Firefox Support Forum

why do you stalk and bother the users? i do not want to update! without warning you alter things i do not want you to alter. you take things out so people have to use risky 3rd party addons.

Is there a Firefox setting that automatically clears cookies? When I turned my computer on, it had been cleared of cookies since the last time I had it on a few hours ago, but I didn't do it. No one else here to use the computer but me. I don't want cookies cleared automatically. How do I change it back to manual? I use Firefox Browser 120.0

thank you

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.

Firefox has been crashing multiple times per day for several weeks now. It used to be fine, hardly ever crashing. I can't think of anything I'm doing differently since before the crashes started. I can only assume that it started after a specific Firefox update. I do have a lot of windows/tabs open at once, but that was never an issue in the past. Occasionally individual pages will crash, usually several at once. The entire software crashes all at once regularly as well. Sometimes the crash seems to cause other issues, such as my computer hanging up for a bit, or my monitors going blank and the graphics system seeming to reset, before Firefox actually crashes. I don't always get a crash report dialogue when the whole thing crashes.

Most recent crash report ID: bp-bd37576c-c5ef-419f-a031-fe1910231123

I keep my Windows and Firefox up to date. I tried turning off hardware acceleration, but I think that might have made it worse so I turned it back on. I cleared the caches (which took well over five minutes), and ran speedyfox a few times. I exit Firefox through File > Exit whenever I need to restart or run other heavy software.

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 have strict tracking protection turned and and i have a rule set for both https and http for bing, yahoo, and some other sites, and no matter how many times i delete their cookies from the settings menu they keep coming back and i have no idea why. I dont see a logical reasons why my extensions would be doing that

Hello, I have been a diehard Firefox user since it was still in Beta. I have been using computers personally since 1994 and professionally since 2004, doing Windows and Linux systems administration. I can and will do whatever (within limits) you need me to do to troubleshoot and resolve this issue, which is otherwise going to cause me to abandon this otherwise excellent browser, perhaps forever. The browser.cache.disk.capacity seems to work, but browser.cache.memory.capacity does not.

Why does firefox not respect the assigned values for browser memory cache (browser.cache.memory.capacity)? Is there anything I can do to limit the memory and processor usage of Firefox and its child processes? Is extension CPU/memory usage constrained by the application values? Is there a way to determine and/or limit the resource usage of extensions?

I have included a number of screenshots documenting its behavior and generated an about:memory report during "normal use". After configuring a number of system variables, I then attempted to determine its resource usage under heavy load.

Open the browser with a couple 2, 3 tabs: ~1GB memory usage Use the browser as "normal" (dozens tabs): ~2GB memory usage Open 100+ tabs from history: The CPU and memory resource usage increases until it consumes all available system resources despite configured values. After killing and restarting the process, the tabs have invisible titles in the extension and browser, and must be closed using Ctrl+W until only a few remain after which the browser can be used normally and again consumes ~1GB.

While I understand "just don't open so many tabs", under some circumstances such as poorly written websites, bugs, etc, even single sites may attempt to claim excessive resources. I sometimes run VMs and such on this machine and in order to retain a responsive system, cannot have applications consuming all of the available resources. I have found one proposed solution that uses an external application, is this the only way?

I am open to allowing Firefox to utilize more of the SSD storage (the 1GB limit was imposed for testing) and would be fine with increased slowness due to disk cache or refetching internetworked resources. However, none of the settings I have changed or attempts I have made appear to be able to limit the memory usage in any way. Additional included screenshots are linked above instead of as attachments due to number. I can share or generate additional reports to assist in troubleshooting.

Thank you! JackD

I recently updated to FF 119.0.1. I am finding that URL completion in the address bar is kind of random. In FF 118 and earlier, URLs were completed predictably, and it was pretty clear that they were based on a) bookmarks and b) frequency of use. Now, it seems like the frequency info is lost every time I restart FF. In that case, I might expect that the URL offered would be from the oldest bookmark or maybe the first in alphabetical order or something predictable, but it isn't. It seems to me to be random, and it is very annoying.

Is this a new bug, or is there perhaps a new setting that I can change to stop the madness?

For relevant settings, I have:

 - Provide search suggestion: checked
 - When using address bar, suggest: browsing history and bookmarks are checked, nothing else
 - I'm using Custom History settings: Remember browsing and download history is checked, Clear history when Firefox closes is checked. 

I have used these settings for years in previous versions of FF, and there hasn't been a problem until now.

Thanks!

We have 2 desktop computers, both on the same wifi internet wireless network. On 1 we can ad the Ublock Origin extension no problem. But except for only 2 times, the other computer says installation aborted because add-on appears to be corrupt. Like I said, we have gotten it to load twice but both times it disappeared and now it won’t load. I’m not sure how it can be a connectivity issue, since they both access the internet from the same source. Is it that the problem system has Window 11 and the other 10? Why would it install twice and then disappear? Note that as a test I have uninstalled Ublock and then reinstalled it no problem on the Windows 10 machine. Does anyone know how to fix this? Thanks.

