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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… (மேலும் படிக்க)

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 1 வருடத்திற்கு முன்பு

Answered by cor-el 1 வருடத்திற்கு முன்பு

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New CSS styles not picked in Firefox.

I am building a website and, for the last couple of days, when I make changes to the CSS file they are no longer being picked up by the browser by which I mean they aren'… (மேலும் படிக்க)

I am building a website and, for the last couple of days, when I make changes to the CSS file they are no longer being picked up by the browser by which I mean they aren't displayed in the web page nor in the developer tools inspector.

They are visible in Chromium browser and dev tools.

I have cleared the cache and refreshed the page to no avail. It is only when I restart the browser that the new style rules take effect in the browser and show up in the dev tools.

Asked by mt3ch 1 வருடத்திற்கு முன்பு

Answered by cor-el 1 வருடத்திற்கு முன்பு

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Getting search results to open in a new tab instead of the current one

I've been using Firefox for many years, and search results have always opened in a new tab by default. Now, with Firefox 81.0.2, they're opening in the current tab, and … (மேலும் படிக்க)

I've been using Firefox for many years, and search results have always opened in a new tab by default. Now, with Firefox 81.0.2, they're opening in the current tab, and I can't figure out how to get back the old way. Does anybody know?

Asked by sideburns 1 வருடத்திற்கு முன்பு

Answered by cor-el 1 வருடத்திற்கு முன்பு

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Is widevine Content Decryption Module (CDM) addon not available for firefox on raspberry pi 4?

I recently installed some linux distributions on the raspberry pi 4 including firefox. In contrast to the same os/firefox combination running on my (10 years old) laptop … (மேலும் படிக்க)

I recently installed some linux distributions on the raspberry pi 4 including firefox. In contrast to the same os/firefox combination running on my (10 years old) laptop pc, no widevine Content Decryption Module (CDM) addon seems to be available. This means starting of videos from respective sources after proper login does not take place. (I am sorry for the English)

Asked by Carsten 1 வருடத்திற்கு முன்பு

Answered by cor-el 1 வருடத்திற்கு முன்பு

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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 … (மேலும் படிக்க)

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 வருடத்திற்கு முன்பு

Answered by cor-el 1 வருடத்திற்கு முன்பு

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Firefox Lockwise doesn't show "Import from file" or "Import from another browser" options

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/… (மேலும் படிக்க)

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?

Asked by jjpv151088 1 வருடத்திற்கு முன்பு

Answered by cor-el 1 வருடத்திற்கு முன்பு

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How do I change the font for my menu and toolbar?

Hello, I am a dyslexic user and I am trying to change the font of my menu to open-dyslexic, however i cant figureout how and most of the answers here only answer for chan… (மேலும் படிக்க)

Hello, I am a dyslexic user and I am trying to change the font of my menu to open-dyslexic, however i cant figureout how and most of the answers here only answer for changing the size, but not the actual font for the menu bar. How do I change the font of my tabs, bookmarks, and ect? thank you

Asked by Nafeesa 8 மாதங்களுக்கு முன்பு

Answered by cor-el 8 மாதங்களுக்கு முன்பு

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Firefox does not load any pages or settings or login for firefox account

Hi everyone, Thanks a lot for taking time reading this! :) I have the following problem with my firefox on Kubuntu 20.04 on my laptop: since a couple of weeks, firefox op… (மேலும் படிக்க)

Hi everyone,

Thanks a lot for taking time reading this! :)

I have the following problem with my firefox on Kubuntu 20.04 on my laptop: since a couple of weeks, firefox opens normaly after rebooting, remembered all tabs and my firefox account etc., but it's just not loading anything. I can still type in a web adress or something in the search, I can also still select the drop-down menu on the right ("Open menu") and select e.g. "Settings", but nothing happens afterwords. Same problem for all websites. Some of the main buttons are also not functional (refresh, back/forward). I attached a screenshot from the "empty" firefox (but not sure if that's of any help anyways ;) ).

I tested a couple of things so far, nothing helped:

1) Internet is working, I tested ping, apt is working as well as a differnt browser I installed now).

2) I reinstalled firefox completely by running the following commands:

      sudo apt update
      sudo apt purge firefox // sudo apt --purge autoremove firefox
      sudo rm -rf .mozilla
      reboot
      sudo apt update
      sudo apt install firefox
      (Since I removed the profile folder, the standard tab and bookmarks open/show after starting firefox now, as expeced. I'm also not longer logged in.)

3) By starting firefox via the console, no error messages were shown

4) I created a second ubuntu unser profile, to test if firefox would work there: it doesn't

5) Since I have a dualboot with Win10/Kubuntu 20.04, I started Windows and tested firefox there: it is working as usual.

