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firefox lagging due to high cpu usage

Hi all, I've been having problems with firefox lagging constantly. General browsing around feels laggy - and opening new tabs pretty much causes my computer to freeze for… (read more)

Hi all,

I've been having problems with firefox lagging constantly. General browsing around feels laggy - and opening new tabs pretty much causes my computer to freeze for a few seconds. During this time firefox causes the CPU to spike to 100% usage.

I've been using firefox for years on this computer with no issues. Hardware is pretty good (i7 5820k, 64GB of ram and an SSD).

So far I have tried:

  • Running in safe mode
  • Using a different profile
  • Downgrading to an older firefox
  • Changing allowed CPU cores from 8, to 4
  • Updated graphic card drivers to latest version

None of these work, and I'm getting a bit tired of the constant slow downs. Chrome works flawlessly, as does all my other software...

Any ideas?

Thanks!

Asked by agouranga 2 years ago

Answered by agouranga 2 years ago

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How to make scroll bar always visible and functional?

This page https://www.nacocanada.com/cpages/common-docs is broken and has a newsletter sign up overlay that can't be closed. So i hide the element with uBlock origin but… (read more)

This page https://www.nacocanada.com/cpages/common-docs is broken and has a newsletter sign up overlay that can't be closed. So i hide the element with uBlock origin but the underlying page still doesn't scroll. If i make the window taller more content appears, so it is there.

How do I force enable the scroll bar for all websites or at least this one?

Asked by codywohlers 1 year ago

Answered by cor-el 1 year ago

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Videos playing slow

Hello! On a certain adult website, all the videos play verrrry slooooly. YouTube videos play fine. And this certain site works fine when I try it with Chrome. I recently … (read more)

Hello! On a certain adult website, all the videos play verrrry slooooly. YouTube videos play fine. And this certain site works fine when I try it with Chrome. I recently added a bunch of adblockers like Ghostery and Adblocker plus and Badger and Decentraleyes and HTPPS Everywhere. Is the problem with one of these? What can I do to get the videos to play at full speed?

Thanks in advance!

John

Asked by yohejohn 1 year ago

Answered by FredMcD 1 year ago

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glitchy graphics and text

Hi all For a while now I've had a problem in Firefox where images randomly show up with green blocky glitches or yellow lines on them. Also sometimes text does not show c… (read more)

Hi all

For a while now I've had a problem in Firefox where images randomly show up with green blocky glitches or yellow lines on them. Also sometimes text does not show correctly. I've attached a couple of examples. The image is from my Facebook feed (but it can happen on any website it seems) and the text is open tabs - the one on the right is this page.

Any suggestions? I've refreshed the Firefox install, and have only one add-on - an ad blocker. I've tried two different ad-blocking add-ons and the problem persists with both.

Thanks

Asked by hooseyfloot 1 year ago

Answered by cor-el 1 year ago

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firefox opens off screen

On new laptop with Windows 10, with an external monitor in extended desktop mode, Firefox is opening partially off screen such that the top bar is inaccessible so I canno… (read more)

On new laptop with Windows 10, with an external monitor in extended desktop mode, Firefox is opening partially off screen such that the top bar is inaccessible so I cannot drag it back on screen. If I close it and reopen, it will usually be back on screen. How can I fix this?

Perhaps related: tabs are not reopened and Restore Previous Session does not work.

There are no extensions open.

Thank you for assistance.

Asked by David400 1 year ago

Answered by Colin M 1 year ago

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Twitter not loading in Firefox 89.0.1: failedScript=polyfills

I'm finding that Twitter is not loading in my desktop Firefox browser (89.0.1), and I'm getting the error "failedScript=polyfills". I do use an ad blocker, but it's turne… (read more)

I'm finding that Twitter is not loading in my desktop Firefox browser (89.0.1), and I'm getting the error "failedScript=polyfills". I do use an ad blocker, but it's turned off for Twitter, so I'm not sure how that could be the issue. I'm not having the same issue in Safari. Thanks for any help!

Asked by NoBird 1 year ago

Answered by cor-el 1 year ago

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streaming problems

hello. I currently have a problem not being able to stream films on netflix, amazon prime, disney plus using firefox browser. This issue happened overnight. Depending on … (read more)

hello.

