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DNS over HTTPS oddities: fallback, TRR mode

After a recent change of my website's name registrar, Firefox (both on Linux and Android) has been running into issues finding the server/address. I suspect this has some… (read more)

After a recent change of my website's name registrar, Firefox (both on Linux and Android) has been running into issues finding the server/address. I suspect this has something to do with DNS, whether it be DNS over HTTPS (DoH) or otherwise.

Specifically, this seems to happen when DoH is on (as shown by about:preferences#privacy). I have confirmed that `curl --doh-url <cloudflare DNS query> <my website>` also fails to resolve the request.

This leaves me with a few outstanding questions:

  • Do I have any control of whether the DoH request fails? Is this something I can fix through my host or name registrar?
  • The TRR mode shown in about:preferences#privacy appears to be different than the one shown in about:config (2 versus 0, respectively).
  • Shouldn't Firefox be falling back to normal DNS? I have confirmed via `curl` that my website works fine over https.

Firefox and curl results for Linux confirmed on two machines on the same network.

Asked by gabriel.h.brown 11 months ago

Answered by gabriel.h.brown 11 months ago

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Can't bookmark to sub folder

I imported bookmarks from Chrome. I used it for a long time, so I've got 600-some-odd bookmarks in a lot of subfolders. Nested folders are the only way I find what I ne… (read more)

I imported bookmarks from Chrome. I used it for a long time, so I've got 600-some-odd bookmarks in a lot of subfolders. Nested folders are the only way I find what I need.

I followed this advice https://support.mozilla.org/en-US/questions/1366211 - I bookmarked the page. - I "edit bookmark," highlighting the parent folder that's visible on the bookmarks bar. - I click the right-most down arrow. That displays only directories visible on the bookmarks tool bar. - The right-most arrow operates as a toggle between showing the desired parent directory only all of the parent directories visible on the bookmarks tool bar.

In case it matters, I uninstalled and reinstalled Firefox this week, so it's up to date.

Asked by randomuser 11 months ago

Answered by jscher2000 - Support Volunteer 11 months ago

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Unable to Sign in to Costco.com

I am unable to sign into Costco.com using Firefox. I get an error message: "Bad Request - Header Field Too Long HTTP Error 400. A request header field is too lon… (read more)

I am unable to sign into Costco.com using Firefox. I get an error message:

    "Bad Request - Header Field Too Long
    HTTP Error 400. A request header field is too long."

Turning off all extensions didn't help. Opening a private browsing window DID work. Using Chrome DID work.

Thanks!

Asked by compupix 11 months ago

Answered by zeroknight 11 months ago

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Browser managed by my organization

Greetings Firefox Support/CommunityL While reconnecting one of my computers to my Firefox account I saw at the top of the Settings Page: "Your settings are being managed… (read more)

Greetings Firefox Support/CommunityL

While reconnecting one of my computers to my Firefox account I saw at the top of the Settings Page: "Your settings are being managed by your organization". Problem is that I don't belong to any organizations or enterprises having anything to do with my online life. I have been hacked in the past and am paranoid when I see something that doesn't make sense. When I click on the link (trusting that it is indeed from you), it takes me to your Enterprise Policy page showing the following:


Active Policy Name Policy Value

DNSOverHTTPS Enabled false Locked true

I always use secure DNS (DOH or DOT) on everything - network adapters, routers (except the ISP one whose default I can't figure out to circumvent) etc. but on the browser setting pages I am only given the option of having it off: the default, increased, and max protection options are greyed out and cannot be chosen. I guess that explains the policy values but who locked it? My only guess is that is use a Surfshark VPN and realize that in so doing I am using Surfshark's DNS servers but I believe I had this problem before using the VPN. Any help would be greatly appreciated. Thanx.

