Firefox CPU usage increases dramatically while playing YouTube videos full-screen

I'm using Firefox v 83.0 on Manjaro (Gnome) Linux. YouTube videos in theater/full-screen mode lag if resolution is higher than 360p and cause the CPU usage to burst. Thi… (மேலும் படிக்க)

I'm using Firefox v 83.0 on Manjaro (Gnome) Linux. YouTube videos in theater/full-screen mode lag if resolution is higher than 360p and cause the CPU usage to burst. This happens for large web pages as well: when I scroll the page, text overlaps and everything is terribly slow. I've checked and this seems to be a Firefox related problem; videos play smoothly both on VLC and Chromium. I've tried all official troubleshooting suggestions: changing to default theme, refreshing Firefox, starting in safe-mode, disabling extensions, disabling hardware acceleration and so on, with no success. I've never had any problems with Firefox for Linux before and I wonder what could be the cause.

I attached screenshots for comparison of CPU usage for the same video playing in theater mode in Firefox and Chromium.

Asked by Giulia 6 நிமிடங்கள் முன்பு

Share and Save Firefox collections

Hi all, How to share and/or save my Firefox Collections between mobile Firefox and synced desktop Firefox ? That would.be great if one can also use collections with de… (மேலும் படிக்க)

Hi all,

How to share and/or save my Firefox Collections between mobile Firefox and synced desktop Firefox ?

That would.be great if one can also use collections with desktop Firefox.


Thanks for reading,

Have a good day,

Thierry GARREL writing from Saint-Gely-du-Fesc, Occitanie, South of France

Asked by Thierry GARREL 34 நிமிடங்கள் முன்பு

Firefox Menu Bar Unresponsive

Hi, my Firefox Menu bar always randomly stops responding... the "Apple" Menu & the "Firefox" Menu (About, Prefs., Hide/Show, Quit both still work, but not the rest o… (மேலும் படிக்க)

Hi, my Firefox Menu bar always randomly stops responding... the "Apple" Menu & the "Firefox" Menu (About, Prefs., Hide/Show, Quit both still work, but not the rest of the Firefox menus (File, Edit, View, History, Bookmarks, Tools, Window, Help)... those randomly become unresponsive, then total stop when using Firefox...)

Is there a setting in Firefox, or is there a way using Apple's Activity Monitor, or a Terminal command to force a restart of the Menu bars? this is getting very annoying LOL

Asked by 4ryca09 44 நிமிடங்கள் முன்பு

Will not remember youtube preferences (Dark mode, Autoplay, etc...) between browser sessions and tabs (Windows 10)

The browser simply refuses to save such personal preferences anymore, up until the last update this hasn't been an issue. Before i updated youtube would remember to use d… (மேலும் படிக்க)

The browser simply refuses to save such personal preferences anymore, up until the last update this hasn't been an issue. Before i updated youtube would remember to use dark mode and disable autoplay without fail, now i have to reset these preferences every time i open a new youtube tab. When i open a new tab on youtube the screen starts as if it were in dark mode and then smash-cuts to light mode with autoplay as soon as the video and recommended thumbnails load up. This doesn't happen on Chrome, and when i set my system preferences in the windows options menu it does default to dark mode (but i really hate the systemwide dark mode there).

I could really use some help here if anyone is able to, half of my browsing youtube is in the dead of night and i really don't need the added eye strain every time i want to watch a new video outside of my queue.

Asked by vidlover97 1 மணி நேரம் முன்பு

Firefox freezing

For some reason Firefox keeps freezing and i can't do anything on my PC and have to restart it to bypass the issue but the same problem keeps happening. I'm not sure what… (மேலும் படிக்க)

For some reason Firefox keeps freezing and i can't do anything on my PC and have to restart it to bypass the issue but the same problem keeps happening. I'm not sure what the exact issue is or how to fix it.

Asked by samarigil66 6 மணி நேரத்திற்கு முன்பு

Last reply by FredMcD 1 மணி நேரம் முன்பு

Readers View issues

With some websites, when I click on the Reader View, instead of seeing the text from the webpage it shows me what is clearly a privacy disclaimer. (See attached screens… (மேலும் படிக்க)

With some websites, when I click on the Reader View, instead of seeing the text from the webpage it shows me what is clearly a privacy disclaimer. (See attached screenshot.) Why is this happening, and what can I do to fix it?

Asked by randomtitle 4 நாட்கள் முன்பு

Last reply by FredMcD 1 மணி நேரம் முன்பு

Download settings keep reverting to default

I have the download setting to "Always ask you where to save files". Unfortunately, Firefox keeps changing the setting back to the default. I understand that, unfortun… (மேலும் படிக்க)

I have the download setting to "Always ask you where to save files". Unfortunately, Firefox keeps changing the setting back to the default. I understand that, unfortunately, whenever Firefox does an update it changes all my settings back to the defaults (but that's a different issue).

