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Firefox prefers IPv4 address in a dual-stack environment

Hi, I'm using IPv4 as well as IPv6 addresses in my home network. But Firefox uses always the IPv4 connection when I open a website. When I open the same website in MS Ed… (funda kabanzi)

Hi,

I'm using IPv4 as well as IPv6 addresses in my home network. But Firefox uses always the IPv4 connection when I open a website. When I open the same website in MS Edge, the IPv6 connection is used.

I've captured the network traffic during opening a website in Firefox, which is reachable over IPv4 and IPv6. First I see two DNS queries (A and AAAA) for the domain name. Both responses containing the correct IP address, and they arrive nearly at the same time at the client. Next I can see the TCP handshake. But it's send between the IPv4 address only. No IPv6 connection was attempted.

When I run the IPv6 test at https://test-ipv6.com, the IPv6 resuls are nearly fine. Only the web browser test says "Your browser has real working IPv6 address - but is avoiding using it."

When I run the same test in MS Edge, all tests are fine.

So it seems that this is not a OS or network issue. It affects Firefox only.

What I've already tried:

  • Disabled all extensions
  • Created a new profile
  • Used the IPv6 address of the website instead of the FQDN -> Works fine.
  • Checked DNS cache of Firefox (about:networking). It contains the IPv4 and IPv6 addresses of the requested websites

I guess that Firefox prefers the A record for some reason. But I've no idea why. Has anybody an idea what could causing this?

Thanks.

Jas Man

Asked by JasMan 2 iminyaka edlule

Answered by JasMan 2 iminyaka edlule

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plugshare.com page is missing couple of crucial menu icons

When plugshare.com loads, there is a prominent search box at the top left corner. However it is missing the menu icon (see attached pic) as well as the search icon. This … (funda kabanzi)

When plugshare.com loads, there is a prominent search box at the top left corner. However it is missing the menu icon (see attached pic) as well as the search icon. This is happening on 2 different machines running Ubuntu 22.04.

Please fix. Google Chrome displays just fine; see attached pic.

Asked by groundie 2 iminyaka edlule

Answered by cor-el 2 iminyaka edlule

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PDF Emails Blank

Hello, I have a colleague that whenever she emails me a PDF she edited in Firefox and I open it in Edge, Chrome or Adobe it shows up blank even though she has made change… (funda kabanzi)

Hello, I have a colleague that whenever she emails me a PDF she edited in Firefox and I open it in Edge, Chrome or Adobe it shows up blank even though she has made changes. Is there a setting she needs to adjust?

Thank you F. R.

Asked by SuMo Bot 2 iminyaka edlule

Last reply by SuMo Bot 2 iminyaka edlule

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Lost work in browser

Firefox update required me to restart Firefox. I was unable to save a bunch of work I had done in a particular tab because Firefox seems to have refused to connect to the… (funda kabanzi)

Firefox update required me to restart Firefox. I was unable to save a bunch of work I had done in a particular tab because Firefox seems to have refused to connect to the site I was working at until I update. THAT SUCKS!

Asked by Hugh 2 iminyaka edlule

Answered by cor-el 2 iminyaka edlule

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Unable to login to the ASUS router

Good morning, after today's FF update, it is not possible to login to the ASUS router (https://router.asus.com/). Yesterday everything was working fine before the update… (funda kabanzi)

Good morning, after today's FF update, it is not possible to login to the ASUS router (https://router.asus.com/). Yesterday everything was working fine before the update.

1. Does not work in private mode 2. Clearing the cookies did nothing. 3. You can log into the router in Chrome. 4. I don't have plugins installed.

FF v.104, Win10Prof

Any ideas? Regards.

