Extremely high CPU usage while playing video (youtube)

Firefox become hopelessly show to play even 480p videos from youtube 90% CPU usage while playing 720p video from youtube freezing randomly. (same issue on other notebook… (read more)

Firefox become hopelessly show to play even 480p videos from youtube 90% CPU usage while playing 720p video from youtube freezing randomly. (same issue on other notebooks, so I have a strong feeling it is not a hardware/notebook related issue) Hardware:

  • CPU: i7-6500U
  • RAM: 8GB / DDR3
  • Video: Intel HD graphics
  • Memory usage never runs above 60%

OS: doesn't matter, experiencing same issue on windows 7/10 and linux.

to compare, same video 1080p/60Hz played with:

  • brave/chromium ~30..35% cpu
  • mpv playing same video directly from youtube ~ 19..25% cpu
  • Firefox - constantly freezing, youtube autmatically switching from 1080p to 720p, then to 480p, playing 480p @ 60..90% cpu usage

I have tried everything from this forum and from others - nothing helped.

And finally, last nail in a coffin - even my very old notebook Core2duo with 2GB ram playing 720p videos with brave browser without issues while firefox struggling to play 480p, constantly freezing and making notebook fan run like crazy.

Firefox is literally forcing me to use other browser.

Asked by George Eliozov 1 day ago

Last reply by FredMcD 7 hours ago

can't logout old accounts

I'm trying to log out old and duplicate accounts from my firefox account list, I've managed to logout from all of those except 2 old account, if I press "sign out" button… (read more)

I'm trying to log out old and duplicate accounts from my firefox account list, I've managed to logout from all of those except 2 old account, if I press "sign out" button and enter the reason why I'm doing that it simply doesn't work, no errors no anything, it'll just stay there. any fix?

Asked by tsft1 1 day ago

Last reply by FredMcD 7 hours ago

Bookmark menu

Is there anyway to restore the format (compactness) of the Bookmark Menus without setting the Automatic Updates to not automatically update and then downloading the 88.0.… (read more)

Is there anyway to restore the format (compactness) of the Bookmark Menus without setting the Automatic Updates to not automatically update and then downloading the 88.0.1 version? I hate to not have the Automatic Updates, for obvious reasons, but don't want to use the double space of the Bookmarks even more.

Asked by mnt1cabin 1 month ago

Last reply by alan.sharkey 8 hours ago

bookmarks dissapeared one day

Hi! I have been a Firefox user on PC/Windows for a long time, years, and had quite a lot of bookmarks. One day, while various FireFox updates were happening, I noticed s… (read more)

Hi! I have been a Firefox user on PC/Windows for a long time, years, and had quite a lot of bookmarks. One day, while various FireFox updates were happening, I noticed something, I think it was a popup, saying something to the effect that all your bookmarks will be deleted. Huh!? Couldn't click on anything to stop the install. And after computer restarted, all the bookmarks were gone from FireFox, meaning when I go to the bookmarks button, nothing shows anymore. What happened? They are really gone or where to find a backup to get them back again? I don't recall ever backing them up on purpose, so if there was a backup, it would have been an automatic thing. Please give input. Thank you!

Asked by daqun_2014 9 hours ago

Last reply by jscher2000 8 hours ago

I have been locked out of my Amazon Prime account by Firefox. What can I do??

Please help me .. Can I talk to a live person on FireFox? I was locked out of my Amazon prime and Pay Pal. Not good at all . never had this happen before. … (read more)

Please help me .. Can I talk to a live person on FireFox?

I was locked out of my Amazon prime and Pay Pal. Not good at all . never had this happen before.

Asked by janet.d3 14 hours ago

Last reply by FredMcD 10 hours ago

Yesterday's Update Crashes

Since yesterday's update on my Windows 7, today I first got error messages on pages I usually visit, my home page and the Google signin page among my Favorites. The brow… (read more)

Since yesterday's update on my Windows 7, today I first got error messages on pages I usually visit, my home page and the Google signin page among my Favorites. The browser crashed when I tried to bring up Settings. Subsequently I could not open it again. I just shut down that computer in case repowering it solves the problem later. This is Mac Catalina. Firefox just updated here. I hope on this computer the problem does not surface.

