Firefox Support Forum

Hello!

I recently got a new PC, and every time I open up Firefox it instantly closes. I have tried downloading it on the Microsoft Store, it seems to work fine for 5 minutes and then it happens again.

Why does the Mozilla Firefox snap for Ubuntu keep changing the value of browser.opaqueResponseBlocking away from the default and selected FALSE setting to TRUE? This makes Firefox nearly unusable since the streaming video keeps being cut off when Mozilla Firefox snap for Ubuntu keeps changing the value of browser.opaqueResponseBlocking randomly during use. Specifically this is the 116.0.2 (64-bit) Mozilla Firefox snap for Ubuntu canonical-002 - 1.0 that is installed with Ubuntu 23.04. Please advise.

I am using Moziall Firefox 64-bit with version 107.0 on Windows 10 21H2. I always like to scroll web pages with the mouse scroll wheel by clicking the mouse wheel and then moving the mouse up and down. I think you know this function. Normally a small circle with an up and down arrow appears, but not anymore. In other programs like Outlook, Word or Edge it still works.

For troubleshooting I have already deactivated all addons and started Firefox in safe mode. Unfortunately, everything has brought nothing.

Translated with www.DeepL.com/Translator (free version)

FF keeps replacing

http://mysite.domain.net:3344 with httpS://mysite.domain.net:3344

whatever I try to fix this behavior. Thing is that I own this server and there ever was't any SSL implemented. I mean this - never.

Other browsers (Chromium, Chrome, Opera) don't take such a forcing action, website opens like a charm. Why FF thinks it knows better which URL I really want to open?

I already googled _a lot_ in order to find solution, but no one worked.

Setup: Debian 11 Mate no proxy and no separate "internet security" stuff on laptop (other browsers with default settings confirm that) FF 102.11.0 ESR 64 no addons (all switched off)

already tried: browser.urlbar.autoFill false browser.cache.check_doc_frequency 1 network.stricttransportsecurity.preloadlist false browser.fixup.fallback-to-https false dom.security.https_first false

What else I could do to stop this madness? Thank you in advance for any help

Clicking on the spacebar, does not produce a space between words, when typing text. I'm using a Mac Mini M1, on macOS Monterey (V 12.4), along with a Logitech MX Keys for Mac keyboard.

This happens randomly, for instance, on this very message. I previously posted a question regarding another problem that I came across with the same hardware and Firefox.

I found the solution to that problem by disabling an Extension in Firefox, however, I can't begin to think where to look for what setting, that may be causing my current problem.

I recently upgraded graphics cards from an Nvidia GTX 1080 to an AMD 6900XT. Since then I noticed video stuttering on YouTube while playing 4k videos, especially noticeable at 4k/60FPS (example video ). Prior to the upgrade, I was not experiencing issues.

I monitored task manager as the video was playing to see CPU usage, which was sitting at 25% (4 core 8 thread CPU). GPU usage was fluctuating from 1-3%.

I tried resetting all the changed configuration options in about:config, removing all add-ons, "Refreshing" Firefox, and ultimately uninstalling and reinstalling. Nothing has worked so far except for "Troubleshooting mode" in about:support. In that mode, I experience no stuttering and GPU usage rises to 25-35% with the video playing, even before I reinstalled.

This most likely isn't a networking issue as the "Stats for nerds" option on the YouTube video shows I have 10-20s of buffer while the video is still stuttering.

I would like to find out what's different about Troubleshooting Mode that is not giving me the same problem while in "Normal Mode". Any advice?

The mouse-left click button does not work since last two updates!

The link is OK, floating menu with right click can open it in new tab, but left-click on buttons, divs, links is dead for a while

Something was changed in Firefox in the wrong direction.

Please help

Using Windows 11. I'm using a free Proton VPN. My Firefox version is 103.02. I want to be able to continue to use the VPN when using Firefox to check my gmail accounts. If I disconnect the VPN, Firefox lets me access my mail site without a problem. When I use the VPN connected, I'm getting a PR_END_OF_FILE_ERROR

Is there a way to keep the VPN on and connect with no error? Is there a Firefox setting I can change? I don't have proxy selected in Win 11 connections. Cache is cleared.

I upgraded Firefox to 109.0 on OpenSUSE Linux today as an update. Firefox no longer plays videos. Chrome is still playing the videos, so the codecs are on my machine. Is there anything I can do to fix this?

The tab keeps crashing:

bp-6ab50b7b-01af-46cd-a55d-313f70221019

Tried new install, troubleshoot mode and deleting cache. Issue persists. What else can I do?