I currently have a problem not being able to stream films on netflix, amazon prime, disney plus using firefox browser. This issue happened overnight. Depending on the site a certain error code message will pop up then the same yellow bar at the top says "the widevineCdm plugin has crashed..." i have reloaded the page, sent the report. uninstalled and installed firefox...but the issue continues. This happened roughtly 2 weeks ago and the problem hasnt resolved itself. Safari allows me to stream most sites barr disney plus. Can anyone help. I've tried many of the things google has suggested and it hasnt fixed the problem. I have tried chrome also, there seems to be the same issue. does anyone have suggestions

Asked by eshy_g 1 year ago

Answered by cor-el 1 year ago

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Automatically open the Downloads panel

In the new version, the Downloads panel automatically opens whenever I save/download a file. The problem... it STAYS open. How can I turn it off? I already know where and… (read more)

In the new version, the Downloads panel automatically opens whenever I save/download a file.

The problem... it STAYS open.

How can I turn it off? I already know where and how to check on my downloaded files. I do not need to see the downloads panel pop up every time I save a file. And I definitely do not need or want it to stay open, causing yet another need for a mouse click to make it go away.

Asked by tcd2000email 6 months ago

Answered by AliceWyman 6 months ago

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Firefox hangs Ubuntu 20.04

After installing Ubuntu 20.04 LTS Clicking on Firefox or Thunderbird it hangs the computer and have to switch off the computer on main switch. Reinstall Mozilla once but … (read more)

After installing Ubuntu 20.04 LTS Clicking on Firefox or Thunderbird it hangs the computer and have to switch off the computer on main switch. Reinstall Mozilla once but no difference still hangs Ubuntu. Need help on this one Thank you

Asked by Lumaja 1 year ago

Answered by schnrl 1 year ago

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large black boxes or lines are appearing and preventing me from entering text in varous programs’ for ‘Firefox’

large black boxes or lines are appearing and preventing me from entering text in various programs’ for ‘Firefox’ These are very large black "boxes" that also cause gmail… (read more)

large black boxes or lines are appearing and preventing me from entering text in various programs’ for ‘Firefox’

These are very large black "boxes" that also cause gmail to flick in and out from a large to a small display

Asked by Graeme 1 year ago

Answered by cor-el 1 year ago

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After downloading and starting Firefox, I get an error message that says "A copy of Firefox is already open. only one copy of Firefox can be open at a time." The thing is I don't have another copy open.

After downloading and starting Firefox, I get an error message that says "A copy of Firefox is already open. only one copy of Firefox can be open at a time." The thing is… (read more)

After downloading and starting Firefox, I get an error message that says "A copy of Firefox is already open. only one copy of Firefox can be open at a time." The thing is I don't have another copy running.

Asked by krich377 2 years ago

Answered by jscher2000 - Support Volunteer 2 years ago

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Prime Video: "Your browser does not support High-Definition playback due to content restrictions"

Since 88.0.1 all Amazon Prime Video content displays this message: "Your browser does not support High-Definition playback due to content restrictions. Please update your… (read more)

Since 88.0.1 all Amazon Prime Video content displays this message: "Your browser does not support High-Definition playback due to content restrictions. Please update your browser for the best Prime Video experience".

I've tried turning off vpn, adblocker, and set tracking protection back to 'standard', nothing helps.

I'm on W10 1909 Home which is technically not supported by MS as from this week so I did consider that as a possible (but unlikely) reason for it. However, the content plays fine in MS Edge. The content also plays fine from a laptop running Chrome on 1909 Enterprise (similar build to mine albeit not out of support yet).

I see widevine was updated in 88.0.1 - could this be the issue?

Thanks

Asked by jrh 1 year ago

Answered by jrh 1 year ago

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DRM content won't play

After installing the DRM content through the browser I still cannot play any videos on Netflix or Udemy. I have run this website (https://www.jeffersonscher.com/sumo/htm… (read more)

After installing the DRM content through the browser I still cannot play any videos on Netflix or Udemy.

