find are from a couple of years ago but are about the other way around (so drag/dropping files FROM Firefox to another application).

At this moment I am advising my colleagues to use another browser. But we really want this to work properly with any browser of choice. Hope this community can help us out.

The update to Firefox 89.0 did not fix this problem.

Note: UAC is enabled on the workstations. Disabling does not affect anything. Tested attachments: .pdf, .docx, .html & .xlsx

Asked by Wouter Moed 2 mhí ó shin

Last reply by Wouter Moed 19 uair ó shin

Some web pages not displaying properly after July 19, 2021 update

Since my firefox browser updated yesterday with the July 19, 2021 update, some web pages are not displaying properly. For example, I use Yahoo mail, and when I click on … (tuilleadh eolais)

Since my firefox browser updated yesterday with the July 19, 2021 update, some web pages are not displaying properly. For example, I use Yahoo mail, and when I click on an email, most of the content is not showing, including the sender's message. Other frequently used websites are similarly affected.

This same problem occurred after another recent firefox update, and it was eventually fixed when I "checked for updates".

I'm hoping this bug is widespread enough that the Mozilla team will be providing a further update that fixes this.

Meanwhile, if anyone has an idea, I'll listen!

Asked by mellodron 1 seachtain ó shin

Last reply by mellodron 4 lá ó shin

Firefox freezing with Yahoo News Articles

For the last couple of months I've been having an issue with Firefox freezing when I bring up a news article on Yahoo. It only happens when there is a video attached to t… (tuilleadh eolais)

For the last couple of months I've been having an issue with Firefox freezing when I bring up a news article on Yahoo. It only happens when there is a video attached to the article, the video and the text of the article won't load. After a few minutes there is a message saying "This page is slowing down Firefox. To speed up your browser, stop this page". All of the Yahoo news articles work fine when I bring them up in Chrome. How can this be fixed??

Asked by mikeb2115 1 seachtain ó shin

Last reply by mikeb2115 6 lá ó shin

Getting mobile versions of some sites instead of desktop

Several days ago, Firefox started giving me what seem to be mobile versions of some sites (mostly Google Drive and Docs) instead of the desktop layouts I want. (It's URL … (tuilleadh eolais)

Several days ago, Firefox started giving me what seem to be mobile versions of some sites (mostly Google Drive and Docs) instead of the desktop layouts I want. (It's URL comes up with "mobile" even when I type in the hard way.) The problem does not affect all sites, but it does mess up several daily. I did not deliberately change my preferences or otherwise alter Firefox.

I have tried bringing Firefox up in safe mode and even removing it and downloading it again. No change.

i also "reset the default user agent on Firefox" per this post: https://support.mozilla.org/en-US/questions/1304470

Help would be much appreciated. I like Firefox much better than the alternatives, but if this doesn't get fixed I will have to give up on it.

Many thanks.

Asked by chris228 5 lá ó shin

Last reply by chris228 1 lá ó shin

cannot copy text from print preview

Hi. I'm a long time firefox user. The past few years, I have not been able to copy text from print preview. This is important to me, as I run a small business and need … (tuilleadh eolais)

Hi.

I'm a long time firefox user. The past few years, I have not been able to copy text from print preview. This is important to me, as I run a small business and need to copy order numbers from the print preview screen to keep my work flow going. I can do this in chrome, but cannot in firefox.

It is nothing I can copy from a website, as it is a link I click to open the invoice.

The only work around that I know of would be to print the pdf to a file, open the file, and copy it from there - but this is not acceptable because it is too time consuming.

If anyone has something that will work, it would be much appreciated.

Asked by mlowe1971 6 lá ó shin

Last reply by mlowe1971 5 lá ó shin

FF won't run

hi, I get this error message when try to open Firefox "Your Firefox profile cannot be loaded. It may be missing or inaccessible" When I try to create a new profile I get… (tuilleadh eolais)

hi,

I get this error message when try to open Firefox "Your Firefox profile cannot be loaded. It may be missing or inaccessible" When I try to create a new profile I get "An unexpected error has prevented your changes from being saved" I have deleted the profiles.ini file I have reinstalled Firefox several times. I can't refresh Firefox because it won't open. If I try to start it while pressing the Alt key I still get the error message above. I'm running Windows 8.1 I have had to download chrome to post on here. I just want my Firefox back!

Asked by cathc 1 seachtain ó shin

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Firefox add-ons (extensions) specifically IDM and Grammarly failed to load when opening firefox

Whenever I open my firefox browser (always up-to-date), certain add-on extensions specifically, IDM and Grammarly fail to load always. In order for them to load, I still … (tuilleadh eolais)

Whenever I open my firefox browser (always up-to-date), certain add-on extensions specifically, IDM and Grammarly fail to load always. In order for them to load, I still need to go to the "manage extensions" then turn on-off in order for them to work. I have tried different solutions that this link provided link text but none of them worked. Can anyone offer a definite solution in my problem?

Asked by nagz06 1 seachtain ó shin

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Yesterday's Update Crashes

Since yesterday's update on my Windows 7, today I first got error messages on pages I usually visit, my home page and the Google signin page among my Favorites. The brow… (tuilleadh eolais)

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Asked by tightpurchaser 1 seachtain ó shin

Last reply by tightpurchaser 1 lá ó shin

Can I reopen windows on a new computer by transfering files from my old computer?