Hey! I can't Download any photo from right-click and => Save file as... When I press "Save file as..." there's no ant event or something, It's like Button but with out any action.

I use Ubuntu "Ubuntu 22.04.1 LTS" Firefox version 107.0.1

I need help please...

Hello Volunteers,

Ubuntu crashes while moving around a Firefox tab with a mouse, IF the mouse cursor goes thru the top bar of the laptop screen. I am using Firefox V 113.0.2, Build ID: 20230522193126 on Ubuntu 23.04. This could be an Ubuntu problem or a Firefox problem.

Thanks Dilip Deodhar

When typing comments on a web blog, after the spacebar is used, the first letter of the next word eliminates the previously typed space. So what I end up with is all words in a sentence running together. Tried other browsers and they work fine. Changed keyboard as well no joy. Typing is normal in applications like adobe, word, etc..... Only happens during Firefox use......... Uninstalled and reinstalled Firefox, also no help..... How do I fix ?

Hello, I am a user on Mac! I am having an issue with moving tabs fluidly. Yes, moving tabs inside the window is easy but when I move them outside the window, it makes me a little uncomfortable. In the images and video I have sent, you can see that an unnecessary thumbnail of the tab pops up even when I move the tabs inside the window. This makes it harder to know if I am even moving the tab in the first place. Then it takes like 2-5 seconds for the new window of the individual tab I moved to appear. If whatever I said is quite confusing which I apologize for, I would very much recommend taking a look at Google Chrome, the browser I don't prefer, however, try moving the tabs around and outside one window and creating more windows with individual tabs. It feels more fluid or swift and easy to handle. Compare that to Firefox and a big difference is to be seen. I am concerned about this issue really because I am replacing my previous browsers, not only Google Chrome but browsers like Edge too which are capable of not having that issue, with Firefox instead and hopefully Firefox can have this capability. I also multitask a lot so I usually encounter this problem on Firefox. I hope this is fixed and am sure it will help a lot of users! Thank you! Here is a YouTube video link for to provide a further understanding of the issue: https://youtu.be/jRuBDH32hPI

YouTube all of a sudden started to slow down and only be able to load videos fast enough in 360p resolution, I tried watching YouTube on Microsoft edge and YouTube handled 1080p easily there, I have cleared the cash and made sure my Firefox and Windows are up to date and still the issue persists.

this only seams to occur on YouTube as amazon prime and speed test works without issues

How do I remove the scam pop-up that won't let me access firefox on my iphone? The pop-up says "your apple iphone is severely damaged." I can't open a new tab or delete the current tab.

Hey folks,

i am facing issue with high CPU usage on firefox in completely different process other as visible in task manager than my actual process for firefox. is there something wrong with firefox or my system.

This separate process uses more than 60% of my CPU (AMD Ryzen 5 4600). If I close that process in the task manager nothing happens to my current firefox process and i can use firefox normally.

But everytime this separate process starts my system fans ramp up and CPU temps peaks to 70 degrees celsius. and i have to end that process to make it run normally. Thats a quite annoying process to do every time.

I am able to recreate this separate process by:

1. 1. Plug my system for charging
2. 2. I was working offline and connect to internet

both the times the separate process automatically starts and uses very high amount of CPU. I even left my system for 2 hours to keep that process running and complete whatever it was doing. but nothing happend. It continued to run for 2 hours also.

Please find a solution for this. I have already tried solutions provided in the forum:

• Restarting firefox
• Refreshing Firefox
• Enabling hardware accleration
• Clearing some user profile data
• Completely uninstalling firefox and deleting the residual files then reinstalling etc.

but nothing worked.

When using Google Sheets in Firefox, it's impossible to access the Sheets menu shortcuts (e.g. typing Alt+D+R+S to open the advanced sorting dialog) because Firefox captures the Alt keystroke and doesn't pass it to the web app.

Of course, Chrome passes the Alt keystroke to Sheets just fine so the keyboard shortcuts work as expected. But I don't want to use Chrome or any other Chromium browsers. Has anyone found a workaround to this issue? (Hint: don't say use chrome)

My ISP had provided the IPv6 service, edge/chrome/vivaldi are all IPv6 first and working well. Only firefox insists use IPv4, although it could also pass the IPv6 test on https://test-ipv6.com, and the internal test on https://detectportal.firefox.com/success.txt?ipv6 It leads to some webpage extremely slow, even could not be accessed.

I've tried privacy mode, but the problem is still there. IPv6 in about:config is enabled, all related options are default. Is this a bug, or if there is any way could fix it by some special settings?

Waiting for your help, thanks.