Firefox Community Forum

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

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

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!

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.

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!

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 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.