6) I also obviously tried to google this problem, but either I put the wrong keywords in or this problem is pretty unique/new?

If you need any further information on my system, I'm happy to provide them! Thanks a lot for any recommendations and further ideas, what to do! I'm pretty much desperate for a solution by now, as during home office a not well working system is a pain! ;)

Thanks and stay safe, Katrin

Asked by Kaddi 9 மாதங்களுக்கு முன்பு

Answered by TyDraniu 9 மாதங்களுக்கு முன்பு

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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 வருடத்திற்கு முன்பு

Answered by ARMAN KHAN 1 வருடத்திற்கு முன்பு

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firefox snap 89.0, to play video, you need to install the required video codecs

On ubuntu 20.04, the snap version of firefox can't play some videos. Some youtube videos will play but streams won't, and then I get the message "to play video, you need … (மேலும் படிக்க)

On ubuntu 20.04, the snap version of firefox can't play some videos. Some youtube videos will play but streams won't, and then I get the message "to play video, you need to install the required video codecs". On telegram web and tweetdeck I also get this message while trying to play some video.

Since it's a snap, nothing I do on my system will solve the problem, I cannot install any codecs.

It's firefox 89.0

Asked by Lucas Zanella 7 மாதங்களுக்கு முன்பு

Answered by cor-el 6 மாதங்களுக்கு முன்பு

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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… (மேலும் படிக்க)

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 வருடத்திற்கு முன்பு

Answered by jonzn4SUSE 1 வருடத்திற்கு முன்பு

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Doesn't show iframe content correctly

Hi, Since months I'm struggling with this issue but today I became unable to bear any more. Many websites works fine with Chrome while don't with Firefox because of ifram… (மேலும் படிக்க)

Hi,

Since months I'm struggling with this issue but today I became unable to bear any more.

Many websites works fine with Chrome while don't with Firefox because of iframe issue. As shown in this link you can read the story fine under Chrome while sucks with Firefox so I wonder:

How can I bypass this issue? Is there some kind of CSS manipulation for run this kind of content fine (I run some websites locally so Firefox always sucks with iframe)?

NOTE: See the attached please

Asked by mbnoimi 1 வருடத்திற்கு முன்பு

Answered by Wesley Branton 1 வருடத்திற்கு முன்பு

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Some images fail to display.

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… (மேலும் படிக்க)

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.

Asked by Darrell 1 வருடத்திற்கு முன்பு

Answered by Darrell 1 வருடத்திற்கு முன்பு

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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… (மேலும் படிக்க)

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 வருடத்திற்கு முன்பு

Answered by cor-el 1 வருடத்திற்கு முன்பு

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Error code: SEC_ERROR_UNKNOWN_ISSUER on Linux

Surfing https://www.asimmetrie.it/ on Firefox 77.0.1 (64-bit) Linux produce SEC_ERROR_UNKNOWN_ISSUER while no error occurs on Windows. Standing on https://www.ssllabs.com… (மேலும் படிக்க)

Surfing https://www.asimmetrie.it/ on Firefox 77.0.1 (64-bit) Linux produce SEC_ERROR_UNKNOWN_ISSUER while no error occurs on Windows. Standing on https://www.ssllabs.com/ssltest/analyze.html?d=www.asimmetrie.it Linux is correct because the server's certificate chain is incomplete

Asked by eziogale 1 வருடத்திற்கு முன்பு

Answered by cor-el 1 வருடத்திற்கு முன்பு

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Cursor goes to address bar instead of search bar

In Ubuntu 18.04, I bring up a new page, click in the search bar in the middle of the page. Then when I start typing it jumps to the address bar although I have already pl… (மேலும் படிக்க)

In Ubuntu 18.04, I bring up a new page, click in the search bar in the middle of the page. Then when I start typing it jumps to the address bar although I have already placed and preferred the search bar to the right. No! NO! NO!

I use Duck Duck Go but Google does the same.

It is bad enough that the upgrade was automatically loaded but on top of that, changing preferences including dumping my home page. Change privacy settings without asking ( to a lower level on top of that ).

Really POOR form.

Asked by dee3 7 மாதங்களுக்கு முன்பு

Answered by jscher2000 7 மாதங்களுக்கு முன்பு

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Firefox not displaying icons on some webpages correctly like magnifying glass icons?

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 wron… (மேலும் படிக்க)

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.

Asked by speedery 1 வருடத்திற்கு முன்பு

Answered by ARMAN KHAN 1 வருடத்திற்கு முன்பு