Asked by SuMo Bot 2 iminyaka edlule

Last reply by cor-el 2 iminyaka edlule

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Proxy Settings are Greyed Out

I have been attempting to remove the block over my proxy settings. I have disabled VPN, removed Z-Scaler and even uninstalled and refreshed Firefox itself Any help is w… (funda kabanzi)

I have been attempting to remove the block over my proxy settings. I have disabled VPN, removed Z-Scaler and even uninstalled and refreshed Firefox itself

Any help is welcome

Asked by SuMo Bot 2 iminyaka edlule

Last reply by cor-el 2 iminyaka edlule

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Trojan detected in favicons.sqlite-shm

A Trojan was detected in favicons.sqlite-shm by BitDefender, the report said it blocked it (see screen-cap). Soon after, I wasn't able to load Firefox, Opera Browser and … (funda kabanzi)

A Trojan was detected in favicons.sqlite-shm by BitDefender, the report said it blocked it (see screen-cap). Soon after, I wasn't able to load Firefox, Opera Browser and Thunderbird. Tying to access them would start a popup dialog box stating that"Firefox is already running" and I'd would be asked to either cancel or stop. Pressing either option wouldn't allow access to Firefox etc., I had my computer scanned professionally and was told they didn't think the Trojan was still active and they managed to restore access to Firefox and Thunderbird, this took 2 hours.

I remain unconvinced my computer is free of the Trojan for various issues, including a corrupted winload.efi file (I have already attempted and failed to fix this) that won't allow Windows Defender to scan in Offline mode. Various other issues such a slow applications and occasionally flickering screen suggests the Trojan might still be active.

I'd greatly appreciate if anyone has information or experience dealing with particular issue.

Scans such as, Kaspersky, Malwarebytes, Bitdefender, etc. have been run and found nothing.

Asked by SuMo Bot 2 iminyaka edlule

Last reply by cor-el 2 iminyaka edlule

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Firefox not supported by financial institutions on Mac?

I learned the hard way about a month ago that my main bank will not work with firefox. I've now received notices from two other banks that state they only support safari … (funda kabanzi)

I learned the hard way about a month ago that my main bank will not work with firefox. I've now received notices from two other banks that state they only support safari on Mac. I have run into issues with some others that will either give errors but still allow me to pass through or others that state I have an unsupported browser but still allow me to log into the site - for now.

With this wide a net, this seems to be specific to the security issues in the Mac browser. Is this already being looked into? Is this specific to the new OS and firefox integration?

While I basically trust Safari, I certainly don't want to use it unless I have to and I generally use firefox exclusively on all my Macs and PCs. Can someone shine a light on this? Is there an upgrade or update planned?

Thanks

Asked by SuMo Bot 2 iminyaka edlule

Last reply by Paul 2 iminyaka edlule

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Video on certain sites stops working after about an hour of Firefox usage

Hello, For two firefox updates, I've been having an issue where after about an hour or two of using firefox (it varies), video players on most websites will stop working… (funda kabanzi)

Hello,

For two firefox updates, I've been having an issue where after about an hour or two of using firefox (it varies), video players on most websites will stop working. Almost every website except for Youtube's videoplayer stops working after an hour, all at once. Restarting firefox fixes it, but it's very annoying to restart firefox every couple of hours, and seems like a problem.

The following things didn't fix it: clearing my cache, disabling my addons one by one, turning off hardware acceleration, trying to watch the video in a private window, or reinstalling firefox. I don't know what's left to try. It has nothing to do with my audio devices.

Please advise, thank you!

Asked by Magpie 2 iminyaka edlule

Answered by cor-el 2 iminyaka edlule

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Auto-rotation

This is a recent change -- the desktop browser didn't do this until a few weeks ago. It now plays slideshows automatically. This feature is called Auto-Rotation, but it… (funda kabanzi)

This is a recent change -- the desktop browser didn't do this until a few weeks ago. It now plays slideshows automatically. This feature is called Auto-Rotation, but it has nothing to do with rotating the display on a phone or tablet (although that feature has the same name). This feature automatically rotates among the slides in a slideshow. It's incredibly annoying, especially since I typically forget its on (or don't realize I'm looking at a slideshow) and it changes to the 2nd slide just as I have begun reading the 1st. I then have to turn Auto-Rotation off and go back to the 1st slide to continue. When I remember, I have to hurry to turn Auto-Rotation off before it moves to the 2nd slide. Is there any way to turn this off? I can't find one by looking through Settings, and there's nothing on this subject in Help, that I can find. For what it's worth, whoever thought this was a good idea was wrong, but if there's a way to change so it's not the default, I'll be content.

Asked by gmsherry 2 iminyaka edlule

Answered by Terry 2 iminyaka edlule

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Error 400 - Bad Request The request could not be understood by server due to malformed syntax.

