Showing questions tagged:

Firefox opens 17 operations for one window eating up memory and processing power

I have a Windows 10 Pro system and Firefox continues to open up at least 17 processes for one internet window. This eats up system resources for nothing more than general… (read more)

I have a Windows 10 Pro system and Firefox continues to open up at least 17 processes for one internet window. This eats up system resources for nothing more than general web browsing. How can these processes be limited? Thank you.

Open 1

Linux Ubuntu, Firefox 154.0, firefox freezes and I am unable to make it work or quit it.

This has been in the last month or so. It will freeze up and I can't break out of it. Last time it froze the whole computer and I had to power down and restart. The… (read more)

This has been in the last month or so. It will freeze up and I can't break out of it. Last time it froze the whole computer and I had to power down and restart. There must be something that changed. And there must be some way for me to be able to quit when this happens. Last time it was on a video call with my 104 year old mother and it is very annoying. The whole thing froze and I had to restart the computer and when I got it back up, she was off. I need some way to break out so I don't have to do a complete restart. t.

Open 9

Tabs randomly freeze/unresponsive after resuming from sleep (Windows 11)

Hi everyone, Since updating to Firefox 129 on Windows 11, some tabs become unresponsive after my laptop wakes from sleep — no crash, no "Not Responding" warning, just fro… (read more)

Hi everyone,

Since updating to Firefox 129 on Windows 11, some tabs become unresponsive after my laptop wakes from sleep — no crash, no "Not Responding" warning, just frozen. about:processes shows the tab still running with ~0% CPU, so it's not hung, just not repainting.

Tried: disabling hardware acceleration (helps a bit), fresh profile (still happens), Troubleshoot Mode (less frequent but not gone).

Anyone else seeing this? Known WebRender/compositor bug tied to sleep/resume, or a Windows 11 power management conflict?

Thanks!

Open 1

Firefox updated to 155.0.1 - now no Rt-Clk, no rearranging of tabs, and menu buttons across top of windows all inert. Win10 desktop. HELP!

My Desktop - Win10, 260+ Gigs RAM/14+ TB HD space Firefox updated a couple of days ago, and again today (this time to 155.0.1) Ever since . . . . . . Having Ma… (read more)

My Desktop - Win10, 260+ Gigs RAM/14+ TB HD space Firefox updated a couple of days ago, and again today (this time to 155.0.1) Ever since . . . . . . Having Major problems NOW No Rt-Clk function in Ff Ff menu buttons non-functional Ff tabs can no longer be rearranged Data entry fields, dropdowns, Submit buttons, & "add to cart" buttons not working on Ff pages -Things I've tried; I rebooted Ff & Windows several times each - No Joy I cleared Ff startup cache twice - No Joy HELP! I use Ffox for roughly 85% of my online activities - I'm pretty much hosed

PLEASE HELP!
Open 6

Scroll-down stops before the end of my index page's source code, preventing me from editing.

My summary says it all, really. There's not much more that I can add, except that I have used Firefox for many years and have never had this problem before. The index pag… (read more)

My summary says it all, really. There's not much more that I can add, except that I have used Firefox for many years and have never had this problem before. The index page itself is fine when I view it in Firefox. And if I right-click the page and view its source code, everything is there. Furthermore, I have no difficulty in editing the page in other browsers. (Since this problem arose, I have been using the Norton browser. But I have also been able to scroll down to the end of the source code in Google Chrome.)

Open 1

multiple 1-minute charts forcing my CPU/GPU to constantly render live data

I am running 10 or more tabs with tradevision.io showing real time stock charts running multiple 1-minute charts forcing my CPU/GPU to constantly render live data. Enabli… (read more)

I am running 10 or more tabs with tradevision.io showing real time stock charts running multiple 1-minute charts forcing my CPU/GPU to constantly render live data. Enabling Hardware Acceleration in your browser settings can help balance the load and keep things running cooler but it made no difference. Prices still freeze and I have to constantly refresh. The CPU is flat out and running hot - my laptop is a top of the range xps 16

Open 1

Web-based metronome sounds slightly out of sync in Firefox

I've been testing a browser-based metronome in Firefox and noticed that the audio click can sometimes feel slightly out of sync with the visual beat. It isn't a complete … (read more)

I've been testing a browser-based metronome in Firefox and noticed that the audio click can sometimes feel slightly out of sync with the visual beat. It isn't a complete audio failure—the metronome keeps running and produces sound—but the timing can feel a little delayed or inconsistent, especially when using it at faster BPMs. The site I'm testing with is TheTapTempo's online metronome. I'm trying to figure out whether this is related to Firefox's handling of web audio or whether the delay is more likely to come from the system/audio device. A few things I'm wondering about: • Could Firefox's Web Audio timing cause a small difference between the scheduled beat and when the sound is actually heard? • Could Bluetooth headphones make the problem more noticeable because of their audio latency? • Can Firefox extensions or hardware acceleration affect the timing of browser-based audio? • Is there a Firefox setting or diagnostic mode that would be useful for testing this? • Would comparing the same metronome in Firefox and another browser help determine whether the issue is Firefox-specific? I've also noticed that the perceived timing can depend on the audio output being used, so I'm not sure whether this should be treated as a Firefox issue or an audio-device latency issue. What's the best way to troubleshoot this in Firefox?

