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Cannot play video

I use firefox 83.0 on Ubuntu 20.04. Browser does not play videos on Twitter, Reddit or Netflix. Youtube plays some videos but some videos show error "your browser does no… (meer info)

I use firefox 83.0 on Ubuntu 20.04. Browser does not play videos on Twitter, Reddit or Netflix. Youtube plays some videos but some videos show error "your browser does not currently recognize any of the video formats available". I cannot find any viable solution. what should I do?

I installed chrome and it plays all the videos. So there must not be any problem in OS.

Gevraagd door anchitxp, 1 jaar geleden

Beantwoord door jscher2000 - Support Volunteer, 1 jaar geleden

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Importing Logins/Passwords

I have a Linux system with Firefox 83.0 installed. I also have a CSV file of logins from an earlier Firefox. How can I import or use this CSV file to move over my login… (meer info)

I have a Linux system with Firefox 83.0 installed. I also have a CSV file of logins from an earlier Firefox. How can I import or use this CSV file to move over my logins/passwords. I wish not to use Sync because it is someone else's machine. Robert

Gevraagd door robweir@telus.net, 1 jaar geleden

Beantwoord door TyDraniu, 1 jaar geleden

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Hmm. We’re having trouble finding that site.

I am facing the problem to open the sites. When I used the network, it show the following error: Hmm. We’re having trouble finding that site. We can’t connect to the serv… (meer info)

I am facing the problem to open the sites. When I used the network, it show the following error:

Hmm. We’re having trouble finding that site.

We can’t connect to the server at www.google.com.

If that address is correct, here are three other things you can try:

   Try again later.
   Check your network connection.
   If you are connected but behind a firewall, check that Firefox has permission to access the Web.

Please let me know your suggestion and comments.

Gevraagd door mchahalrock, 1 jaar geleden

Beantwoord door FredMcD, 1 jaar geleden

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How can I view two tabs side-by-side?

Viewing two tabs side-by-side can be very helpful, for example when copying information across. This used to work in older version using the AddOns tiled=tabs/pages. But … (meer info)

Viewing two tabs side-by-side can be very helpful, for example when copying information across. This used to work in older version using the AddOns tiled=tabs/pages. But in FF76 tiled-pages has very limited functionality and does not work for me for any page that requires javascript - so most pages requiring logins are out.

How can I get this very time-saving functionality back?

Gevraagd door Christians, 1 jaar geleden

Beantwoord door Tommy, 1 jaar geleden

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89.0b2 Revert new tab design

Today I updated my Firefox Developer Edition to version 89.0b2 and now I just can not look at this browser anymore, "Inspired new tab design" is taking too much space and… (meer info)

Today I updated my Firefox Developer Edition to version 89.0b2 and now I just can not look at this browser anymore, "Inspired new tab design" is taking too much space and now became largest and at the same time least information-dense panel in my entire desktop! I searched around the web for a bit in hopes that I will find a theme or an add-on that will revert this particular change but no luck. I really want to revert to old UI look (at least tabs bar), there should be default theme or option to get back to old style. After some investigation I found userChrome.css but don't really want to install it (maybe this is actually the way of doing this kind of styling). Please help me revert UI design to old one.

Gevraagd door PepeTheFrog21, 1 jaar geleden

Beantwoord door Terry, 1 jaar geleden

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All http sites are redirecting to https and display "potential security risk ahead" error

In my browser whenever I am opening non secure sites that are only like http://example.com it redirects to https://example.com and display the error. "Warning: Potential … (meer info)

In my browser whenever I am opening non secure sites that are only like http://example.com it redirects to https://example.com and display the error. "Warning: Potential Security Risk Ahead" error. I could not know how to fix this error. This is happening all of a sudden. I could not find a way to fix this error.

Gevraagd door vpp.nagaraju1234, 1 jaar geleden

Beantwoord door vpp.nagaraju1234, 1 jaar geleden

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Why I get: DOMException: The quota has been exceeded. ?

Hello. I need help with: `DOMException: The quota has been exceeded.` I'm trying to use IndexedDB. However, the code is requesting persistent storage: `await window.navig… (meer info)

Hello. I need help with: `DOMException: The quota has been exceeded.` I'm trying to use IndexedDB. However, the code is requesting persistent storage: `await window.navigator.storage.persist();` (and this is returning true) This website is only storing about 8MB of data and I have a different website storing 200MB of data (userscript) The storage medium still has 140GB available. What quota did I exceed? If this is the wrong place, please direct me to the right place

Gevraagd door brunoais, 1 jaar geleden

Beantwoord door brunoais, 1 jaar geleden

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Udemy is not playing videos

Hi, The version of Firefox 68.9 on Linux CentOS 8.2 has problem playing videos from https://www.udemy.com Testing on macOS and Windows 10 the Udemy Courses are presented … (meer info)

Hi,

The version of Firefox 68.9 on Linux CentOS 8.2 has problem playing videos from https://www.udemy.com Testing on macOS and Windows 10 the Udemy Courses are presented fine. I get dark video.