For the past 8-10 days, every time I try to log-on to: https://selfservice.telkom.co.za/rococo/public/content/interstitial I click "Login" under the Mobile & Home hea… (funda kabanzi)

For the past 8-10 days, every time I try to log-on to: https://selfservice.telkom.co.za/rococo/public/content/interstitial I click "Login" under the Mobile & Home heading and I receive the following message returned.

Bad Request The request could not be understood by server due to malformed syntax.

I have used MS EDGE browser and do not get the same problem, it log's-on OK.

As such it seems that it is a Firefox problem.

Asked by Brian E 2 iminyaka edlule

Answered by cor-el 2 iminyaka edlule

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How do I lock bookmarks on the bookmark tool bar?

I'm a gamer and alt+tab considerably often. Most of the time I end up on FireFox because I need to look at a map or browse reddit while I'm in queue. However, whenever I … (funda kabanzi)

I'm a gamer and alt+tab considerably often. Most of the time I end up on FireFox because I need to look at a map or browse reddit while I'm in queue. However, whenever I alt+tab frequently a bookmark will get selected as if I am clicking and dragging. The bookmarks on the bookmark tool bar always end up in different places. Is there a way to lock these links in place so I can't move them or do I have to resign myself to fixing it every day?

Asked by Vileynye 2 iminyaka edlule

Answered by Vileynye 2 iminyaka edlule

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end of file errors for google and facebook

www.google.com. PR_END_OF_FILE_ERROR www.facebook.com. PR_END_OF_FILE_ERROR Hi, This occurred after a moment of power loss during a thunderstorm on my Lenovo desktop.… (funda kabanzi)

www.google.com. PR_END_OF_FILE_ERROR www.facebook.com. PR_END_OF_FILE_ERROR Hi, This occurred after a moment of power loss during a thunderstorm on my Lenovo desktop. All my other sites as far as i can tell are ok. I used Edge and was able to access FB and Google on Desktop] i checked and the current version of firefox is installed on desktop

even weirder, i can access both google and FB on my laptop with firefox. I've tried syncing the two with having bookmarks etc. i can sync from laptop to desktop but not vise versa.

i thought I'd uninstall and reinstall firefox but i don't want to lose any info esp my Bookmarks on the Desktop hence why i was trying to sync the two.

My desktop is older, maybe 5-6 years, my laptop is 1 year old. Dunno if this matters. thanks, Jan

Asked by jansch135 2 iminyaka edlule

Answered by cor-el 2 iminyaka edlule

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Windows font sizes and contrast

Hi all, Recently, my win 10 crashed and although I managed to recover some operative, I found to my horror that the desktop screen text size and contrast cannot be chang… (funda kabanzi)

Hi all,

Recently, my win 10 crashed and although I managed to recover some operative, I found to my horror that the desktop screen text size and contrast cannot be changed now. The current default setup is a real eye sorer, so I opened personalization settings but there is nothing on how to change this very theme, other than other posts suggesting entering the regedit system files. I am very reluctant to tinker with this given the Win10 application crashes. Running maintenance doesn´t do much. I notice that Firefox also has access to this very text size and font theme for web domains, but I am very wary again of tinkering an unknown. What the heck can one do, confidently without the system resetting itself? One thing is for sure, it seems Win10 home edition update 21H1/2 versions is basically treating users very badly, as if MS wants to ignore them. Bless us all when the embedded caption suggests "ready to update to Win11". I´m highly inclined to bin it.

Asked by richwalters 2 iminyaka edlule

Answered by jscher2000 - Support Volunteer 2 iminyaka edlule

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when I try to download the QU210Installfiles.exe FireFox adds a .jpg to it making it QU210InstallFiles.exe.jpg

FireFox keeps putting a .jpg at the end of any file I try to download with .exe as its extension and adds a .jpg, example, when I download QU210InstallFiles.exe it change… (funda kabanzi)

FireFox keeps putting a .jpg at the end of any file I try to download with .exe as its extension and adds a .jpg, example, when I download QU210InstallFiles.exe it changes it to QU210InstallFiles.exe.jpg and I cannot there for install the program because it has the .jpg added to it and it wants to open in windows media viewer instead. It never use to do this, what have you guys done....uuhhhh, any help would be nice and I thank you. Daniel Goggia

Asked by danielos2 2 iminyaka edlule

Answered by danielos2 2 iminyaka edlule

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When I update my website they can't be seen by the public. When I press the update button I get a message saying it can't update as another website has embedded it. What can be done to rectify this problem please?