I have 'Firefox updates' set to only install when I okay the install. Unfortunately something is changing even when I have not run an update.

Why might my download settings be reverting back to the default setting?

Asked by llbresee 12 மணி நேரத்திற்கு முன்பு

Last reply by FredMcD 2 மணி நேரத்திற்கு முன்பு

How to completely empty my email trash folder

My webmail is at 91%. I want to empty the Trash, but when I click "Empty Folder" it does not empty. How do I do this?

Asked by susan_tussing 5 மணி நேரத்திற்கு முன்பு

Last reply by jscher2000 2 மணி நேரத்திற்கு முன்பு

image copy problem with jpg images on a specific website - pixiv.net

I often view pictures on https://www.pixiv.net/ When I select one jpg image on pixiv.net, copy this picture and then paste it to somewhere else, It becomes completely bl… (மேலும் படிக்க)

I often view pictures on https://www.pixiv.net/ When I select one jpg image on pixiv.net, copy this picture and then paste it to somewhere else, It becomes completely blank. And the copied image file is broken due to unknown reasons. Here I added one picture. It shows the result when I paste a said jpg image from pixiv.net to somewhere else (like a word document page). This issue happens with firefox 83 and firefox beta 84. It never happens with firefox 82. I don't know what caused this issue.

Asked by lordingholic 3 மணி நேரத்திற்கு முன்பு

BLOCKING FILE SYSTEM ACCESS -- DANGEROUS ALLOWANCE -- IDEAS & SUGGESTIONS

Hello to all, I was searching on Google how to block file:///C:/ or file:///D:/ because this is dangerous to allow!!! Shocking! And this is still not fixed after years… (மேலும் படிக்க)

Hello to all,

I was searching on Google how to block file:///C:/ or file:///D:/ because this is dangerous to allow!!! Shocking! And this is still not fixed after years of developments... Why? To keep this allowed makes it too easy for hackers, especially with multiple screens and a shadow/background screens available which can be running in the background, not seen, when hackers do that.. Kind of the way TeamViewer allows help to be provided remotely. Kind of screen sharing. Oh well...

Maybe need lots of complaints from you all to get this changed?..


Try yourselves to use file://C:/ with 2 // and file:///C:/ with 3 // and both are allowing access to the whole file system and any data file. BONKERS??? But why to use 3 /// if 2 // still works? Insider's job or programming conflict? Why would Firefox programmers allow that? I do not understand...

I tried to use selective website blocker, but for file:/// that addon says that the page is not supported... Maybe another type of addon could be developed for this to be blocked and secured once and for all, but not sure if Firefox would allow such an access or such a blocking. May cause issues with Downloads and accessing download folder from within Firefox. HOWEVER, they could block any system or file access from the ADDRESS BAR and SEARCH BAR and then do a work-around solution by developing a special warning 'dialog message' each time when any user (owner or remote user) tries to access forlder to see or use any file. That would be a lot like a guest account requiring password to access special folder or file, or wants to perform an action usually not allowed for a guest user. Password is required for that each time, or at leats a visual confirmation. That would help, I hope...

Would need to re-educate users after this! TOO DANGEROUS TO KEEP THIS IN SUCH A WAY AS IT IS NOW!!!!

DOES FIREFOX TEAM UNDERSTAND THIS? Maybe they forgot about this, maybe they did not figure out how to solve this, or maybe someone from an inside is helping hackers to have a very easy access? Not sure, but this "open doors to all system and data files for anyone" is shocking!


What about business or government people? What about online bullying and harrassment? What about privacy about which Firefox writes so much? Need more complaints to make this a serious issue. So, everyone, please write your own comments or complaints to Firefox and Chrome directly and maybe they will listen. This may take more work than we think, but my ideas may help. What about your ideas? Express them below and maybe they will help as well.


You all can ask them for this to be blocked or solved, so ask. Maybe my ideas will help to get this moving. Write your own to them as well. And Microsoft may need to get involved as well because Firefox, and from what I read, Chrome allows this too... Other browsers may be doing that as well...!!!!!! There are loads of various browsers available!!!! I read something about Windows Policies, but I do not understand what that is...


(( !!! )) If any of you will try any system changes in an attempt to try solving this issue, make sure you are okay to risk with crashed system requiring reinstall or recovery to be used, and then, write down all the changes you do in detail before carrying any further and applying them because that may ruin the system without a way to recover it.

Thank you in advance.

