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Compatibility: an increasing number of websites and features do not work in Firefox on Linux

I believe everyone has a right to choose the browser and operating system they use. I choose to use Firefox because I care about my privacy, and because of features like … (read more)

I believe everyone has a right to choose the browser and operating system they use. I choose to use Firefox because I care about my privacy, and because of features like multi-account containers - as a software developer these are non-negotiable. I choose to use Linux for similar reasons, and many Linux distributions come with Firefox preinstalled as a default browser. In light of recent changes to Google's data collection through Chrome, I am more than ever committed to using Firefox as my only browser.

However over the last year or so, I have noticed an increasing number of websites or features on websites have stopped working in Firefox on Linux, forcing me to use Chrome against my wishes. Examples include the entirety of the Australian government's MyGov website; the phone call feature in Slack; and Google Meet meetings (no audio). I know people who use Firefox on other operating systems and they have not had these problems, so I can only assume that the issue is specific to Firefox on Linux.

I am not trying to suggest that Mozilla is responsible for this in any way - if Google or Slack or the government refuse to support Firefox on Linux, that's their responsibility, not Mozilla's. However, I am not convinced that the lack of support is intentional, or that it isn't a quirk of the particular Linux distribution I use or the version of Firefox included in the package manager. Any advice would be appreciated.

My Firefox version is 84.0.1, and my Linux distribution is KDE Neon User Edition 5.21 which uses Ubuntu 20.04 under the hood.

Asked by loathgrim 1 day ago

Last reply by cor-el 56 minutes ago

Default Property Values Not Showing On Firefox Dev Edition

Firefox Dev Ed is a great browser for web development and tweaking CSS. But sadly it does not always show default property values. A classic example of this is the elem… (read more)

Firefox Dev Ed is a great browser for web development and tweaking CSS. But sadly it does not always show default property values.

A classic example of this is the
    element's default padding-left property. This apparently is set at 40px automatically unless overridden by the web designer. I think that ALL inherited or default properties of elements ought to be clearly shown in the inspect tool's styling listings. You could spend hours maddeningly trying to find the cause of some of these offsets to what you expected to display. The curious thing is that some inherited or default property values are shown on the inspect tool - which leads us to assume that what is seen on inspect is all that there is . . . This change should not be too difficult to implement. And it would be a great thing to have when searching down unexpected behaviour in webpage displays.

Asked by tamjk 4 hours ago

Gaps in History

Long story short, I have gaps in my history in Firefox. I'm on the latest stable desktop version, but this happens both on Linux (Ubuntu 20.04) and Windows 10. I can't r… (read more)

Long story short, I have gaps in my history in Firefox. I'm on the latest stable desktop version, but this happens both on Linux (Ubuntu 20.04) and Windows 10.

I can't really pin down what causes this, it seems totally random. Every now and then, I'll be browsing, close the browser, realize I need to do something on a page I was recently on, I relaunch, press "ctr+h", go to the 'Today' drop down tab, and the most recent entry is multiple hours old, in some cases it's not even from the same day. The pages I was just on are nowhere to be found.

I would guess it's just late to update the history, but then there are times where I'll go through my history from a few days ago looking for a specific page I know I visited, and I'm able to find some but not all. Again, it just seems like there are random gaps in my history.

Asked by kieranmgarden 5 hours ago

Why is any sites not propery loaded

Whenever I want to visit some websites the sites get opened but not properly the content of sites are loaded with some random digits. I am using Firefox On Kali Machine, … (read more)

Whenever I want to visit some websites the sites get opened but not properly the content of sites are loaded with some random digits. I am using Firefox On Kali Machine, Other Browser like Google Chrome works properly I have attached image for better understanding so please look up.

Asked by bajgainmanoj3 8 hours ago

Short key on context menu [Q] how is this supposed to work?

