Firefox Support Forum

iam currently using acer nitro 515-52 with ubuntu 18.04 as my base os and whenever i try to access the live videos on you tube the following error occurs "our browser does not currently recognize any of the video formats available. Click here to visit our frequently asked questions about HTML5 video". I have only browsec plugin installed on my extensions. I even tried to reinstal my firefox but the same error occurs. kindly suggest me an article so that i can overcome this issue.

My ISP is Plusnet. When I try to access their website using Firefox browser I get the following error:

=====

Secure Connection Failed

An error occurred during a connection to webmail.plus.net. Cannot communicate securely with peer: no common encryption algorithm(s).

Error code: SSL_ERROR_NO_CYPHER_OVERLAP

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the web site owners to inform them of this problem.

=======

I have reported the problem to Plusnet but they say 'not our problem'. Their reason being that the problem does not occur using Google Chrome.

Can you help please?

After installing the DRM content through the browser I still cannot play any videos on Netflix or Udemy.

I have run this website (https://www.jeffersonscher.com/sumo/html5-video.html) from previous answers to check and the results are attached to the question.

I have also checked media.eme.enabled and it is set to true.

I am very much puzzled by this.

So the problem is that Firefox doesn't play any HTML5 content. Weirdly except for Youtube. Youtube works just fine. But every other Website shows errors. Even songsterr.com. I'm using latest Firefox 76.0.1 on a recent Ubuntu 20. 04 LTS installation. Usual troubleshooting like updates doesnt work because "sudo apt-get upgrade" doesn't find any updates. I tried the same websites in the latest version of Chromium and they work perfectly fine. I couldn't find a mistake in the firefox settings or something so I'm confused. Disabling Plugins didn't change anything and turning of tracking protection didn't either. What is the Problem here and how can I solve it?

I was following this reddit thread on how to remove the "your camera and microphone are being shared" popup, but it's having no affect.

I have set `toolkit.legacyUserProfileCustomizations.stylesheets` to true.

Here's the full contents of the userChrome.css file: ```

@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");

#webrtcIndicator {
  display: none;
}

```

Hello,

I have a weird issue with firefox, it shows icons incorrectly on some webpages like magnifying glass icons and arrows, but it shows text instead of icons. a wrong image. a correct image.

Per the title, webgl suddenly stopped working a couple days ago. The error seems to be:

WebGL creation failed: * WebglAllowWindowsNativeGl:false restricts context creation on this system.

I'm on Ubuntu 21.04 (X, not wayland) with an nvidia graphics card. The "share data" below seems comprehensive, but let me know if any other info will help.

Hi! I'm trying to import my passwords from Chrome and I can't because there isn't the option, like it is described in this tutorial. https://support.mozilla.org/en-US/kb/import-login-data-file

What can I do?

Curious if anyone else has seen this. Within the last few days I have encountered a problem with images not being displayed. The most recent incident is an HTML-formatted e-mail being displayed in the Comcast web mail interface. If I right-click on the space for the image and select View Image Info, the pop-up also fails to display the image, but if I copy the image location into the address bar of an empty Firefox window and hit Enter, the image displays correctly.

This happens infrequently, and I haven't been able to find anything that connects the occurrences. Nothing that appears related in the web console.

Running Firefox 77.0.1 on Ubuntu 18.04.

I upgraded SuSE leap 15.1 to 15.2 two days ago and still can't play videos or live streams on most of websites. Works only on youtube and rumble. On twich, netflix,odysee and several others is no go. With other web browsers is just a same, I tried Cromium and Opera I have and love Firefox 78.10.0, ffmpeg is installed , Leap is updated via Yast ... what is that I'm forgetting?

Thanks,

I am using Multi-Account Containers, and am unclear on how it interacts with the other cookie and storage management features of the browser. If I clear cookies from Preferences -> Privacy & Security -> Cookies and Site Data -> Clear Data, does that clear all cookies in all containers, or just in "No Container"? Is there a way to delete/manage cookies within just a single container? Is there a way to delete/manage cookies for just "No Container"? Is there a plugin to help with this, or a manual means of editing cookies (editing text file or sqlite database)?

I'm running Ubuntu 20.10 with GNOME Shell extension Unite which can add the minimize, maximize and close buttons to the top bar and remove the buttons from the title bar of apps. The does not work in Firefox, minimize, maximize & close remain. I'm assuming this is related to Firefox's ability to remove the title bar all together so tabs can be at the top. The Firefox Customize... page allows you to change just about everything else in the UI except these three buttons.

Is there a way to remove Firefox's minimize, maximize and close buttons?

In case it matters I really only care about the Close button (not Close tab) because GNOME Tweaks lets you remove the minimize & maximize buttons from all apps.

Thanks

Hi all, I have an Apache site on Kubuntu 20.04 with a certificate signed by my private CA. I've added the root CA ceritificate in Firefox and in Chromium.

Firefox throws a SEC_ERROR_BAD_SIGNATURE error

Chromium accept the certificate as valid

What can I do?

Notes: the site url is "https://hdev.h.net" (with an internal IP address inside my lab)

Attached there are:

- the authority settings page
- the certification authority certificate as seen by Firefox
- the site certificate

Firefox version 82.0 Ubuntu Chromium version 86.0.4240.11

Searching everywhere and cannot find a solution. Perhaps there is none. Followed suggestions here: https://support.mozilla.org/en-US/questions/1297345 in an attempt to increase width of scroll bar but see that just reproduces the default setting.

So the question stands: how to increase width of scroll bar?

The scroll bar is super thin.

Any suggestions for Ubuntu 20.04.1 LTS Firefox 82.0 (64-bit)

Thanks.

Hi, I faced the problem with Youtube recommendations on a video page. When I watch a video I can't see recommendations, comments and video title (see the image). In console i get an error: Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://googleads.g.doubleclick.net/pagead/id. (Reason: CORS request did not succeed).

I am on arch linux system.

I've tried to: 1. Update all ca-certificate* packages 2. Disable and delete ad-block 3. Use another browser (there is no problem, only in firefox)

This problem is only actual on Youtube for me.

Hi,

Firefox 84.0.1 (64-bit) on Linux Mint 18.3

I have the 'Use the address bar for search and navigation' option selected in settings but when I enter a search all I get is 'Hmm. That address doesn’t look right. Please check that the URL is correct and try again.'

Any ideas please?

I am trying to add my own background to the home page but cannot find any way to do it. There must be an option for something so simple somewhere, but I cannot find it. I do not want to install an add-on for this as I am not comfortable handing out my personal info to some random guy or group to accomplish something so simple. Thanks.

https://support.mozilla.org/en-US/kb/containers seems to suggests that it's possible to hide all tabs in certain containers, but does not explain how to do that.

"Hide and Show: Assume you use your browser for both Work and Personal tasks. When you come home at the end of the day, you don’t want to be thinking about “Work” anymore, but your browser is full of Work tabs. You can “Hide” your Work tabs and proceed with your Personal tasks. Then the next day, when you are back at work, you can “Hide” your Personal tabs and “Show” your Work tabs."

On an aside, I'm also getting pretty confused between collections (mobile), containers (desktop), sessions, tab groups, etc... they all seem to have overlapping but different functionality.