Open 1

Why does Firefox not fully load, causing me to entered data?

I am a home health nurse, and I use Firefox to enter my notes on my visits, but very often, I get a message when I try to save my work to Wait Until Page Finishes Loading… (read more)

I am a home health nurse, and I use Firefox to enter my notes on my visits, but very often, I get a message when I try to save my work to Wait Until Page Finishes Loading and I have to start over, makes me want to switch to another browser.

Open 1

Why is YouTube video playback choppy in Firefox for Android, and what settings can I change to fix it?

Please provide a clear, step-by-step troubleshooting solution specifically for Firefox for Android. Explain the possible causes of choppy YouTube playback and show me whi… (read more)

Please provide a clear, step-by-step troubleshooting solution specifically for Firefox for Android. Explain the possible causes of choppy YouTube playback and show me which Firefox settings to check or change, including hardware acceleration, extensions, video quality, cache, and performance settings. Please explain what to do at each step and how to test whether the problem has been fixed.

Open 1

Browser is unresponsive after update

My Firefox browser was updated to the most recent version (153.0). And since then, it will always freeze up within a few minutes of me opening it, even in troubleshooting… (read more)

My Firefox browser was updated to the most recent version (153.0). And since then, it will always freeze up within a few minutes of me opening it, even in troubleshooting mode. Even if I keep clicking, it’s still stuck and I’m forced to close it.

I did turn off hardware acceleration before, and it still doesn’t work.

Open 1

I found a workaround (hopefully) for flickering black artifacts on 154.0 update in Windows 11

Hello I have Firefox 154.0 on my 2 PCs that have Windows 11 and both computers are updated fully as of 22nd August 2026 with both Windows updates and Nvidia drivers. Back… (read more)

Hello

I have Firefox 154.0 on my 2 PCs that have Windows 11 and both computers are updated fully as of 22nd August 2026 with both Windows updates and Nvidia drivers.

Background: On my 2 PCs I have an "old" stationary PC with Geforce 1070 TI card, and I have a laptop Asus Vivobook 15 PRO with a Geforce GTX 4600 card. Both computers working fine and no issues so far.

Symptoms: I updated Firefox. Note! I always update Firefox on my computers, so it wasn't a clean install of the browser. And suddenly on both computers there were black artifacts all over screen and flickering when scrolling on Facebook or Youtube. Also even worse on sites were you drag a div and the browser turns into a 1-bit disco.

Workaround that seems to be working for me: I went to about:settings and searched for hardware on my laptop (the one with 4600 card) and searched for "hardware". Then I disabled the hardware acceleration thing, or whatever it was, but unchecking the result after search. Then I restarted my laptop not using hardware acceleration and it worked fine.

Then again I search about:settings for hardware and checked the bottom of the 2, not sure what the first one was. And restarted computer.

Now I don't have those black artifacts and flickering any more.

Not sure if that somehow triggered something that works for fresh installs or not.

Anyway... I can't submit a ticket since I can't reproduce the error it's no point submitting to Bugzilla. But hopefully this makes sense anyways... But I'm pretty sure you guys are aware of this issue already. But posting anyways in case it might help.

Open 3

Mozilla Firefox (not responding) making browser unusable

A week ago, Firefox started freezing and acting all glitchy. Troubleshooting said to uninstall and reinstall, which I did. That's when the real trouble began. It lost al… (read more)

A week ago, Firefox started freezing and acting all glitchy. Troubleshooting said to uninstall and reinstall, which I did. That's when the real trouble began. It lost all my data, pretty much signed me on as a brand-new user. Luckily, I was able to recover my data from my phone app, but it still did not work correctly. Nothing in the support pages was helpful, so I finally had ChatGPT assist. We got it restored using my recovery key and I though that everything was fixed. Then two days ago I got the 'not responding' thing happening every time I tried to reopen it, along with a generic Firefox web page opening randomly. I reopened it several times in troubleshooting mode, again, no help. So. uninstall, reinstall, uninstall, reinstall... you get the picture. I finally thought I had gotten it properly restored at 5:30 this morning with all my previous tabs showing up. But as soon as I tried to use it, the same old 'not responding' message. I always get the pop-up asking me if I want to close it or wait for it to respond, which it will eventually do, until I try to click on a tab. What the hell am I missing here? I've had Firefox for, oh, I don't know, 20 years or so. Never had problems.

Open 1

Tab reloads when I switch apps and reopen firefox on android

Everytime I switch app and come back to the browser, my tab reloads. So like if I am watching a youtube video and I've watched it almost half, after the reload it starts … (read more)

Everytime I switch app and come back to the browser, my tab reloads. So like if I am watching a youtube video and I've watched it almost half, after the reload it starts over.

I've uBlock origin and Hide Shorts extension installed.

Open 1