Firefox Support Forum

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 ?

For the past several months, I've had increasingly worse graphical errors on Google Drive. At first it was only in a few documents, and now it's in every single document. These errors only occur on Firefox, no other browser. Text that I type is constantly blurry, oddly-sized, or oddly-spaced, with some letters touching while others have large gaps between them. I've also had some other small issues, like the document thinking that I'm two people and asking me if I want to see "the changes made my collaborators" when I'm the one currently typing (the documents aren't shared with anyone else, and there are never any changes beyond the ones I make), or showing my cursor highlighted with my name as if I were someone else watching myself type. It's made it more difficult for me to focus on work and I don't know what to do about it.

I've tried the following methods (most of them multiple times over the past months) to solve it, none of which worked: - Running the windows in safe mode - Uninstalling all add-ons and themes, clearing cookies and cache, and then restarting my computer - Uninstalling Firefox entirely, restarting my computer, then reinstalling it - Refreshing Firefox - Looking through pages like Firefox Task Manager and such (although the information there didn't really mean much to me, nothing looked out of the ordinary)

Does anyone have any ideas about what I can do about this? I was ignoring it for a while since it's still legible, but it's become really annoying, especially when it makes some words hard to read. Thanks in advance for the consideration. Here's a screenshot of a document with the weirdly-spaced, blurry text:

I have this box that shows up over the top of any video application on my firefox browser since my most recent update. It doesn't appear on other browsers. How can I remove it?

Hi.

Using Windows 10. Suddenly, Mozilla gives the "Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window" message. I've tried all steps listed on the help site except reinstalling Windows 10, as the comment made said this would require reinstalling programs that did not come pre-installed on my PC, which I don't want to do if possible. I have uninstalled Mozilla, and the install stalls at about 70% with the aforementioned error message. Any help would be greatly appreciated! Thanks.

My work consists mainly of capturing accounting data online. It is important that the browser warns me if I try to close or navigate away from a page if the data entered has not been saved or updated, but I no longer get these warnings.

Please help.

Is there any to make Firefox automatically restart a new session (loading the start page) after a crash, without any prompts?

Context: This is for a disabled person who cannot use input devices: I start her computer every morning before going to work and load a long Youtube playlist of videos, so she doesn't have to do anything. But if Firefox crashes 5 minutes after I left, she cannot restart anything herself and has to wait until I come back.

Any ideas?

I have an Airris modem router combo that is locked out for to many attempts. I have done a reset and it still wont unlock. I had the same problem wit a bank lockout on your website and i got out of it by accident when I found a security site on fire fox an it was in Preferences and it was listed as do not allow and allow, clicked on allow and that whole mes cleared instantly. did I write this down, no I will remember it SURE . cold you please tell me where it is

This is the third time I've lost all my passwords (and logins) since the beginning of the year. I had over 200 when I lost it the first time. I've entered over 75 since then and today I just lost those. Fortunately, I had a backup of my profile. The old "key4.db" and "logins.json" files I had didn't work, although they have a significant size. In fact, looking at the "logins.json" using VS Code I see the logins are there but they don't display in the "Settings > Privacy & Security". How can I get access to them when this happens again. I was able to restore the profile from several days ago so I'm not completely in trouble.  :-)

Since your latest so called update a few days ago, all I get is the "Secure Connection Failed - An error occurred during a connection to www.youtube.com. PR_END_OF_FILE_ERROR" message when trying to open any pages. Your browser has become less useful than explorer or edge. It's the same message no matter what page is attempted to open.

The Firefox prefs.js file was quarantined by avast yesterday. Message indicated malware had infected the file. Now when I click on the Firefox icon the MSN browser comes up. How can I get back to using Firefox safely? Can I uninstall Firefox, then re-install it to make the problem go away?

Just now, after a massive and catastrophic SUPER-MELTDOWN-crash that arbitrarily decided to absolutely murder my day, ALL my tabs and windows and ALL history of "Recently Closed" tabs and windows is gone!

THIS IS COMPLETELY UNACCEPTABLE!

What is the reason for the existence of a SYNC feature if it isn't to MAKE SURE that a record of open tabs and windows is SECURELY maintained no matter how many times the application crashes, so that AT ALL TIMES, this information is kept INTACT, regardless of the state of the end users device? That is BY FAR the most important part of the sync feature! Are you telling me that there is no backup process of that information?

This is the kind of thing I never expected from you guys at Mozilla. I've been using Firefox for MANY years because I trust what you do. Today that trust has been SEVERELY and BRUTALLY wounded, most likely beyond repair...

I need you to fix this...

I need you to recover that information for me and I need you to make sure that what just happened could never, ever happen again unless God himself caused every digital storage unit on earth to disintegrate.

Hi,

Almost daily, I have to delete cert9.db and restart Firefox, otherwise I can't access some websites, or even web interfaces of local devices on our LAN.

security.enterprise_roots.enabled is greyed out, so I can't change that but it is set to "true", which I believe means that it should be using Windows Cert store and not cert9.db. Yet still, deleting cert9.db is the solution to my issues.

Can anyone advise on what I can do for a more permanent fix?

Thanks,

M

Hi everyone,

Up until the latest FF release, opening an .ics (calendar file) link defaulted to the OS's preferred application; in my case Outlook. Now, every time I click on an .ics link FF asks where I want to save the file. I schedule ZOOM meetings all day and heavily rely on this feature.

I tried looking in FF's Files and Applications section in settings and .ics is not even listed as a file extension. I don't know how to add it.

Any assistance is greatly appreciated.

Jose

I can't login to Lastpass with the latest version of Firefox 98.0.1. Neither the Lastpass extension or attempting to Login to Lastpass via the website will open the password vault. I enter my Lastpass email and password login details then authenticate with 2FA and all I get is the spinning wheel of anticipation which times out after 7 or 8 seconds. MS Edge allows Login and I tried Firefox Ver 98.0 on another PC and Lastpass login works so there appears to be an issue with Ver 98.0.1. Running fully patched Win 10 laptop.

Why, with not very many active open windows, and just after opening, is FF using 175% of my CPU, not counting all the separate listings in my Activity Monitor. Plus it's using nearly all 16 GBs of my RAM. With every new update, I pray it will mean the browser will just work, and not use up all my computer's resources, but it just never does. Pretty soon, more & more of us will just give up on this browser, which used to work better, years ago, and has only gone downhill since.

Greetings. I can't open most sites I usually visit (even google.com) via my Firefox 98.0a1. This happens since today. All error codes are SEC_ERROR_LIBRARY_FAILURE.

Tried to:

• Disable DNS-over-HTTPS.
• Disable HTTP/3.
• Disable proxy (never had it enabled anyway).
• Disable sending info to Firefox developers.
• Change settings of DNS-over-HTTPS.
• Restart the browser (after each action).

Nothing helps me... But I still can visit some websites, but most common resources are not working for me. Please help me because I can't use Microsoft Edge without getting mentally ill. :/

This is a horrible web browser that crashes constantly and is slow as hell. Even Internet Explorer is faster than this, and I am switching to that browser and am never reinstalling Firefox ever again.

On Windows 7, vr 98 was starting in a second. Now vr 99 start in 9 second. On Windows 10, vr 99 start in a second. Will it be fix soon or how can I reinstall vr 98 AND keep my profile?

Hello, I've been unable to access google mail/drive recently, w error code SEC_ERROR_UNKNOWN_ISSUER and certificate issuer CISCO. i don't have any antivirus software, I've tried resetting the proxy, clearing cache, reinstalling Firefox, nothing works. If this continues I'll have to definitely move to another browser - with which I have no problem accessing those sites... Help please? Thanks

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.