When I update my website, It is unable to make the update public as the message that comes up tells me another website has embedded mine. How do I rectify this problem pl… (funda kabanzi)

When I update my website, It is unable to make the update public as the message that comes up tells me another website has embedded mine. How do I rectify this problem please?

Asked by SuMo Bot 2 iminyaka edlule

Last reply by cor-el 2 iminyaka edlule

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My malware app is reporting a Trojan.YZST.9002 loaded from Firefox executables

My System Mechanic malware search system has quarantined a virus located in two Firefox locations: Virus is W32/Trojan.YZST-9002 LOCATE IN: C:/PROGRAM FILES/MOZILLA FIREF… (funda kabanzi)

My System Mechanic malware search system has quarantined a virus located in two Firefox locations: Virus is W32/Trojan.YZST-9002 LOCATE IN: C:/PROGRAM FILES/MOZILLA FIREFOX/UNINSTALL/HELPER.EXE C:/PROGRAMFILES/MOZILLA FIREFOX/MAINTENANCE SERVICES_UNINSTALL... I will use the delete process and remove them and watch for future loads.

Asked by Jim 2 iminyaka edlule

Answered by Jim 2 iminyaka edlule

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Google search page

All of a sudden on my Google search page there are "tiles" underneath, and no way I can figure out to get rid of them. There are boxes for weather, "what to watch", "tre… (funda kabanzi)

All of a sudden on my Google search page there are "tiles" underneath, and no way I can figure out to get rid of them. There are boxes for weather, "what to watch", "trending", etc. I HATE them!! I've attached a screenshot. And, going into settings for Google leads me nowhere... Feel like this is a Firefox thing.

Any idea how to make my Google page (I used it as homepage) clean again??

Asked by SuMo Bot 2 iminyaka edlule

Last reply by SuMo Bot 2 iminyaka edlule

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How can I stop the purple Tracker Information pop-ups that appear every time I open a new webpage?

Hi, Since recent updates to Firefox I get a purple pop-up listing Trackers at the bottom right of my screen every time I open a new webpage. I'm happy with my PC securi… (funda kabanzi)

Hi,

Since recent updates to Firefox I get a purple pop-up listing Trackers at the bottom right of my screen every time I open a new webpage. I'm happy with my PC security settings and have good protection software running - but this pop-up listing Trackers is becoming a nuisance.

Is there a way to stop Firefox displaying the Tracker notification pop-ups whilst still intercepting and blocking them in accordance with my security settings?

I see that other users have asked the same question, but it does not seem to have been answered yet.

Thanks,

Peter

Asked by PeterKinloch 2 iminyaka edlule

Answered by PeterKinloch 2 iminyaka edlule

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Why do cookies persist after clicking "Clear Data"?

Hi Mozilla community, The Developer Tools -> Storage -> Cookies pane shows cookies currently being stored by Firefox. If I close my browser, these cookies are au… (funda kabanzi)

Hi Mozilla community,

The Developer Tools -> Storage -> Cookies pane shows cookies currently being stored by Firefox.

If I close my browser, these cookies are automatically deleted. However, if I follow the steps on [1], the cookies are still there, and don't get deleted. *Why?*

Thanks in advance!

Steps to reproduce:

- Start a new Firefox session
- Open Developer Tools -> Storage -> Cookies and see that the list is empty
- Go to youtube.com and click Accept All on the cookies popup
- Developer Tools -> Storage -> Cookies now shows a cookie from YouTube, as per the attached screenshot
- Go to Settings->Privacy & Security->Cookies and Site Data -> Clear Data -> Clear
- Go back to Developer Tools -> Storage -> Cookies and click on the refresh icon
- The YouTube cookie is still there
- However either of the following actions will correctly delete this cookie:

1) closing firefox (with Always Use Private Browsing Mode enabled) 2) manually deleting the cookie from the list in Developer Tools -> Storage -> Cookies


[1] https://support.mozilla.org/en-US/kb/clear-cookies-and-site-data-firefox

Asked by tomchopin 2 iminyaka edlule

Answered by cor-el 2 iminyaka edlule