I have run this website (https://www.jeffersonscher.com/sumo/html5-video.html) from previous answers to check and the results are attached to the question.

I have also checked media.eme.enabled and it is set to true.

I am very much puzzled by this.

Asked by Alex 1 year ago

Answered by jonzn4SUSE 1 year ago

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Firefox fails to download any file, download immediately fails.

Hello Whenever I start a download, it immediately crashes, no matter what you do all downloads fail. Tried solutions that didn't work: refresh ff, delete profiles, un… (read more)

Hello Whenever I start a download, it immediately crashes, no matter what you do all downloads fail. Tried solutions that didn't work:

  • refresh ff,
  • delete profiles,
  • uninstall + reinstall.

Asked by JFM02FFP2NR 8 months ago

Answered by JFM02FFP2NR 8 months ago

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pulseaudio high CPU with no audio playing

Hey there, I have the following issue with Firefox, is this maybe something I should report to the Ubuntu support or directly to Bugzilla? Steps to reproduce: --- Open … (read more)

Hey there,

I have the following issue with Firefox, is this maybe something I should report to the Ubuntu support or directly to Bugzilla?

Steps to reproduce: ---

  1. Open Firefox
  2. Go to a page that contains an embedded video that is not playing automatically, e.g. https://www.rottentomatoes.com/m/sound_of_metal
  3. Do not play the video

Environment --- User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:83.0) Gecko/20100101 Firefox/83.0 Firefox version: 83.0 (64-bit) pulseaudio version: 13.99.2 OS: Ubuntu 20.10 64-bit Gnome version: 3.38.1 Windowing system: Wayland CPU: Intel® Core™ i7-8565U CPU @ 1.80GHz × 8 RAM: 15,5 GiB GPU: Mesa Intel® UHD Graphics 620 (WHL GT2)

Actual results --- pulseaudio process is spawned and rapidly becomes the most CPU consuming process on my machine (especially after a few seconds, when the Web Content ones start to cool down). Even though no sound is actually played! When switching to another tab with no embedded video, pulseaudio keeps overloading the CPU. This only stops after closing Firefox.

Expected results --- I'm not sure this is what should be expected, but I'll give it a shot:

  • pulseaudio process should only be spawned when actually playing a media that requires audio
  • pulseaudio should not be the #1 CPU consuming process
  • pulseaudio process should at the very least not massively use CPU when no sound is playing

Asked by yarma22 1 year ago

Answered by jonzn4SUSE 1 year ago

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Opening firefox is just blank white screen even when opening it in safe mode

Opening firefox is just a blank white screen without borders (screenshot 1) Apparently it seems it didn't hang and it I can determine the location of the URL bar by hover… (read more)

Opening firefox is just a blank white screen without borders (screenshot 1) Apparently it seems it didn't hang and it I can determine the location of the URL bar by hover the mouse and can click the location of the close button to close the window This is different from most issues since they can open it in Safe mode I can't even open in safe mode since it also shows a blank white screen (screenshot 2) I already tried uninstall and reinstalling with fresh settings but nothing works

Asked by wasd2k6 1 year ago

Answered by wasd2k6 1 year ago

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Preview takes FOREVER to Load and Print - WHY?

Ever since you last changed Preview, it takes FOREVER for the darn page to load (be seen in Preview) and then FOREVER more to print. Half the time my doc doesn't even sho… (read more)

Ever since you last changed Preview, it takes FOREVER for the darn page to load (be seen in Preview) and then FOREVER more to print. Half the time my doc doesn't even show up the first time Preview loads and I have to repeat it. The only work-around I've found is to open my doc in Safari and then print - which is insane. What's wrong with Firefox??

Asked by John Gordon 1 year ago

Answered by John Gordon 1 year ago

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QR Codes wont show.

Whenever I have to scan a qr code, It turns into whatever that is in the image attached. Same thing happens sometimes when I try uploading images on certain websites. It … (read more)

Whenever I have to scan a qr code, It turns into whatever that is in the image attached. Same thing happens sometimes when I try uploading images on certain websites. It works fine on other browsers. It also happens while using Firefox safe mode. Sorry for not being detailed enough.

Asked by anon 2 years ago

Answered by cor-el 2 years ago