Firefox Support Forum

Hi, I just replaced my SSD (Samsung 960EVO m.2 250Gb) for a larger/faster SSD (Samsung 980 m.2 1Tb) . I'm on Windows 10 and have 32Mb Ram. Firefox is now very slow on some websites (not all).

This example is typical and has occured on multiple sites. To test and compare, I copied the URL, created a new tab in Firefox, then Paste and Go. I timed this 3 times and each time was 30 seconds. I Pasted the same into Chrome and Edge and each time it was instant. https://savingschampion.co.uk/best-buys/personal/easy-access-accounts

On my previous SSD, there was never an issue of any lag on any site.

BBC.co.uk/news is fine, as are several other sites. Does anyone have any idea what's happening? This is making Firefox unworkable for me, so unless I can fix the issue, I will have to move permanently to Chrome or Edge. That would be a shame after many years with Firefox.

Thank you in advance.

Recently, I have been unable to hold down backspace to delete multiple characters in certain text boxes in Firefox. Namely, in the EndeavorOS forum post text box, Google Docs, and the google search box. I am not experiencing this issue with any other app, and in chrome, with the same pages, the issue doesn’t occur. The issue also does not occur in the URL box or the forum post text box here. The issue still occurs in troubleshoot mode.

I can't play a video when logged into a website - see https://support.mozilla.org/en-US/questions/1371380

I'm sure it is not Firefox as I have also tried Chrome and Opera; same problem. How can I debug this and find out why the video cannot be played ?

I see there is 'Remote Debugging' and 'Browser Console' under 'More Tools'. How do I use these or other tools to find out what is causing the problem please ?

I'm a long time FF user. Version 121 works perfectly .

 Ever since 121.01 , updating breaks EVERYTHING.   Most of my add ons cant access their data, websites dont work, etc.  

 Not only that ,  but reverting to 121 does not help.   So the profile data itself is being trashed. 

 Restoring the full profile from a backup is successful, but only with version 121.   Any version beyond that breaks it. 

 I also tried a full delete and reinstall of Firefox, but that did not work.  Same problem.

 A full rebuild of all the add ons from scratch  might be my only option at this point if we cant figure out why this is happening.

Whenever I attempt to watch something on any streaming service, I get an error message from the streaming service and a note from Firefox saying "The WidevineCdm plugin has crashed." I have tried to solve this problem a number of ways, but have unable to find a solution.

My best guess is the problem is due to the most recent WidevineCdm update, as in the plugins settings the most recent update for the plugin was on 10/21/23, which is shortly before I first noticed the problem. I did test out various streaming platforms on other computer browsers (Chrome and Microsoft Edge) — they gave the same website errors as I got on Firefox, but those browsers did not indicate the cause or suggest which plugin failed. I additionally tested out desktop apps for some of the streaming platforms; they work fine without any issues, but unfortunately the main streaming platform I use doesn't have a desktop app and only works in browser.

My computer is a Lenovo Yoga 9i, it's running Windows 11, and everything is up-to-date.

The methods I have tried to fix this issue with, to no avail: - submitted crash reports - toggling the "play DRM restricted content" options in Firefox, and toggling whether or not the WidevineCdm was activated, closing the browser between each toggle of options - clearing Firefox's cache - running Firefox in troubleshooting mode to make sure it wasn't a different extension interfering with it - tried running Firefox in compatibility mode - tried to find support from the people who made WidevineCdm, but apparently they don't do end-user support - deleting the WidevineCdm manually from the program files for Firefox and Chrome (since Firefox says the plugin is from Google), and then reinstalling it via the chrome components page. This briefly lead to the message on the plugin page that WidevinceCdm would "begin installing shortly." It seemed frozen like that for a good while, but then I tried clicking the "check for updates" and that message disappeared, and it went back to crashing when I tried using a streaming service. - uninstalling both Chrome and Firefox, restarting the computer, then reinstalling both browsers

As far as I can tell, the plugin comes automatically installed in the browser, and there isn't an alternate plugin for decrypting DRM-restricted content. If there's a way to set the WidevineCdm to a previous version before the update that's crashing it, I haven't found it, but I am no expert in computers or coding, and my guess about it being caused by the recent update could be wrong too.

I'm at my wit's end here, any help fixing this problem is greatly appreciated.

I get this error when trying to access my email using FireFox. Lately this (or a similar) error happens weekly if not every couple of days. Always first thing in the morning, too.

