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Firefox doesn't support HTML5 while other Browsers do. Latest Ubuntu 20.04. LTS

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.c… (read more)

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?

Asked by wauwufflp 2 years ago

Answered by cor-el 2 years ago

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Firefox throws SEC_ERROR_BAD_SIGNATURE error for a site but Chromium says certificate is valid

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 … (read more)

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

Asked by m.busico 1 year ago

Answered by cor-el 1 year ago

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userChrome.css does not seem to be getting applied.

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.legacyUserProf… (read more)

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;
}

```

Asked by SirFireball 1 year ago

Answered by cor-el 1 year ago

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82.0 scroll bar too thin

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… (read more)

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.

Asked by jeffschips 1 year ago

Answered by jeffschips 1 year ago

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Firefox hangs Ubuntu 20.04

After installing Ubuntu 20.04 LTS Clicking on Firefox or Thunderbird it hangs the computer and have to switch off the computer on main switch. Reinstall Mozilla once but … (read more)

After installing Ubuntu 20.04 LTS Clicking on Firefox or Thunderbird it hangs the computer and have to switch off the computer on main switch. Reinstall Mozilla once but no difference still hangs Ubuntu. Need help on this one Thank you

Asked by Lumaja 1 year ago

Answered by schnrl 1 year ago

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Manage cookies in a container

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 Pre… (read more)

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)?

Asked by pavon 1 year ago

Answered by cor-el 1 year ago

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Firefox is not opening correctly

Hi today I opened my linux installation and Firefox is only getting a window with the text: <toolbarbutton id="UITourTooltipClose" class="close-icon" <… (read more)

Hi today I opened my linux installation and Firefox is only getting a window with the text:

             <toolbarbutton id="UITourTooltipClose" class="close-icon"
</pre>

I tried to run from the console with the --MOZ_LOG_FILE flag and the generated file has absolutely no text in it.

Some information about my system: kernel: Linux localhost.localdomain 5.7.7-1-default #1 SMP Wed Jul 1 19:03:27 UTC 2020 (cba119b) x86_64 x86_64 x86_64 GNU/Linux

OS: openSUSE 20200715

DE: KDE 5.72.0 / Plasma 5.19.3

Version: 78.0.2-1.1 (according to zypper info MozillaFirefox command)

Asked by Gresthol 1 year ago

Answered by FredMcD 1 year ago

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Remove the minimize, maximize, and close buttons

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 … (read more)

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

Asked by Elias K Gardner 1 year ago

Answered by Elias K Gardner 1 year ago

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No compatible source was found for this media.

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… (read more)

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,

Asked by cmdr.glenel 1 year ago

Answered by cmdr.glenel 1 year ago

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DRM content won't play

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/htm… (read more)

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.

Asked by Alex 1 year ago

Answered by jonzn4SUSE 1 year ago

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Youtube CORS error

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 conso… (read more)

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.

Asked by Yuudai 1 year ago

Answered by cor-el 1 year ago

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How can I make DuckDuckGo my default search engine?

I have searched & searched and read & read and have not found Joy. I followed the Firefox DDG install instructions at duckduckgo.com (which succeeded and now that… (read more)

I have searched & searched and read & read and have not found Joy.

I followed the Firefox DDG install instructions at duckduckgo.com (which succeeded and now that it's succeeded can't be duplicated), and here: https://www.linuxmint.com/searchengines/anse.php?sen=DuckDuckGo (which doesn't work), but here: 'Preferences' > 'Search' > 'Default Search Engine' DuckDuckGo doesn't appear in the drop-down list. Help!

Asked by Mark Filipak 1 year ago

Answered by cor-el 1 year ago

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Firefox no Xorg

How do I run Firefox on Xorg without installing window manager on linux I'm testing on ubuntu minimal Is this the one? X DISPLAY =: 0 firefox

Asked by jadsom-2001 1 year ago

Answered by ARMAN KHAN 1 year ago

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Completely disable Firefox update on Ubuntu

I am using Firefox on an old Ubuntu machine, and found myself unable to disable the auto update feature of Firefox. I understand why Firefox wants to do auto update, but … (read more)

