Firefox Community Forum

Hello everyone,

this here is a really odd problem and not one of the usual "firefox slow, internet bad" → "read the faq" problems as far as I can tell.

The problem: When using Firefox (110.0 64-bit Windows 10) I noticed already a while ago that downloads are slow, apparently frozen from time to time, websites took longer to load and looking at speed tests, I got really bad results. Furthermore, Firefox seems to slow down my internet speeds of the whole system, as I can observe in other applications which want to download or upload data. As long as Firefox is running (even if I am just in the default tab and doing nothing in Firefox) it slows the internet speed of the whole system down.

So I tried a plethora of things to fix this and I can rule out the following possible causes with high confidence:

• History, Cache, Add-Ons and so on: performed a clean re-install of Firefox, cleared all cache and history data, removed add-ons, reset to default, etc..
• ISP problem: performed repeated speedtests from other devices within the network, everything is fine within my local and wide area network, ISP does not report any problems
• Firewall & AV: turning on / off, even uninstalling, no effect observed
• Driver problem: driver updated, driver removed, used default Windows Driver, used Troubleshooter etc., nothing helped.
• OS issue: Nope. I even performed a clean new installation of Windows today, the problem remains. Furthermore: I ran the speedtests using Microsoft Edge and there are no issues (as long as Firefox is not running.)
• HW / System issue: Nopes again. I have used a live Ubuntu-image to cross-check whether the HW might be an issue, but running speedtests using Ubuntu and Firefox worked well.

I did not observe similar effects on other machines using Firefox under Windows in my network. So it seems to be a very specific problem within Firefox under Windows 10 on my machine.

By the way the machine: HP Pavilion Gaming - 15-dk0200ng CPU: Intel Core i5-9300H RAM: 16 GB DDR4-2666 SDRAM WiFi: Realtek RTL8822BE 802.11ac (via PCIe) (I also have an Ethernet chipset on this system, but since I have tested everything using only WiFi I'll omit the info here.)

So is this a bug of Firefox? Or am I missing something?

Attached are some screenshots of the disappointing test results using Firefox. (I have similar problems on other sites like speedtest.net or the speedtest of Google). As reference: I've got 500 Mbit/s downstream and 50 Mbit/s upstream. Usually these speeds are achieved from other devices (or other browsers on my system), or are at least within the top 80%. But what I get with Firefox is significantly worse. It's also strange that the speed goes up first, which is fine, but then falls down completely after reaching some point. A few seconds after that it goes up again, but much much slower.

Thanks in advance for any help!

I was previously able to connect to my local NAS using the server name, but now cannot. I verified that the server certificate error exception is still listed.

Here is the text of the error message I receive:

"Hmm. We’re having trouble finding that site. We can’t connect to the server at [server name redacted]. Did you mean to go to www.[server name redacted].com? If you entered the right address, you can:

   Try again later
   Check your network connection
   Check that Firefox has permission to access the web (you might be connected but behind a firewall)"

I am able to connect using the IP address.

How do we contact customer service with trouble shooting issues? It is unacceptable not to have a number to call or at least a chat function to talk to a live specialist

Hi there,

I have a question please :

I can check the candidate type ( webtrc ) in Edge with this simple command : edge://webtrc-logs

Can you please let me know how I can check it in Firefox. I`ve searched the web but I couldnt find the answer.

Thank you in advance.

Site: https://test-jwweb2.jwisgs.com:81/

Click on the Preferred Location dropdown with Firefox for Windows. You get the following.

Now do the same thing with Edge/Chrome on Windows or Firefox for Mac. You get this.

The font being used is Adobe ProximaNova-Reglar. Why is this happening and what can I do to fix it.

I have a requirement where instead of showing the 404 error or 503 error on screen, I want to display a blank screen. I have already tried to set the following configs to false -

security.insecure_connection_text.enabled security.insecure_connection_icon.enabled security.insecure_connection_text.pbmode.enabled browser.ssl_override_behavior security.ssl.errorReporting.automatic security.enterprise_roots.enabled security.tls.version.min

Is there anymore steps to do or any userChrome.css script is required.

PS : I cannot use any extension or addon to do that

A few versions ago, Firefox (Mac) changed behavior when clicking on a link in an outside program. Specifically, if Firefox is not running and I click a link in Outlook, Firefox opens the clicked link in a tab but also opens my homepage in a second tab. Since I'm only interested in the clicked link at this time I don't want it to open my home page, just the clicked link. This problem is exacerbated by my.yahoo.com which causes a switch from the tab containing the clicked link to the homepage tab.

How do I get Firefox to only open the link that I clicked and not my homepage in addition? This was the normal behavior until a few months ago.

Mac OS 11.7.4 Firefox 110.0.1

Thank you!

bold textFirefox has become a HUGE memory hog, and every update makes it worse. Would it be POSSIBLE for mozilla firefox to ACTUALLY listen? Instead of ASSUMING you already know EVERYTHING, pay attention to your users.........MOZILLA FIREFOX, WILL USE UP ALL MEMORY(IDLING). There are several THOUSANDS of posts stating that mozilla firefox is a HUGE memory HOG, and of course the people of firefox can NEVER be BOTHERED to listen to the public.