UTC Date: 2023-07-16T15:17:20.490Z

Client Id: 57C5EE00898E486392D56E4C2F706F9E

Session Id: 84e33266-6f14-4c67-bcf7-f5589a5e04c5

Client Version: 20230707009.10

BootResult: network

Back Filled Errors: Unhandled Rejection: Error: NetworkResponseError:undefined|undefined:undefined

err: Error: NetworkResponseError

esrc: StartupData

et: ServerError

estack: K@https://res-h3.public.cdn.office.net/owamail/20230707009.10/scripts/owa.mailindex.js:2:260625

p/<@https://res-h3.public.cdn.office.net/owamail/20230707009.10/scripts/owa.mailindex.js:2:259787

my email works just fine using Safari so I am at a loss.

I have tried running FF (Firefox) in safe mode, ensuring outlook.live.com is an exception to the pop up window blocker, changed default protections on outlook dot com to none from standard.... Turned off ABP, clearing cache and cookies from within FF.

it may be worth mentioning that I can still browse/access other websites while outlook produces this error, and my network settings within FF are set to use default system settings (no proxy).

After start up Firefox I am not getting any audio. No other app nor browser has this issue. It does not show up in the volume mixer. I've made sure all apps, browser, drivers, and windows are up to date.

I keep getting this message that pops up in a private window to restart to keep using firefox. Everytime I click restart Firefox, it closes my tabs and opens them again. However, 5 minutes later the window pops up again. Even after repeated attempts of updating, even doing a full restart on the computer, Firefox continues to send this window to me. The private window in the bar says about:restartrequired.

I've tried uninstalling Firefox with a fresh install as well as doing a Refresh of Firefox. Neither seem to solve this problem.

Just recently, I've been having problems with websites run by Cloudflare. Whenever I attempt to access ANY website that is operated by Cloudflare, I'm often presented with a blank page, or a Firefox error message. Sometimes I'm even presented with the DDoS protection error, even though my computer is clean having being scanned by Kaspersky and Malware Bytes.

I reiterate this and say that it's only Cloudflare sites that are causing problems. Very occasionally they will work for up to an hour or so but most of the time it is error messages or blank pages. Interestingly, other web servers such as Amazon, OVH SAS and Akamai all run with no problems so I wonder what is Cloudflare's problem? Is this something to do with my browser or the web hosting services?

When I run Firefox on Linux, the window initially starts at 1260x720 size. But when I try to maximize it, then the Firefox window size gets much larger than my screen's resolution. The maximized size is 2800x1600 size, my monitor is 1920x1200 only.

I tried different versions of Firefox and noticed this new behavior started with version 73.0, while it worked fine in 72.0.2 and versions before it. I even tried 73.0b1 and it has the issue already. I see the same exact issue when I tried the latest version 108.0.2 as well. It seems like something got broken in 73.0 unless I'm doing something really wrong.

Not sure if it makes the difference, I'm using MWM window manager on Linux. Please advise.

I support open source movement and against tech giants and hence I love and want to use Firefox. I would use Firefox even if it is slow because on most sites delay of few seconds doesn't matter. But I do stock market trading and trading website of my broker (finvasia.com) is very slow in Firefox. On all chromium based browsers slowness is not there.

In trading delay of even one second is a matter of profit and loss (specially in scalping) and hence using Firefox is not possible as it is very slow for finvasia.com.

I have done screen recordings to give an idea of degree of slowness. First video is when finvisa is opened in a chromium based browser MIN. As you can see that when I change from holdings to position etc then delay is very less. (the yellow circle on the screen hardly complete one complete rotation and holding or position scree is opened). In this video you can also see that when I place order or modify it, everything happens so quickly.

Finvasia on chromium based browser

But in the below video (finvasia in firefox) you can see that when I switch from holding to position (00:2) the yellow circle (just above the pointer) makes 9 complete circle before showing the screen. When I click on Buy button on order screen (00:34) the order doesn't get fulfilled (the order rectangle didn't disappear). At 00:47 it said connection issue (There is no connection issue, wifi is working fine and never show any connection issue in chromium based browsers but in Firefox it shows in every order).

I kept waiting but order rectangle didn't go so finally I had to close it manually (1:45). After that when I switched to order screen it didn't show any single order. I tried to refresh the order screen (1:59) but nothing happened. So finally I refreshed the tab of browser. It was also hanged and after few click it worked and then you can see that there were many orders on order screen.

Finvasia on Firefox

As trading involves money and such delay can cause huge loss. Trading on Finvaisa.com is not possible if a person is using Firefox.

I also tried safe mode, and refreshing the Firefox, but problem didn't get solved. Kindly fix this problem.

Firefox version is latest (99) and I am attaching screenshot to give details about my system and OS.

I got a notice that Firefox (and Thunderbird) were updated this morning. Took me an HOUR to find out how to make the miniscule font in my inbox larger. So.. suddenly, new problem.