I am using Firefox on an old Ubuntu machine, and found myself unable to disable the auto update feature of Firefox. I understand why Firefox wants to do auto update, but for me personally it's negatively impacting my productivity. Many times I was looking up reference materials only to be told that I need to restart Firefox because it just updated itself. Imagine how frustrating it is, especially when I use the Private Browsing mode a lot to avoid having to clean up browsing history and cached files later. All in all, while the auto update feature might be good for some users, it's just not working for me, so I want it to be disabled.

I tried a couple of things. First, there's nothing in the "Preferences" page related to the auto update. Second, I tried to change the value of "app.update.auto" in the "about:config" page to false, and it still does auto update. Finally, I tried to add a "policies.json" file to "/etc/firefox/", with the following content:

{ "policies":

  {
    "AppAutoUpdate": false,
    "DisableAppUpdate": true,
    "DisableTelemetry": true
   }

}

Yet it still does auto updates. As a matter of fact, it updated itself to version 80 just now. This driving me crazy. Any useful suggestions will be sincerely appreciated.

Asked by dev.1one.w01f 1 year ago

Answered by dev.1one.w01f 1 year ago

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WebGL stopped working after the Firefox 88 upgrade

Per the title, webgl suddenly stopped working a couple days ago. The error seems to be: WebGL creation failed: * WebglAllowWindowsNativeGl:false restricts context creatio… (read more)

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.

Asked by john588 1 year ago

Answered by cor-el 1 year ago

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Firefox 91 Linux - WebGL stopped working

WebGL has stopped working. I think this has happened with Firefox 91. For example, http://webglsamples.org/aquarium/aquarium.html gives the error Status: WebGL creation f… (read more)

WebGL has stopped working. I think this has happened with Firefox 91.

For example, http://webglsamples.org/aquarium/aquarium.html gives the error Status: WebGL creation failed: * tryNativeGL () * Exhausted GL driver options. (FEATURE_FAILURE_WEBGL_EXHAUSTED_DRIVERS)

I'm running Firefox on Debian on ChromeOS.

On about:support, WebGL 1 Driver Renderer: Red Hat -- virgl WebGL 2 Driver Rendered: Red Hat -- virgl

There are no WebGL errors in about:support

I've tried the Troubleshoot Mode but that made no difference.

Asked by Rob 10 months ago

Answered by Rob 9 months ago

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"full window" mode

There is a fullscreen mode that prints a window over the full size of the screen without showing toolbars/navigation/extensions... Is there a "full window" mode that do t… (read more)

There is a fullscreen mode that prints a window over the full size of the screen without showing toolbars/navigation/extensions... Is there a "full window" mode that do the same, but over the full size of a window? It would be a simple webview in a system window but without the control toolbars. It would be very useful when tiling several Firefox windows without wasting space for toolbars/tabs... This mode should be specific for a window since I do not want to loose the controls on the main screen-wide window.

[attached image is a sketch of what I'm looking for]

Asked by Hugo Trentesaux 1 year ago

Answered by TyDraniu 1 year ago

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Address Bar Search Not Working

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 … (read more)

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?

Asked by caned_monkey 1 year ago

Answered by jscher2000 - Support Volunteer 1 year ago

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pulseaudio high CPU with no audio playing

Hey there, I have the following issue with Firefox, is this maybe something I should report to the Ubuntu support or directly to Bugzilla? Steps to reproduce: --- Open … (read more)

Hey there,

I have the following issue with Firefox, is this maybe something I should report to the Ubuntu support or directly to Bugzilla?

Steps to reproduce: ---

  1. Open Firefox
  2. Go to a page that contains an embedded video that is not playing automatically, e.g. https://www.rottentomatoes.com/m/sound_of_metal
  3. Do not play the video

Environment --- User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:83.0) Gecko/20100101 Firefox/83.0 Firefox version: 83.0 (64-bit) pulseaudio version: 13.99.2 OS: Ubuntu 20.10 64-bit Gnome version: 3.38.1 Windowing system: Wayland CPU: Intel® Core™ i7-8565U CPU @ 1.80GHz × 8 RAM: 15,5 GiB GPU: Mesa Intel® UHD Graphics 620 (WHL GT2)

Actual results --- pulseaudio process is spawned and rapidly becomes the most CPU consuming process on my machine (especially after a few seconds, when the Web Content ones start to cool down). Even though no sound is actually played! When switching to another tab with no embedded video, pulseaudio keeps overloading the CPU. This only stops after closing Firefox.

Expected results --- I'm not sure this is what should be expected, but I'll give it a shot:

  • pulseaudio process should only be spawned when actually playing a media that requires audio
  • pulseaudio should not be the #1 CPU consuming process
  • pulseaudio process should at the very least not massively use CPU when no sound is playing

Asked by yarma22 1 year ago

Answered by jonzn4SUSE 1 year ago