Asked by XERRAX 9 மணி நேரத்திற்கு முன்பு

Last reply by jscher2000 4 மணி நேரத்திற்கு முன்பு

Firefox placing ads on my browser

This is BEYOND excusable. I opened up FF today, from a nice new update, to see that there are now paid ads that will force their way onto my browser's favorites. Is... is… (மேலும் படிக்க)

This is BEYOND excusable.

I opened up FF today, from a nice new update, to see that there are now paid ads that will force their way onto my browser's favorites. Is... is there a reason for this? I know it wasn't an add-on that did this, since I only have 1 installed for the past couple of years without issues.

Is there a setting for this? Or is it just time to move on to a new browser? I'd rather use Edge than deal with a browser that adds sponsored crap without my permission.

Asked by flafe5 8 மணி நேரத்திற்கு முன்பு

Last reply by jscher2000 6 மணி நேரத்திற்கு முன்பு

Youtube progress bar save all the time old watching time

I dont remeber where but i years ago found in internet something about increase buffering videos on yt or something like that and it said to go to about:settings and chan… (மேலும் படிக்க)

I dont remeber where but i years ago found in internet something about increase buffering videos on yt or something like that and it said to go to about:settings and change something but yea i dont remember what i changed i mean for long time when i close browser with opened video it all the time move back video to old time for example video 1h and i close at 30 min but earlier i closed at 10 min and it will move all the time back to 10 min.It was something about saving video time i extended it to max probably so maybe every one hour or something it will track the time.

Asked by kosa8237 6 மணி நேரத்திற்கு முன்பு

Killing battery on new Apple M1 13" MacBook Pro

Has anyone else reported severe battery draining on a new M1 chipped MacBook Pro? I noticed that the battery was draining as quickly or quicker compared with the one in … (மேலும் படிக்க)

Has anyone else reported severe battery draining on a new M1 chipped MacBook Pro? I noticed that the battery was draining as quickly or quicker compared with the one in my old 2014 15" MacBook Pro. I checked Activity Monitor and saw that the CPU utilization for the Firefox WebExtensions process was consistently north of 99%, even while I was doing nothing.

I've switched to using Safari and I'm now getting the incredible battery life I expected having read all of the reviews for the new M1 laptop.

I've been using Safari (on battery, with the screen at full brightness) for over an hour now and it hasn't moved from 100% yet.

This morning it went from fully charged to below 20% in less than five hours with brightness at 50% or less for half of that time. I'm sure I can't be the only new MacBook user who has noticed this?

Please fix the problem Mozilla as I'd much prefer to use Firefox vs Safari but not if it kills battery time like this.

Asked by i_a_henderson 10 மணி நேரத்திற்கு முன்பு

Last reply by AliceWyman 7 மணி நேரத்திற்கு முன்பு

Tab key behavior in the address bar has changed

11.23.20 Some time in the last week, the behavior of the tab key has changed in the address bar. Previously it would cycle through address/search bar items. Now it is ope… (மேலும் படிக்க)

11.23.20

Some time in the last week, the behavior of the tab key has changed in the address bar. Previously it would cycle through address/search bar items. Now it is opening up the autocomplete window for the address bar.

There are already keys that do that. (Down arrow, etc) I don't want another, particularly not another that I frequently used to tab over to the search box and favorites.

Does anyone know a way to revert or disable this behavior without completely disabling the auto complete window under that address bar? Alternatively, whatever shortcut keys now cycle through address bar items.

Asked by rb0014 8 மணி நேரத்திற்கு முன்பு

some random site keep asking for sign in to continue to allizom.org

Whenever I open firefox, some random Gmail logging keeps popping up that says sign in to continue to allizom.org Not able to get rid of this. I don't let me do anything o… (மேலும் படிக்க)

Whenever I open firefox, some random Gmail logging keeps popping up that says sign in to continue to allizom.org

Not able to get rid of this. I don't let me do anything on firefox.

What should I do?

Asked by soniasinghal961 8 மணி நேரத்திற்கு முன்பு

Last reply by cor-el 8 மணி நேரத்திற்கு முன்பு

settings changed following latest update to browser

Following an update to the browser, I've lost the ability to keep webpages tabbed and visible when on other pages. The browser also conceals the Microsoft tasks bar at t… (மேலும் படிக்க)

Following an update to the browser, I've lost the ability to keep webpages tabbed and visible when on other pages. The browser also conceals the Microsoft tasks bar at the bottom of the monitor. Is there a way to anchor the open pages and reduce the page so the task bar stays visible?

Asked by isuzutrooper_1998 9 மணி நேரத்திற்கு முன்பு

Last reply by jscher2000 8 மணி நேரத்திற்கு முன்பு