Firefox Support Forum

I have two end users that are having a different issues but they are of similar nature. First user can not upload anything to Microsoft Share point. She gets a message that says she does not have proper permissions to upload. She does not have the same issue on Chrome or Edge. The second user is trying to download and or save a file from a couple of different websites but regardless on where she tries to save it on her computer it says she does not have proper permissions to save to "x" file location. She also does not have this issue when she is on Chrome or Edge.

For both users I have tried clearing cache and cookies, Rebooting their computers, uninstalling and reinstalling Firefox, deleting registry keys/user data from the computer itself. I have had no luck with resolving this issue and I can not find anything online that remotely resembles this issue.

Thank you and please advise

UbuntuStudio 22.04 uses the Firefox Snap package by default. The latest automatic update does not display pages correctly in normal mode, but does work correctly on Safe Mode. Snap.io lists only the latest version of Firefox so I was unable to ask snap to revert to the previous release (prior to 5 Mar 24) and by the time I had tried to investigate the previous version was no longer cached. I did not see a way to force a fresh download of firefox from the latest channel on snap.io.

I tried the snap beta channel for v124, but that exhibited the same problems.

I tried adding a symbolic link to colors.css after seeing firefox complaining that it could not be found when started from the command line. That removed the error/warning message but did not clear the problem with normal mode.

I use the en-GB locale extension only. The technical details about my PC are as follows:

• Operating System: Ubuntu Studio 22.04
• KDE Plasma Version: 5.24.7
• KDE Frameworks Version: 5.92.0
• Qt Version: 5.15.3
• Kernel Version: 6.5.0-25-lowlatency (64-bit)
• Graphics Platform: X11
• Processors: 12 × AMD Ryzen 5 7600 6-Core Processor
• Memory: 30.5 GiB of RAM
• Graphics Processor: RAPHAEL_MENDOCINO

I have now downloaded v123 and installed it in my local home directory, and that version is working well. I have removed the firefox channel via snap. It is likely to be a fault in the construction of the snap for v123 that was not present for v122 prior to 5 Mar 24.

Hi,

Occasionally when downloading files on Firefox, they'll freeze completely (often at the very end.) There is no way to pause or cancel the downloads, except to restart Firefox.

When I attempt to restart Firefox, it closes the browser window. However, when I try to reopen it, I get an error message stating that Firefox is running but not responding. The 'Close Firefox' option does nothing, except make the box pop back up a moment later.

I can't kill the Firefox process in Task Manager or Process Explorer, because it says access is denied. I can't kill it using taskkill in command prompt because it says there is no running instance of the task.

The ONLY thing that seems to help is completely restarting the computer, which is getting frustrating to do several times a day.

I can confirm Firefox is up-to-date. Any tips are appreciated, thank you!

PR_END_OF_FILE_ERROR how do I get rid of this error that keeps popping up when I attempt to launch Amazon.com I have never had this happen before..... it just started about a week ago.

When I clicked troubleshooting mode FF unexpectedly closed my Private browsing session and all the tabs. How do I reopen them?

I did not expect FF to close on me like that. I thought that as I was in a private browsing session FF would have warned me that it was about to close had it been necessary.

I'm guessing that my open tabs have been lost permanently because you didn't warn me and that all that time I spent is now wasted.

Life is really simple except that other people make it problematic.

Auto play blocking is no longer working.

media.autoplay.block-event.enabled true media.autoplay.blocking_policy 3 [tried 2] media.autoplay.default 5 [tried values]

Anyone have good values that block auto playing videos?

Had to replace FF with Chrome in order to play DRM content on my W11 laptop. I get message saying you are downloading remedy, but nothing ever changes. Would prefer to continue 15+ year relationship with FF, but seems like youre abandoning capabilities for DRM video content?

It seems like more often lately that in the past. I just tried to post on the Portableapps website, and had all sorts of problems there.

I had to use Chrome to post. Actually, when I went first opened the page in Chrome, I got an alert that six trackers were found, and did i want to disable them.

Perhaps that relates to Firefox and accounts for some of the bad behavior?

I'm getting tired of this. There must be a happy medium between security and unencumbered usage.

Maybe it's one of my apps, i.e. Canvasblocker. It has a ton of settings options, and I don't have a clue what to do with them. Aside from that and Ublock, I don't see any others that fit that category.

Maybe it's something in my browser settings?

Stuck with this hourglass logo on tabs since the latest update v121.0

https://imgur.com/a/k26XOm7

Now what I have noted is that this is causing the pages to load slow. Only ublock extension is installed, tried all dns settings but the result is the same. Is anyone facing the same?