Gevraagd door joseluisbz, 1 jaar geleden

Beantwoord door James, 1 jaar geleden

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VIDEOJS: ERROR: (CODE:4 MEDIA_ERR_SRC_NOT_SUPPORTED) No compatible source was found for this media on WSHH

When I try to watch a video on WSHH, I get this error VIDEOJS: ERROR: (CODE:4 MEDIA_ERR_SRC_NOT_SUPPORTED) No compatible source was found for this media. I have DuckDuckG… (meer info)

When I try to watch a video on WSHH, I get this error VIDEOJS: ERROR: (CODE:4 MEDIA_ERR_SRC_NOT_SUPPORTED) No compatible source was found for this media. I have DuckDuckGo Privacy Essencials installed, and I also have uBlock Origin installed. I disable both extensions but I still see the same error. I'm on Ubuntu 20.04 LTS, and my Firefox version is 77.0.1 (64-bit) canonical - 1.0

I attach the console log.

Gevraagd door cunha-filipe, 1 jaar geleden

Beantwoord door cor-el, 1 jaar geleden

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How do I stop Firefox from opening links in a new window?

Currently, I'm using Firefox 82.0.2 on Fedora 31. Recently, it's started opening most, but not all links in a new window instead of the current one. Not on all sites, b… (meer info)

Currently, I'm using Firefox 82.0.2 on Fedora 31. Recently, it's started opening most, but not all links in a new window instead of the current one. Not on all sites, but most. As a pair of examples, it opens links to articles on gasbuddy.com in a new window but not on Slashdot, and until a few months ago, it only opened a new window if I right-clicked and selected New Window from the context menu. I'd like to get the old behavior back, as this is quite inconvenient.

Gevraagd door sideburns, 1 jaar geleden

Beantwoord door jscher2000 - Support Volunteer, 1 jaar geleden

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wss websocket stopped working

Today firsfox just stopped connecting to a wss websocket server. It has always worked fine before today and still works in Chrome. What happened??? Port is open. Connect … (meer info)

Today firsfox just stopped connecting to a wss websocket server. It has always worked fine before today and still works in Chrome.

What happened???

Port is open. Connect when running websocket.org/echo.html in chrome but not in firefox

Gevraagd door just-money, 1 jaar geleden

Beantwoord door FredMcD, 1 jaar geleden

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Add ons not working or showing up

I am running Firefox 76.0.1 on GalliumOS 3.1 on a Lenovo N21. For some reason, my add ons don't show up or work, even though they are installed. Firefox works great on … (meer info)

I am running Firefox 76.0.1 on GalliumOS 3.1 on a Lenovo N21. For some reason, my add ons don't show up or work, even though they are installed. Firefox works great on my other two machines, and used to work great on this one. Thank you Jason Stone.

Gevraagd door jasonstone20, 1 jaar geleden

Beantwoord door AKASH kUMAR, 1 jaar geleden

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Firefox block autoplay not working, preferences are showing "Block Audio and Video"

Hi there! I have been having trouble with Firefox continuing to autoplay videos even with preferences set to "Block Audio and Video." If I go to twitter.com or elsewhere … (meer info)

Hi there!

I have been having trouble with Firefox continuing to autoplay videos even with preferences set to "Block Audio and Video."

If I go to twitter.com or elsewhere Firefox will show that auto play is disabled, but videos will autoplay with no audio. I would just like to get this feature working as autoplaying videos are incredibly annoying!

Thanks for any help!

Firefox 72.0.1

Gevraagd door GuyManSir657438, 2 jaar geleden

Beantwoord door cor-el, 2 jaar geleden

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Hide tab bar when only one tab open.

Hello, I am looking for a way to hide my tab bar when there is only one tab open. I almost found the solution there: https://support.mozilla.org/en-US/questions/1297983 B… (meer info)

Hello,

I am looking for a way to hide my tab bar when there is only one tab open. I almost found the solution there: https://support.mozilla.org/en-US/questions/1297983 But it is not exactly what i am looking for. This solution hides the tab but not the tab bar it self. I mean it leaves some black empty space because i use dark theme.

I kept looking for a solution to hide the container. I found this one: https://support.mozilla.org/en-US/questions/1271391 The problem is: this solution hides all the time the tab bar. No maters how many tabs opened.

I experimented mixing these two solution. I have try:

  1. tabbrowser-tabs tab[first-visible-tab="true"][last-visible-tab="true"] + #mainwindow:not([tabsintitlebar="true"]) #TabsToolbar {
 visibility: collapse;

}

I tried the other way around, with "#mainwindow" first. I tried without the "+" sign. But none worked out.

Gevraagd door Gregory-F, 1 jaar geleden

Beantwoord door jscher2000 - Support Volunteer, 1 jaar geleden

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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'… (meer info)

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.

Gevraagd door mt3ch, 1 jaar geleden

Beantwoord door cor-el, 1 jaar geleden

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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… (meer info)

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

Gevraagd door Nafeesa, 1 jaar geleden

Beantwoord door cor-el, 1 jaar geleden

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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 … (meer info)

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

Gevraagd door Lucas Zanella, 11 maanden geleden

Beantwoord door cor-el, 10 maanden geleden

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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 … (meer info)

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?

Gevraagd door sideburns, 1 jaar geleden

Beantwoord door cor-el, 1 jaar geleden

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Can't watch live videos on you tube

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 doe… (meer info)

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.

Gevraagd door tradeenterprisesolution, 1 jaar geleden

Beantwoord door jscher2000 - Support Volunteer, 1 jaar geleden

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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" <… (meer info)

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)

Gevraagd door Gresthol, 1 jaar geleden

Beantwoord door FredMcD, 1 jaar geleden