  That is the problem, we are left without the slightest bit of help or service when mozilla decides to intentionally ruin our PC's. And absolutely no one will believe us when it's been stated THOUSANDS of times that mozilla firefox uses up ALL memory(on the net).
   Please do something, we the public are getting FED-UP, with a corporation that "just can't be bothered to ever help anyone". Hint: the incessant updates do more to make the users angry, than "improve a browsing experience". I'm seeing 500mgs and 12 windows forced open just to idle firefox, and this is directly after the update.  email address: jimerb6@yahoo.com. Please explain away how it's all my fault, or my computer, or the net provider, this is wildly out of control. I await the least bit of offered help or service.

Hello there,

I've been having problems with using Firefox for a while. For context, I'm using a computer given to me by my college because my personal laptop gave up the ghost a while ago. It has a lot of security programs installed on it and I am obviously not allowed to mess with those at all, as my account doesn't have the permissions. Here are some of the problems I've been having:

• always signed out of my firefox account on relaunch (no options enabled that would cause this)
• always logged out of specific websites on relaunch (primarily noticed with discord)
• addon windows never load
• addons don't work, even when enabled, and after uninstall and reinstalling

I've tried uninstalling and reinstalling Firefox also, but nothing seemed to fix these problems. The only thing that stopped happening was being signed out of my Firefox account on relaunch but I have no idea what was causing it or what stopped it.

Now, in an attempt to fix the problems I was having with addons, I refreshed my Firefox. So far I haven't done anything to it other than sign into my Firefox account. Upon trying to reinstall my addons, I got errors like this: "An unexpected error occurred during installation." and "UBlock Origin could not be installed because Firefox cannot modify the needed file." For reference, here's all the addons I had installed before I refreshed: Tranquility Reader, HTTPS Everywhere, Better TTV, Shinigami Eyes, UBlock Origin, Windscribe, Enhancer for Youtube, Dark Reader, and Bitwarden. I tried installing UBlock Origin, Enhancer for Youtube, and Bitwarden, and got the exact same errors every time. I'm really lost on what to do.

Can't install Firefox on new WIN 11 laptop. Every attempt leads to the Microsoft store which no longer has Firefox in it or to a dialog that says Firefox is not a Microsoft-certified app. I REALLY don't want to use Edge! Thanks in advance for your help. Steve [email removed from public]

I'm really not sure how something like this can happen but I have lost access to your products. My favorites, passwords, DuckDuckgo, background, and everything. I thought that once I signed into Firefox again all these saved items would come back but nothing has. It's like someone pushed a button and changed my world using all the products that you offer. I don't know how to retrieve these needed items and I'm hoping hard you can return my Mozilla world to me. I don't really understand how this could have happened but I'm hoping it wasn't something I did. I can't give you any hints that might explain how something like this could happen. When I tried to sign into firefox Microsoft Edge offered to provide the password but I don't want to go near their products. It seems when you go that way Microsoft will add a dozen things I don't want. I'd like to thank you for any and all help you can provide to me. Also thanks for your time. Most sincerely, Robert Auerbach

I've noticed that while on Wi-Fi, having Firefox open on any webpage will cause consistent ping spikes every 5 seconds, making online games unplayable.

I've tested this normally, tried disabling all extensions, and tried troubleshoot mode. Task manager does not show any changes with CPU/Memory/Disk/Network under Firefox's process when these ping spikes happen, but the issue goes away immediately every time after closing out Firefox.

The webpage and what you are doing on that webpage does not matter (like streaming YouTube), it even happens after visiting google.com. However, I'll rarely get lucky and this issue won't occur while Firefox is open.

Issue does not occur with other browsers. If there is any additional info that I should provide please let me know.

Please allow me to visit http://www.hbdc.ddns.net:8080 I've been able to watch the cameras for a few years. Thank you.

I currently use Chrome on Android & Chromebook as my main browser, but I would like to switch to using Firefox now across all my devices (linux, android, chromebook). To do this, I need to import my passwords from Chrome to Firefox, and have them sync between the Firefoxes on all of my devices, but it's not working. I have tried the following:

Method 1: I installed Chrome on my new Linux machine. Checked and made sure it had synced my passwords by logging into a website using Chrome. Then, on Firefox, I pressed alt to enable the toolbar, then File->Import from another browser. The pop-up says "No programs that contain bookmarks, history, or password data could be found."

Method 2: Chrome seems to have a feature to export the passwords to csv. So I exported the passwords from Chrome to a csv on Linux. To be thorough (because I am having trouble getting this to work), I used accounts.firefox.com to sign out the Firefox on my android phone and chromebook, then (on the phone) I deleted my browsing data, uninstalled firefox, and rebooted the phone. Back on Linux, I did about:config, then set signon.management.page.fileImport.enabled to true, then did about:logins then menu->"import from a file", selected the csv that I just exported from Chrome, and clicked Import. Import Complete, 332 logins added, 1 not added because it was missing a password. Logins successfully imported, hooray! For testing purposes, I create a unique new password entry, http://foo.com username "a" password "b". Then I go to about:preferences, make sure that syncing is on and I'm currently syncing logins and passwords, and press "sync now". Log in to my phone, install Firefox from the play store, start it up, sign in using my email and password (it says "syncing"), go to logins and passwords, click "saved logins". The only one listed is for foo.com, the fake one I created to test the syncing, but I expected to see all 333 there.

How do I get this to work?

Hi. I want to sync with my work pc (it used to work just fine but when I synced to a newer third pc- successfully- it just stopped). When i try to sign in on the work pc it asks me for the primary password which it then FAILS to recognise to allow me to proceed! What's going on? I can't even log onto sites with saved passwords anymore. Any help appreciated.