Asked by tightpurchaser 2 days ago

Last reply by FredMcD 11 hours ago

3rd party messages

Security is important to me. In previous version any (blocked) 3rd party addressing can be listed when they are blocked. This list is important and allows me to decide if… (read more)

Security is important to me. In previous version any (blocked) 3rd party addressing can be listed when they are blocked. This list is important and allows me to decide if i would accept or not. A company like like UK's royal mail parcel tracking- was sending messages to Google that carried information about my computer (e.g.browser, operating system etc) I could see this before now no longer. To keep your credentials as independent and trustworthy this removal of information is a serious breach - is this at Google's behest?

Please re-instate this.

Asked by dmhh28 12 hours ago

Last reply by jscher2000 11 hours ago

Windows 7

I have an old PC desktop which I would like to replace with a newer model. I want to get a used one with Windows 7 on it. I know Windows 7 is no longer supported but I … (read more)

I have an old PC desktop which I would like to replace with a newer model. I want to get a used one with Windows 7 on it. I know Windows 7 is no longer supported but I have a lot of old software that I use, some not often, and have no desire to purchase new software. I was told that I could not download Firefox onto a newer PC with Windows 7. Is this true? I do have a laptop with Windows 10 that I use for on line ordering, etc. I like the desktop as it has a decent keyboard and mouse.

Asked by bouvsbunscavies 14 hours ago

Last reply by TyDraniu 13 hours ago

Sign In Not Accepting Password

Anyone else having problems signing in with password. Only started last few days. Is it a glitch as seems to be an intermittent problem. The pop up box keeps reappearing … (read more)

Anyone else having problems signing in with password. Only started last few days. Is it a glitch as seems to be an intermittent problem. The pop up box keeps reappearing after enetering password.

Asked by jdgrasty 17 hours ago

Last reply by FredMcD 15 hours ago

Firefox 90.0 update problems

After the last update to version 90.0, I can't continue to use firefox browser. The problem is about opening google sites (youtube, gmail). Other websites seems to work n… (read more)

After the last update to version 90.0, I can't continue to use firefox browser. The problem is about opening google sites (youtube, gmail). Other websites seems to work normal, but I can't open youtube and gmail now (google.com itself works heavily). When I type url and click enter, it takes so much time to load, often not loading the site or partially load. Other browsers installed on the same system works normally with the "problematic" websites. I tried hard reload (ctrl+f5), cleaning all browser data, and uninstalling and reinstalling. None of the mentioned actions helped. Please help me to identify and solve the issue.

Asked by cahangirove 1 day ago

Last reply by FredMcD 15 hours ago

Some URLs no longer open

Since the last Firefox update some websites do not open, but spin forever. Same site and same time open fine in Chrome etc. Same with opening a website from an email, ver… (read more)

Since the last Firefox update some websites do not open, but spin forever. Same site and same time open fine in Chrome etc. Same with opening a website from an email, very often they do not open but spin: copying URL to Chrome and they open correctly.

Something must have changed for the worse in the latest Firefox edition.

Asked by firefox586 19 hours ago

Last reply by FredMcD 17 hours ago

Ebay listing

We are receiving this message from Ebay when attempting to list a product (see below). Any suggestions how to work around it please? Thank you. Did Not Connect: Potentia… (read more)

We are receiving this message from Ebay when attempting to list a product (see below). Any suggestions how to work around it please? Thank you.


Did Not Connect: Potential Security Issue

Firefox detected a potential security threat and did not continue to scgi.ebay.co.uk because this website requires a secure connection.

What can you do about it?

scgi.ebay.co.uk has a security policy called HTTP Strict Transport Security (HSTS), which means that Firefox can only connect to it securely. You can’t add an exception to visit this site.

The issue is most likely with the website, and there is nothing you can do to resolve it. You can notify the website’s administrator about the problem.

Asked by nj.m 18 hours ago

Last reply by FredMcD 17 hours ago

Browser occasionally becomes unresponse and shows only the resizing icon on cursor

Occasionally, my browser will freeze and become unresponsive. I can't figure out a consistent trigger for when it occurs. Whenever it happens, my browser will not allow m… (read more)

Occasionally, my browser will freeze and become unresponsive. I can't figure out a consistent trigger for when it occurs. Whenever it happens, my browser will not allow me to click into any of the tabs or on any of the websites, and only shows a resize icon.

You can see an example of what I mean here.

I've tried reinstalling firefox, removing all cache and cookies. This is super odd since this only happens on my desktop computer, and not with any of my other machines (which use the same plugins).

Asked by Saarim 21 hours ago

Last reply by FredMcD 19 hours ago