Pat Ford - dpfmd@msn.com

Asked by D. Patrick Ford, MD 11 months ago

Answered by cor-el 11 months ago

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advanced search using boolean operators

Back in the day, I used to used 'boolean'(?) operators to refine web searches. E.g. if I want to search for "blue whale" and didn't want any ebay returns, I'd type: blu… (read more)

Back in the day, I used to used 'boolean'(?) operators to refine web searches. E.g. if I want to search for "blue whale" and didn't want any ebay returns, I'd type: blue whale -ebay That doesn't seem to work now, is there another method I could use?

Asked by toobmany 11 months ago

Answered by cor-el 11 months ago

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Syncing Android and PC accounts.

When I scan the QR code shown on my computer with my phone and press the sync buttons, I get a message on my phone to; "Open the authentication app and enter the security… (read more)

When I scan the QR code shown on my computer with my phone and press the sync buttons, I get a message on my phone to; "Open the authentication app and enter the security code it provides."

I have no idea what this app is or where to find it to open it. Is it on my phone or my computer? Why can't you just show the code on my computer sync screen?

And, your help pages just repeat the same instruction verbiage as the sync app on my phone. No additional help at all!

Asked by JR 11 months ago

Answered by Paul 11 months ago

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Firefox 116.0.3 (64-bit) do not paste in whatsapp web and other applications

Firefox 116.0.3 (64-bit) do not paste in whatsapp web and other applications exemple I copy an image and want to past it in whatsapp web nothing but it work in brave brow… (read more)

Firefox 116.0.3 (64-bit) do not paste in whatsapp web and other applications exemple I copy an image and want to past it in whatsapp web nothing but it work in brave browser...

Asked by belchech 11 months ago

Answered by belchech 10 months ago

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~10 second delay response when searching

On some webpage, I experience delay response when I trying to search sometime. For example, in Google homepage after typing something or even gibberish the page froze and… (read more)

On some webpage, I experience delay response when I trying to search sometime. For example, in Google homepage after typing something or even gibberish the page froze and not responding for about 10 second but the browser is still functioning (meaning I can still move other tabs or open option). Once that 10s delay is over, it responded with my result. And something when I when to search back something again(not in the homepage), more of the time is response back fast like 0.2s but other time the same 10s delay. This problem also happens in some other website but not all in their search bar. I have try in safe mode. disable all my extension, reinstall Mozilla Firefox, check any windows update and such. Also other browser does not have this problem such as chrome and brave. If this problem still persisting then I would such to other browser but prefer not to as I quite fond of Firefox. Thanks for your help in advance.

Asked by Victor118 11 months ago

Answered by Victor118 11 months ago

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How to Update My Phone Number in Firefox

Locking this thread.Please continue here: [/questions/1422179] My phone number has changed. How can it be updated in Firefox? … (read more)

Locking this thread.
Please continue here: [/questions/1422179]
My phone number has changed. How can it be updated in Firefox?

Asked by Jean Broussard Moore 11 months ago

Last reply by Dropa 11 months ago

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Profile lock prevents launch on workstations with shared remote home

I am using Firefox in a Linux environment with multiple workstations, where I may be logged into more than one workstation at once. The workstations have an auto-mounted … (read more)

I am using Firefox in a Linux environment with multiple workstations, where I may be logged into more than one workstation at once. The workstations have an auto-mounted home file system such that my home directory (including my Firefox profile directory) are shared.

Because of this, when I try to launch Firefox on a second workstation, I get an error saying "Firefox is already running but is not responding". I have read the support articles about this issue, and other community support threads, but none of them address this use case.

I wish to use the same profile, so that I still have all my bookmarks and such, and have them continue to stay up-to-date. How can I do so in this environment?

Asked by tmorris4 5 months ago

Answered by cor-el 5 months ago

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Bookmarks no showing up, no HTML file to upload, tried everything!

