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Certain videos stop playing/cant be played

Starting recently my FF(v102 &103) is not able to play certain videos anymore. The space for the video is on the page as are the control elements, play/pause, quality… (read more)

Starting recently my FF(v102 &103) is not able to play certain videos anymore. The space for the video is on the page as are the control elements, play/pause, quality, volume, etc, all fully functional. Just the video isn't starting. They do for a while after a restart but inevitably will stop doing so after an hour of use. I havn't been able to figure out what destroys the capability to play videos, but I narrowed it down to certain types. As far as I can tell its MP4 videos in general while on Youtube its AVC1 videos that are not playing. VP9s and ogvs work fine even after the video capability of the browser has been lost. I'Ve check in about:conifg and everything is set to true in terms of media.*

Asked by michkov 1 week ago

Last reply by michkov 1 hour ago

Complete hang when accessing the World of Tanks website

When you visit a specific page on the site from the theme, after a few seconds, the computer freezes completely. Such that even the mouse stops moving. I checked several … (read more)

When you visit a specific page on the site from the theme, after a few seconds, the computer freezes completely. Such that even the mouse stops moving. I checked several times - the problem is connected precisely with Firefox and with this page and nothing else. On the third hang, the firefox.exe file was even deleted and I reinstalled it with the transfer of the profile. Closing this page until it has time to boot has solved the problem of computer freezing. Is this observed in everyone? https://worldoftanks.ru/ru/news/special-offers/wot-12th-anniversary/

Asked by chimmag 3 days ago

Last reply by chimmag 2 hours ago

firefox using 80% of memory

recently can't do much of anything cause firefox is using greater than 80% of my memory, why? I switched to firefox from chrome but it seems firefox tends to use much mo… (read more)

recently can't do much of anything cause firefox is using greater than 80% of my memory, why? I switched to firefox from chrome but it seems firefox tends to use much more memory....disappointed as I like the functionality

Asked by katinfoco 7 hours ago

Last reply by RobertJ 3 hours ago

Unable to access many sites, which I could previously

Until recently my browser accessed all the sites I have used for years and now I cannot access them. As an example the message I receive is "You don't have permission to … (read more)

Until recently my browser accessed all the sites I have used for years and now I cannot access them. As an example the message I receive is "You don't have permission to access "http://booking.jetstar.com/au/en/booking/select-flights" on this server".

Reference #18.62052017.1660274157.1f6107dd Other sites like my banking site I can access freely on Edge but cannot on Firefox. No error message in that case, just says error try again. All this started after I loaded Norton. I have had them look at the system, and they have, but also point out that it is not them as I can access the site from Edge. I have looked at the help page and their are thousands of people with the same query but no fixes! As a long term supporter of Firefox I am disappointed that I now have to use Edge to do most of my business. HELP

Asked by arf112 3 days ago

Last reply by jscher2000 - Support Volunteer 3 hours ago

Firefox has become slow to open tabs - please see details

I can really use some help. Odd Firefox behavior. Been using Firefox forever. And the same way every day. Same way. Have a working group of 88 sites I open after starting… (read more)

I can really use some help. Odd Firefox behavior.

Been using Firefox forever. And the same way every day. Same way. Have a working group of 88 sites I open after starting Firefox. Usually takes 2-3 minutes tops for all to be readied. Now taking 10-12 minutes or more. Just last few days.

I have three versions of Firefox. Right now main is 91.12 ESR which updated a few days ago. Also 91 ESR portable and 102.1 ESR Portable. All act the same. All used the same profile, copied from one to another.

Things do change so I see that my ESET antivirus updated and could be it. Turning ESET off temporarily made no difference.

Opening the session does use 100% CPU, but that is not new. Always has pegged. Comes down to normal when all opened. Single sites open as expected. And after all sites opened, FF acts as it always did with no issues. Its just loading all the tabs that is the issue.

ODD Note: If I open the 91 ESR profile, then Startup Cache folder, clear the cache from about: Support, it does not delete the files. Yet that IS the profile being used. On at least one of the portables, that works as expected. If I delete the Startup cache files and open FF 91 ESR, it does not rebuild them. Makes me think it is using a different profile, but I am sure it is not.

I cannot try Safe Mode as the Session Manager would not be there to open the saved session. I may try turning off some Add-ons to see if a conflict, maybe with something added or updated recently.

Connection speeds have not changed and are above 400 Down and 150 Up.

As mentioned, this has worked for years. Sometimes with as many as 120 tabs. So it has to be a recent change.

I do have changes made to about:config but no idea where to try to make changes there to sleuth this issue. Happy to post the changed items, though long list.

Can anyone help at all? Anything more I can tell you?

Windows 10 latest build.