My situation is probably unique but basically, I have a new computer. On my old computer I had a fair few windows open. Because of a lot of different issues (bad battery,… (tuilleadh eolais)

My situation is probably unique but basically, I have a new computer. On my old computer I had a fair few windows open. Because of a lot of different issues (bad battery, no working charger etc.), I have access to the hard drive of my old computer but I can't turn it on anymore and it died before I could reopen most of the windows on my new computer. I'm able to use the hard drive as an external hard drive to transfer everything to the new computer as needed So, I know it's possible to get back bookmarks by transferring the files. I also know that there is a recovery file somewhere in the firefox folder which is used when hitting "Restore previous session" to get back the previous windows Would that mean it's possible to find the file from the old computer's hard drive and move it to the same folder on the new computer to use for the restore function in a similar was as the bookmarks?

Asked by Mike 5 lá ó shin

Last reply by Mike 5 lá ó shin

Google Homepage and Search slow to load after initially opening Firefox

I have Firefox on a couple of (Windows 10) PCs. This problem is happening on one of them. It has two profiles (users), and it's happening on both. If I open Firefox, and … (tuilleadh eolais)

I have Firefox on a couple of (Windows 10) PCs. This problem is happening on one of them. It has two profiles (users), and it's happening on both.

If I open Firefox, and then trying going to google.co.uk, or do any google related search, almost everytime there is an obvious 30-40s delay. Indeed, during this time I can even open up other web sites (immediate), and trying google.co.uk again, and delay continues to occur.

Opening up the Network Console in Firefox, the GET request can be seem and then like clockwork there is about a 41000ms delay until it then continues.

If I open in TroubleShoot mode, same issue.

If I open in a Private Window, the problem does NOT occur.

This problem does NOT happen on my other PCs with Firefox, or any other browser on the PC in question.

This is very frustrating :( You open firefox to do a google search and it takes tens of seconds to resolve (on the first attempt) :(

Asked by NeilF 1 seachtain ó shin

Last reply by NeilF 1 seachtain ó shin

How do I remove Pocket from Firefox entirely? On 26 July 2021

Been using FF since 2005ish. (Me 1946) Latest version (90.0.2 (64-bit) annoys me greatly because I can't remove the unwanted 'Pocket' BS. I've followed several online 'a… (tuilleadh eolais)

Been using FF since 2005ish. (Me 1946) Latest version (90.0.2 (64-bit) annoys me greatly because I can't remove the unwanted 'Pocket' BS. I've followed several online 'advices' on this, including this site, & still it persists.

FF is getting like IE IMO, with all the awkwardness to remove unwanted Bloatware. For an 'Ordinary User'. Could some knowledgeable FF user please explain, in language I can understand, English, but not very Tech Savvy) how I remove Pocket from the browser Thanks.

Asked by bicyclz 1 seachtain ó shin

Last reply by bicyclz 3 lá ó shin

Firefox Version 90.0.1 Only Allows Me To Print Left Side Of Screen

We have always printed Landscape, 50% scale, on Letter size paper when using Firefox. I have updated to Version 90.0.1 and now I can only print the left side of the page… (tuilleadh eolais)

We have always printed Landscape, 50% scale, on Letter size paper when using Firefox. I have updated to Version 90.0.1 and now I can only print the left side of the page. Version was the last version I am aware of that allowed us to print the entire page. Any help would be greatly appreciated.

Asked by rloeb 1 seachtain ó shin

Last reply by rloeb 6 lá ó shin

Firefox popup blocker exception list does not work for private windows

Firefox 90.0.2 (64-bit) on Windows 10. In about:preferences#privacy I have "Block pop-up windows" ticked and 16 websites set as exceptions. This exception list works in … (tuilleadh eolais)

Firefox 90.0.2 (64-bit) on Windows 10.

In about:preferences#privacy I have "Block pop-up windows" ticked and 16 websites set as exceptions.

This exception list works in non-private windows, but not in private ones - popups are blocked and I have to explicitly click "options" and then "show".

This bug was introduced a few releases ago - it used to work OK.

F1 tilda console shortcut stop working

Hello guys, I use tilda console and firefox for many years but now with the keydown/keypress changes in firefox 65 i can't open anymore the dropdown tilda consle with F1 … (tuilleadh eolais)

Hello guys, I use tilda console and firefox for many years but now with the keydown/keypress changes in firefox 65 i can't open anymore the dropdown tilda consle with F1 or other shortcut. Is there anything i can customize in firefox to get back this behaviour? I really need my tilda console opening/closing when i am using browser, and i don't want to use other browser ... unless there's no solution for this. Thanks, Noel

Asked by noeljmf 5 lá ó shin

Last reply by noeljmf 4 lá ó shin

Picture in picture doesn't work for cameras

I have noticed that picture in picture doesn't work for cameras. Why is this its a valid video? Example:https://www.brampton.ca//en/online-services/pages/bramcams.aspx … (tuilleadh eolais)

I have noticed that picture in picture doesn't work for cameras. Why is this its a valid video?

Example:https://www.brampton.ca//en/online-services/pages/bramcams.aspx

Asked by Mace2 1 mhí ó shin

Last reply by Mace2 6 lá ó shin