When I click the Firefox icon to launch the browser, and reopen my tabs, It opens for a millisecond, then closes faster than I can try to read if there is an error. When I click it AGAIN, all my tabs are GONE and I have to search for them manually, which is a royal pain.

Why is this happening? How can I stop it from happening? This is annoying as hell.

TO MOZILLA DEVELOPERS

In spite of hundreds if not thousands of users reporting this issue over and over again, and your suggested workaround to reduce memory usage in the settings that doesn't do anything - FIREFOX is still using unacceptably HUGE amount of memory.

With just FOUR (4) tabs open in one window, in the Task Manager I can see 17 (!!!!!!) Firefox windows open using 830 MB of memory. The highest usage of all my apps including memory hungry media apps. It's using THREE times as much memory as my Adobe Audition processing edits of a 1.5 hr audio with several clips.

This is insane!! You have gone crazy with caching to the point of making this browser unusable.

It's freezing up and crashing my Audition so before I work in it I must shut Firefox down completely - and I work on a powerful tower PC designed for media.

If you don't seriously cut back on this insane caching for the sake of browsing speed IN THE NEXT UPDATE, I won't be using your browser at all, it's simple as that. I'm already migrating my bookmarks and setting up Chrome which uses about half the memory that Firefox does with the same tabs, and I suspect that many users will follow suit.

The workarounds you offer DO NOT WORK. Any app that uses more than 500 MB of memory at any give time on my computer - goes.

There was no such problem before, after the 117 update, the CSS theme I use is constantly reset and the browser returns to its default theme. The screen goes black for a moment and then the theme resets or the browser crashes. Is there anyone who has experienced the same problem? Any possible solutions?

Using this theme: https://github.com/Neikon/Fox11

I'll add 2 pictures of what my browser looks like when normal and crashed.

I'm using Firefox 106.0.1 on Ubuntu 22.10 from Mozilla's official PPA but when I open some websites the browser crashes with the message "Exiting due to channel error.". I found the error could be related to libwebp with LTO enabled, may be it is, but I rebuilt the Ubuntu's package without LTO and one website stopped crashing, dell.com support page, but several others still crash, like amd.com.

I was watching anime today on some site and my firefox was downloading many files without my knowledge into my download folder. I'm worried that it can be some viruses? This is a screenshoot. Should i be worried? Thank you for help.

I have been receiving the following error code 'PR_END_OF_FILE_ERROR' on several website on my Firefox browser. Sometime, not all the time, I get the same error message while trying to use YouTube, while other times the site loads but says that I am offline and no internet connection. I have done all of the fixes that they say to use online and nothing seems to work. YouTube will occasionally work but none of the thumbnails will show up. Then there are other site that work fine.

Since the last FF update (115.5esr, Windows 8.1 Pro) I keep getting the following error message when I try to access one particular website:

The page isn’t redirecting properly An error occurred during a connection to www.doordash.com.

   This problem can sometimes be caused by disabling or refusing to accept cookies.

I have tried virtually all the solutions suggested online. I have cleared my cache, deleted cookies and site data, and I have tried to access the site using Troubleshooting mode, all to no avail. I contacted support for the particular website and they have no difficulty accessing the site with FF.

I can access the site in question with the Chrome browser, so the issue would appear to lie with Mozilla. I use this particular site frequently and would much prefer to continue to access it using it with FF, as I have done for over a year. I just installed Chrome on my Windows 8.1 Pro PC solely for the purposes of accessing this one website.

Help in resolving this issue would be greatly appreciated.

On bootup firefox opens a single window which says the following:

Sorry. We’re having trouble getting your pages back." We are having trouble restoring your last browsing session. Select Restore Session to try again.

The restore function succeeds in restoring 6 windows from the prior session, but this notice keeps appearing on every bootup.

Here are a few relevant details from about: config

• browser.sessionstore.max_resumed_crashes (is set to 1)
• browser.sessionstore.resume_from_crash (is set to true)
• No 3rd party third party cleaning software
• Two extensions, tab stash and tree tabs
• There are no entries in about:crash for this event

Have been using Firefox from 2004 with 5-10 open windows which appear on bootup as they existed from the prior session. This is the first occurance of this error. Appreciate your support. Here are a few system details:

1.) 28gb ram 2.) Linux ~ LMDE 5 (Elsie) 3.) Firefox ESR 115.8 (oesr) 64 bit.

Hello. I don't know which Firefox release broke this essential feature. The problem started after I enabled Aero in my Windows 7 system. It happens often if I have an open tab with https://www.o2tv.cz/ which uses some DRM to play TV content.