Asked by in4m8n 1 day ago

Last reply by in4m8n 4 hours ago

Browser Completely Unresponsive

Recently Firefox started "crashing." It would be running just fine, and then websites would just stop loading. If I clicked a link or searched for something, it would be … (read more)

Recently Firefox started "crashing." It would be running just fine, and then websites would just stop loading. If I clicked a link or searched for something, it would be stuck loading until I restarted Firefox. I tried restarting my computer as well, but that didn't work either, as the issue just came back within a few hours.

Sooo I went to google to search for answers. I got to a forum (https://support.mozilla.org/en-US/questions/881250) that seemed promising, and edited my network.http.max-connections value from 900 to 48, as the chosen answer suggested. I figured if it didn't work, I could always just change it back.

How wrong I was.

Not only did it not work, it prevented me from doing anything. Now when I open Firefox, nothing loads. I can see the toolbar, search bar, and my bookmarks, but the actual screen is blank. No widgets with my frequently visited sites and some news stories, no homepage, just blankness. When I enter a url or do a random search or even try to open about:config, nothing happens. It doesn't even show a loading icon.

I attempted to refresh Firefox, but it got stuck in the loading stage, which I attributed to my already breaking it somehow. So I uninstalled and reinstalled Firefox. But no dice. It's still entirely unresponsive.

Any help would be appreciated. Please keep in mind I'm largely computer illiterate!

Asked by hanentr 1 day ago

Last reply by hanentr 8 hours ago

Issues with Yahoo Mail tab CLOSING after download

Since the most current Firefox update in June 2022, when in Yahoo Mail and downloading an attachment, as the download complete, the Yahoo Mail tab is automatically closin… (read more)

Since the most current Firefox update in June 2022, when in Yahoo Mail and downloading an attachment, as the download complete, the Yahoo Mail tab is automatically closing, requiring I to go to 'History', then 'Recently Closed' tabs to re-open it. This happens Every.Single.Time I download photos and scanned docs from email. Again, this has never happened before - only with the recent Firefox update. I have 2021 a MacBook Pro.

Asked by dawnpdavis 1 month ago

Last reply by nof_j 8 hours ago

Facebook Messenger will not load. Firefox was updated to 103.0.2 (64-bit) on August 9, 2022. Loads and works properly in Chrome

Facebook Messenger will not load. Firefox was updated to 103.0.2 (64-bit) on August 9, 2022. Was working prior to that update. Loads and works properly in Chrome. Have cl… (read more)

Facebook Messenger will not load. Firefox was updated to 103.0.2 (64-bit) on August 9, 2022. Was working prior to that update. Loads and works properly in Chrome. Have cleared cookies and cache.

Asked by rsnell1 9 hours ago

Cannot login to spectrum

Hi, I have a laptop with windows 10 on it latest version of I was up-to-date and I have the latest version of Firefox and streaming like Netflix and Amazon and I will wor… (read more)

Hi, I have a laptop with windows 10 on it latest version of I was up-to-date and I have the latest version of Firefox and streaming like Netflix and Amazon and I will work fine no problem at all but something happened to my ability to log into spectrum it’s a TV thing that I use and I try to login with my credentials and it just recycles there’s no error message nothing I’ve tried pretty much everything clear cookies for the suicides and I’m stuck any suggestions possible I’ll try to include a video thank you. I try to attach a video but it doesn’t work sorry

Asked by gcohen6 12 hours ago

Last reply by RobertJ 10 hours ago

Downloading with Firefox stops several times.

Downloading with Firefox stops repeatedly and is very annoying. Sometimes first get the following message that Firefox "..nloads\CZ5EEAZM.exe.part could not be saved, bec… (read more)

Downloading with Firefox stops repeatedly and is very annoying.

Sometimes first get the following message that Firefox "..nloads\CZ5EEAZM.exe.part could not be saved, because the source file could not be read. Please try again later, or contact the administrator of the server. " (see sattach creenshot)


After pressing repeat too many times, the file will finally be downloaded. Sometimes it doesn't work and Firefox crashes.

Question, who recognizes the problem and more importantly how do I solve it?

Systeminfo: Editie Windows 10 Home Versie 21H2 Installatiedatum ‎8-‎12-‎2021 Build van besturingssysteem 19044.1889 Ervaring Windows Feature Experience Pack 120.2212.4180.0

Firefox version 103.0.2 (64-bits)

Asked by Diederik-_- 2 days ago

Last reply by jonzn4SUSE 19 hours ago

Firefox Freezes when I copy links

Over the past few weeks, any time I copy a link, whether it's an email address or a URL, from within any page while using Firefox, FF will freeze? Pause? not respond.. fo… (read more)

Over the past few weeks, any time I copy a link, whether it's an email address or a URL, from within any page while using Firefox, FF will freeze? Pause? not respond.. for 5 - 15 seconds. I've not done a reset yet.. Windows 11, 16GB RAM, 2GB Video, religiously updated and maintained laptop

Asked by BRAM SCOLNICK 11 hours ago

"Something Went Wrong" message on Firefox ONLY when trying to make Messenger voice or video calls

I've spent quite a bit of time on this. This error is on Firefox only, has been continuous for I believe three days. I troubleshot everything that I know to be possible. … (read more)

I've spent quite a bit of time on this. This error is on Firefox only, has been continuous for I believe three days. I troubleshot everything that I know to be possible. My camera and microphone work just fine everywhere but on Messenger using the Firefox browser...