Suddenly my ISP is HACKING into my browsers to give me "notifications" without my permission (see image), ignoring Firefox settings and UBlock Origin add-on. They appear above whatever website I'm loading. The company has my email address if they need to notifiy me of anything, so this just seems like a giant middle finger - a way to remind me of their absolute control over my computer. It's totally creepy. Is there any way to block them?

My regular profile has deleted all saved history, tabs, bookmarks, etc. This happened before and seems related to having private browings open. and to an update in progress or recent.

Opend a private window. Then noticed regular FF wasn't opened. I opened the usual profile and all saved info is gone. Also, my stuff to be synced is way out of date so can't restore from there (I always had sync up to date). My "backup" can't be opened to restore.

Where do I find yesrterday's info? How do I restore my session, bookmarks, etc?

Last time, I tried to follow directions I found soemwhere but the instruction werent clear at all and had to restore from a disk image.

Why is there stsill the private window deleting regular window?

Malwarebytes www.malwarebytes.com

-Log Details- Protection Event Date: 9/17/23 Protection Event Time: 10:05 PM Log File: e55f632c-55c7-11ee-9964-c0335ec686ce.json

-Software Information- Version: 4.6.2.281 Components Version: 1.0.2131 Update Package Version: 1.0.75413 License: Premium

-System Information- OS: Windows 10 (Build 19045.3448) CPU: x64 File System: NTFS User: System

-Blocked Website Details- Malicious Website: 1 , C:\Program Files\Mozilla Firefox\firefox.exe, Blocked, -1, -1, 0.0.0, ,

-Website Data- Category: Trojan Domain: IP Address: 64.190.63.111 Port: 80 Type: Outbound File: C:\Program Files\Mozilla Firefox\firefox.exe

Is Mozilla Firefox using SEDO GmbH, sedo.com?

-- You can lead a horse to water, but you can't make 'em think!

In my Firefox settings I have selected "check for updates but let [me] choose to install them" but Firefox automatically installs updates while I'm using it and immediately requires me to restart the browser. All navigation thereafter returns a page saying I have to restart Firefox to continue.

It's incredibly annoying to have to then sign in to all half dozen or more sites that I was already signed in to. I'm going to have to abandon Firefox if this continues.

Is it a security setting my employer configured? I think I have the same problem at home.

- Bruce

I have the e-edition app for my newspaper on my PC. This allows me to read an electronic version of our daily paper. One feature of the app is to be able to print parts of the paper such as the crossword puzzle. When selecting to print the selected section, the section displays in a pop-up which it should. However recently when using Firefox the pop-up displays twice. And when printing again, the pop-up opens three times and then four times and then five times. I can get it to print ok from the last displayed pop-up and then I just have to close all the other pop-ups.

When using this app with Google and Edge this does not happen so I was wondering if there is a setting in Firefox that needs to be changed. Turning off pop-ups doesn't help in that I get the same of screens displayed telling me pop-ups have been disabled.

This odd behavior only began a few weeks ago.

Thanks, JB

Firefox seems to be hanging up my computer every once and awhile. Why I think FF, if I am able to kill it with task manager- all is well. Prior to that system is pretrty much locked up, sometimes can't even get task manager running. Also, about twice a week I get a message from FF about oops your Foxnews tab has stopped., please send report. I haven't sent report, just do a reload.

I have run 3 virus checkers, chkdsk and sfc /scannow and all are okay no virus, disk or system files missing.

Thinking of switching browsers for awhile?? Then seems there is a place in profile that has passwords, but I forgot where. Maybe I could download a completely new copy of firefox and keep my profile?? Then again maybe my profile is messed up.

Any suggestions the best way to get a completely new copy of FF??

On Windows 10 current release and now FF 119.0. Down to using Flagfox, Malwarebytes Browser Guard, tab reloader, undo close tab, web threat shield (webroot). Was for years using Noscripts, but stopped it for the last few weeks. Actually I stopped Malwarebytes Browser Guard, web threat shield and noscripts and still got hung up. That only left Flagfox, undo close tab and tab reload running as addons.

This issue started with a (frustrating) set of steps following a page which wasn't displayed (https://www.ziggogo.tv/) - the screen remained black. Refresh solved it but the reinstalled plugins didn't show an icon and did not work at all. I de-installed Firefox, installed some old version from an update, installed all plugins and then updated to the latest version. Now finally everything seems to work- except that the 2nd and next windows show at a quarter of the size compared to the first whchi show correctly. I've tried everything I could think of with xulstore.json in the correct ..\AppData\Roaming\Mozilla\Firefox\Profiles\ subdirectory but nothing helps. I deleted it (which requires you to re-check that you want a menu bar),when I though for a moment it worked, made it read only (which means Firefox makes a .tmp version of it), manually changed the content (e.g. to "main-window":{"screenX":"4","screenY":"4","width":"3840","height":"2048","sizemode":"maximized"}}} matching my 4K monitor but nothing helps. And no, Ctrl click the Close button doesn't help either.

I suspect that it is a (maybe reintroduced) bug in a later build. I don't update often and I haven't seen this issue before.

Anything I can do which I haven't tried?