Dear Firefox support, I am writing to inquiry about bookmarks. I have hundreds of bookmarks, if not thousands with many folders, which I have saved over the last decade.… (read more)

Dear Firefox support,

I am writing to inquiry about bookmarks. I have hundreds of bookmarks, if not thousands with many folders, which I have saved over the last decade. I have always synced my account and it should all be there upon downloading a new firefox on my new computer. However, the HTML file that it is asking me to upload from is not a file I am able to find in by backups, time machine, or anywhere else. It is also not in my account after I sign in. I have spent nearly 10 hours trying to figure this out. I have read all your articles and went through the steps of about:profiles. ALL my bookmarks should have been synced and saved. I have firefox in my Time-machine backup also. But none of the library files populates the bookmarks.

It would be a huge harm to my research career if I am unable to restore my bookmarks. I have trusted and used Firefox for a long time. Please assist me in obtaining these bookmarks in my browser.

Best,

Asked by AniTamar 11 months ago

Answered by cor-el 11 months ago

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Runaway process "plugin-container.app" is usurping system resources

My M-1 MacBook Pro has been running warm since I installed Firefox 116.0.3 (64-bit). EtreCheck Pro reports that "plug-in container.app" is a runaway process. When I sho… (read more)

My M-1 MacBook Pro has been running warm since I installed Firefox 116.0.3 (64-bit).

EtreCheck Pro reports that "plug-in container.app" is a runaway process.

When I show package contents for Firefox, I can see "plug-in container.app" in the MacOS folder.

Will there be an update soon to correct this problem? Firefox is my primary browser. I work in the SaaS industry and have to run a browser 24/7.

Asked by nbcarroll 10 months ago

Answered by nbcarroll 10 months ago

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New York Times Articles Won't Load

New York times articles briefly load and then disappear on one iMac. I think it is associated with the fact that the New York Times ads are missing or haven't loaded on t… (read more)

New York times articles briefly load and then disappear on one iMac. I think it is associated with the fact that the New York Times ads are missing or haven't loaded on that iMac. On our other iMac, New York Times articles load fine and the ads are present. I've looked in the Firefox settings on both and can't find any significant differences differences that would create this problem.

Asked by ed121 10 months ago

Answered by chris_mtl 10 months ago

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Can I keep two sets of mobile bookmarks seperate when syncing?

I know the answer to this is probably going to be along the lines of this is not possible, but I thought I'd ask anyway since none of the information is entirely clear. O… (read more)

I know the answer to this is probably going to be along the lines of this is not possible, but I thought I'd ask anyway since none of the information is entirely clear. Or answers my exact question.

I have one desktop install of firefox and I have two android ones. I have all three synced to one firefox account, so it's easy to grab links I saved while wiki diving on something. While this works perfectly for the desktop side of things, the mobile side is where the issue arises.

Currently all my bookmarks from both mobile firefox accounts are merged into one long set, regardless of device. While the desktop ones have their own folder. Is there a way to keep the bookmarks from each device in their own separate folder? Like say instead of having one big mobile bookmarks folder, having one named DeviceX, and the other DeviceY?

It's still semi functional on desktop where I have more screen real estate and have to deliberately go to the mobile bookmarks folder, but on the phones it can be confusing when a set of bookmarks from device 1 mixes randomly into those of device 2. As it can become a lot harder to keep track of things.

Now I know one can turn off syncing of bookmarks. This is not what I'm looking for as I do still want to be able to share them between all three devices. Just have them more organised.

I also know one can make different accounts for say work or personal, but again I want them all to sync, just not mix them into one list.

So in short is there a way to be able to have two android devices into a threeway sync and keep the bookmarks separate? Or is my only option the round abound way of making subfolders and hope I remember to save in those?

Thanks either way.

Asked by Elyndra 10 months ago

Answered by jscher2000 - Support Volunteer 10 months ago

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Firefox suddenly is slower than ever and been using for decades

Hi, I was a former IT person for decades and used Firefox because I love it. But lately, it isn't usable for me. Seemingly happened out of nowhere within the past few we… (read more)

Hi,

I was a former IT person for decades and used Firefox because I love it. But lately, it isn't usable for me. Seemingly happened out of nowhere within the past few weeks.