Asked by beckykale.1 11 hours ago

Very slow loading pages and videos

Loading regular pages like HomeDepot or Wellsfargo are very slow. Can take 30 sec. Videos from CNN or Youtube can take 1 min top load if at all. I have gigabit internet … (read more)

Loading regular pages like HomeDepot or Wellsfargo are very slow. Can take 30 sec. Videos from CNN or Youtube can take 1 min top load if at all. I have gigabit internet and pages load withing 2 sec on Microsoft Edge. I have tried complete removal and reinstallation of Firefox. I have default theme and no extensions installed. I have tried turning off Norton 360 firewall and antivirus, starting Firefox in safe mode, starting Windows 10 in safemode. Nothing helps. Have not only scanned computer with Norton but also with Malwarebytes and found no adware/ viruses. HTML5 seems to be working fine according to a diagnostic page I visited. Firefox works great on my laptop from same internet connection. Have 40 gigabytes free space on disk drive. Please help

Asked by bperryiii 11 hours ago

Thumbnail failure

The thumbnails on the Firefox page used to take me to the thumbnail home page. Recently this became inconsistent, now the thumbnails try to take me to their home page bu… (read more)

The thumbnails on the Firefox page used to take me to the thumbnail home page. Recently this became inconsistent, now the thumbnails try to take me to their home page but the process stops. I have already refreshed Firefox and that did not help. Then I uninstalled and reinstalled Firefox. The thumbnails come up but their functionality is still broken. How do I fix this problem?

Asked by kfarley1 1 day ago

Last reply by RobertJ 17 hours ago

not responding

The browser is open but every time I click on something it won't respond and I keep on clicking my mouse until it respond. It also pop up with browser not responding. I… (read more)

The browser is open but every time I click on something it won't respond and I keep on clicking my mouse until it respond. It also pop up with browser not responding. It's starting to get annoying same as typing words the letters won't pop up until a few seconds later. Same goes with deleting too. It won't delete as I keep on pressing delete, it will start deleting 5 seconds later.

Asked by crab2675 1 day ago

choppy video and high cpu usage

Hi I am running Firefox 103 on my lenovo thinkpad T570 running windows 10. Streaming any video (e.g. BBC iPlayer or GCN+ or any source I have tried) Video very choppy, fr… (read more)

Hi I am running Firefox 103 on my lenovo thinkpad T570 running windows 10. Streaming any video (e.g. BBC iPlayer or GCN+ or any source I have tried) Video very choppy, freezes for several seconds while audio continues as normal. this is essentially unusable. Task manager shows firefox running at 70% or more I have tried all the power management settings and that makes no difference. The Nvidia Gforce940 appears not to be used at all. All my drivers are up to date I have tried firefox troubleshoot mode, which makes no difference full screen mode or not makes no difference (its a 4k screen so I wondered if it was doing some kind of upscaling) makes no difference whether I run on external monitor or internal. Also makes no difference whether the laptop is connected to my thunderbolt dock or not. I can run the same content side by side in Chrome. Chrome displays the video smoothly with no glitches at all and consumes around 16% CPU (still no Nvidia GPU utilisation)

This problem does not happen on my other PC, a 5 year old Intel NUC, with i5 cpu, also running win 10 connected to my TV.

If i can't fix this I will have to very reluctantly revert to Chrome for video streaming I havent worked uot how to obtain the troubleshooting info to share but happy to do this if necessary

many thanks John

Asked by jcpw 1 week ago

Last reply by RobertJ 1 day ago

Gmail and Google Drive

I cannot upload files to Google Drive (tells me there are 93 hours left), and it takes several reload tries to log into my gmail account. This has been happening for the… (read more)

I cannot upload files to Google Drive (tells me there are 93 hours left), and it takes several reload tries to log into my gmail account. This has been happening for the last two weeks. What gives?

Asked by bierstadttlovr 1 day ago

10 August, 1317 PT-firefox is not allowing internet access on my computer; window open, but do not connect. Other browsers work just fine

10 August, 2022 @ 1317 PT-firefox is not allowing internet access on my computer; new tabs open, but do not connect. Other browsers work just fine at the same time. My i… (read more)

10 August, 2022 @ 1317 PT-firefox is not allowing internet access on my computer; new tabs open, but do not connect. Other browsers work just fine at the same time. My internet connection is within normal range-and other browsers work fine Help please

Asked by Timothy1610 4 days ago

Last reply by RobertJ 1 day ago