These pages say to change the value and this hourglass thing will be removed

https://support.mozilla.org/en-US/questions/1303416

https://www.reddit.com/r/firefox/comments/igx73s/this_hourglass_icon_on_loading_tabs_in_v80_is/

But I cannot see any option to change the value on that location

https://imgur.com/a/zMRQvka

What to do now?

Many pages are displayed incorrectly. It looks like a mobile version of the site, you can't switch to the full version. In other browsers is displayed normally. Please help to solve the problem, it is impossible to use further.

Good afternoon, We are the developers of a web application and are experiencing issues with the tab constantly crashing in response to a variety of actions performed inside the app. We've spent the day trying to identify and fix the bug, but I'm beginning to think that the issue may be on the Firefox browser side, and not our application. You can check out some of our crash reports (some examples below): bp-4bd3f3b6-7ef5-4915-8fe4-9696b0240207 bp-fd284c7a-a42a-4fd8-a283-d9f3f0240207 bp-9958483b-3c49-402c-8276-928e60240207 bp-7da1af1a-d6db-4533-a5d1-fe4eb0240207

I just removed Firefox from my laptop completely and installed the old version (121.0.1). With that version I could not recreate the problem at all. It did not occur even once, even though I tested all sorts of different actions and scenarios for over an hour. As soon as I updated to the current browser version 122.0.1, the problem is back and the tab keeps crashing. Any idea what might be causing this?

Thank you for your help and best wishes, Anika

Windows 10 Pro v 22H2 Firefox 121.0.1 (64-bit)

I have tried preventing Firefox from autostarting with Windows start up by examining these potential program starting locations:

Firefox-Settings-General: "Open Firefox automatically when your computer starts up": Option not available about:config - toolkit.winRegisterApplicationRestart - set to "false" No listing for Mozilla or Firefox in Windows 10 "Startup Apps" settings page No listing for Mozilla or Firefox in Windows 10 msconfig.exe/System Configuration-Startup No listing for Firefox in Windows 10 Task Scheduler No Firefox program in Windows 10 - %appdata%\Microsoft\Windows\Start Menu\Programs\Startup folder All Firefox extensions (2) are disabled

Where else should I be looking? Thank you

Firefox app on Samsung Galaxy s22 ultra keeps flickering, this occurs 2 out of 5 times when app opened, tried to reinstall app, delete cache, force stop app..but it keeps happening, this seemed to occur after last app update, once the app is force closed and reopened then it responsds normally but once closed and reopened the error is back.

Hello,

I am experiencing a persistent issue with web browsers on my Lenovo Legion T5 26IAB running Windows 11 Home. Regardless of whether I use Mozilla Firefox, the browser frequently crashes. This happens at least once a day, and it seems to be unrelated to the number of tabs open or the specific content being viewed. I did the help -> diagnose mode without plugin and it crashed too, im not sure what this is realted to.

The crashes often present with an error message suggesting a failure in the new tabs or trying to load a old one, despite the fact that my system's RAM usage is typically around 60-70%. I have already updated the BIOS, Lenovo drivers, and NVIDIA graphics drivers, but the issue persists.

I'm seeking advice on what might be causing these browser crashes. Is it possible that there's a compatibility issue with Windows 11 Home? Could it be related to the graphics card or its drivers, even though they are up-to-date? I have not changed the power cable from my old PC; could this be a factor?

Any insights, suggestions, or similar experiences would be greatly appreciated. I'm trying to determine if this is a hardware issue, a driver conflict, or something else entirely.

Thank you in advance for your help.

Hi, I've been using Firefox on all my devices for YEARS without any issues. However, as of recently, I had moved into a new apartment, and with that came a new internet connection, which was very slow since the beginning, but usable.

At first I had assumed that Firefox on my PC was loading websites more slowly because of my poor internet, which was partly the case - however, my laptop and Android phone were on the same network as the PC and were both much faster. So I assumed it had something to do with the differences between WiFi and Ethernet connections - the PC was plugged into the latter while the laptop and phone were using WiFi.

But then I noticed that Firefox was the only program with lacking speeds. Spotify loads video podcasts with no problem, Steam downloads are relatively fast (as much as my network allows), only Firefox took MINUTES to load a simple web site. For example, I tried opening Reddit on my PC to write this post, gave up, and am now writing it on my phone. The Reddit website is still loading on my PC as we speak.

I honestly don't know what could be causing this issue. I checked Task Manager, and Firefox isn't using any more resources than it normally would. I am also using the latest version, I just checked.

Any ideas or fixes? Even diagnosing the problem would go a long way.

Hello, As of today, my computer stopped loading the windows and tabs which I had accumulated with information I was interested in learning more about. I had 15 windows and sometimes up to 20 tabs saved per window. I had been saving and the computer had been loading these for years prior to today. Did something change in Firefox that these have disappeared from my desktop?