I tried all the troubleshooting steps in the guides on your support forum, but nothing worked. So I tried the following:

1. Uninstalled Firefox using Windows Uninstaller 2. Deleted every single Mozilla folder from within the user profile to the program files folders, local roaming folders, etc. - EVERYTHING. 3. Went into the Windows Registry and also deleted Mozilla folders within the local machine and current user folders. 4. Rebooted computer 5. Went to Getfirefox.com and reinstalled Firefox. 6. Logged into a brand spanking new Firefox installation

Still SLOW as molasses. Frustrating. I can't work. It is literally 4x slower than any other browser now. I use Firefox for 90% of my web stuff, the other browsers 10% of the time for testing. But as it goes now, I cannot use Firefox anymore after decades of using it.

Anything else I can try? Maybe I missed something when I scrubbed it and reinstalled? Why suddenly is it this slow? Any ideas?

I will try next to log into a different Windows profile I guess and see if that improves it. Maybe my Windows profile is jacked up, although, I thought removing all Mozilla folders from within my Windows profile would be enough, so I am not so sure that will fix it. I will try though.

Any help you can provide would be much appreciated.

Thanks,

Mark

Asked by markob17 11 months ago

Answered by markob17 11 months ago

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Equations not rendering in markdown book

In this website, written in markdown if I'm getting this right, the equations are not displaying in my browser. My browser is displaying corretly all the examples in th… (read more)

In this website, written in markdown if I'm getting this right, the equations are not displaying in my browser.

My browser is displaying corretly all the examples in the other questions on math rendering, and also in similar books (here, here).

I've deleted cookies and cache, disabled extentions/adblocker, tried safe mode, without any change.

I have the same problem with all Edge and Chrome too and even on another computer. I thought the problem was in the website but the equations are rendering fine when I test them on https://www.browserling.com/.

Thanks in advance for any help :D

Asked by youssef.salib 10 months ago

Answered by zeroknight 10 months ago

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Weird symbols

I am using Windows 11 and Firefox 116.0.3. Some characters like ‘ ’ “ ” — become weird symbols in Firefox when I copy and paste text containing them to html source text … (read more)

I am using Windows 11 and Firefox 116.0.3. Some characters like ‘ ’ “ ” — become weird symbols in Firefox when I copy and paste text containing them to html source text file. This started happening earlier this month, never happened before. Why is this happening now?

Asked by the.pelican.web 10 months ago

Answered by the.pelican.web 10 months ago

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Download Window Closes Immediately and Some Buttons Don't Work - Need Help

Hello, Firefox friends! I'm having some issues with Firefox on my Ubuntu system and I'm really hoping someone can help me fix them. Problem with Downloads: When I tr… (read more)

Hello, Firefox friends!

I'm having some issues with Firefox on my Ubuntu system and I'm really hoping someone can help me fix them.

   Problem with Downloads: When I try to download something and click on a link, a new tab opens. But then it immediately closes and nothing downloads.
   Button Issues: Some buttons within Firefox just don't seem to work.

I've tried a few things already:

   Checked for Firefox and Ubuntu updates
   Ran Firefox in Troubleshoot Mode
   No antivirus because I'm on Ubuntu

If anyone has faced similar issues or knows how to fix this, please help!

Thank you so much!

Asked by damianczap 10 months ago

Answered by zeroknight 10 months ago

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firefox hangs when searching on google or connecting to websites.

I have tried to disable hardware acceleration, refresh firefox, reinstall, and nothing works. It hangs every single time when searching on google or connecting to website… (read more)

I have tried to disable hardware acceleration, refresh firefox, reinstall, and nothing works. It hangs every single time when searching on google or connecting to websites. This really sucks because I have used firefox since the beginning and don't want to have to stop now..

Asked by coreyhooe 11 months ago

Answered by coreyhooe 11 months ago