See attached picture. Am I right to assume the (Q) next "Inspect Element" is a shortcut key? If yes, how does this work? pressing the Q-key on my keyboard does nothing. … (read more)

See attached picture. Am I right to assume the (Q) next "Inspect Element" is a shortcut key? If yes, how does this work? pressing the Q-key on my keyboard does nothing. Please clarify.

(Mozilla FireFox 87.0 on Fedora 33)

Asked by theking2 10 hours ago

Last reply by timo16 10 hours ago

Restore all Firefox windows and tabs after closing

Hello, I would like to close all Firefox windows (to free up RAM) and then be able to restore all windows with their tabs without leaving the session. Is it possible ? Th… (read more)

Hello, I would like to close all Firefox windows (to free up RAM) and then be able to restore all windows with their tabs without leaving the session. Is it possible ? Thanks.

Firefox 87.0 Kubuntu 20.04.2 LTS

Asked by Pierre 22 hours ago

Last reply by cor-el 22 hours ago

why is the "find-in-page" function broken? (random occurence. reload may solve it. restart will solve it)

See the attached screenshot. the function is mostly useless as-is now. This is on Firefox 87 Manjaro 21 (Linux) Default theme is used. According to https://www.reddit.co… (read more)

See the attached screenshot. the function is mostly useless as-is now.

This is on Firefox 87 Manjaro 21 (Linux)

Default theme is used.


According to https://www.reddit.com/r/firefox/comments/8k3sq4/firefox_updated_to_6001_and_the_search_box_is_no/ there's something wrong with userchrome.css in the profile but that file should be patched if that's the case.

Why this hasn't been patched since it's introduction in version 60 is beyond me.

Asked by ExileFox 1 day ago

Last reply by cor-el 22 hours ago

"Security Error: Your session has been invalidated" https website doesn't load

Following website "https://www.hellobank.fr" is unreachable either in normal or private windows. There is another report but it is pretty old for now. https://support.mo… (read more)

Following website "https://www.hellobank.fr" is unreachable either in normal or private windows.

There is another report but it is pretty old for now. https://support.mozilla.org/en-US/questions/1025002

So I just want to understand is there is anything new since this post or do I have to apply a more efficient solution that removing user.js I don't want to take the risk of spoiling up my setup.

Asked by Clément 1 day ago

Last reply by cor-el 22 hours ago

firefox.ocm => firefox.com . Without asking me. Without notifying me.

When I type in ANY URL, I want exactly that to be loaded. And not anything else. When I type in mozilla.rog into the address bar, I want firefox to fetch the page mozilla… (read more)

When I type in ANY URL, I want exactly that to be loaded. And not anything else.

When I type in mozilla.rog into the address bar, I want firefox to fetch the page mozilla.rog. I want firefox to try, and if it does not exist, I demand to be notified that it does not exist. With an error message. URL not found. Error 404.

But instead, Firefox silently changes mozilla.rog to mozilla.org (and probably any page e.g. from .rog to .org, and from .ocm to .com , and the like) without my permission, and loads this other page I did not type in.

I do NOT and NEVER allow ANY program to alter my commands without notifying me.

so... which about:config setting disables this autocorrection-behavior?

Asked by amando.aarish 1 day ago

Last reply by jscher2000 1 day ago

ubuntu html5 livestream error

when i try to watch a live stream on youtube/twitch, i get the errors YouTube - your browser cannot play this video twitch - This video is either unavailable or not suppo… (read more)

when i try to watch a live stream on youtube/twitch, i get the errors YouTube - your browser cannot play this video twitch - This video is either unavailable or not supported in this browser. (Error #4000)

im using ubuntu, and that old google test failed. any help on fixing?

Asked by makerio0503 4 days ago

Last reply by jonzn4SUSE 1 day ago

https://acorn.tv/ does not download on my Linux Mint OS/Firefox browser since ~03/282021

https://acorn.tv does not download AV content. Get error messages. One such message shown in attachment. Trailers & previews stream well , however. Android & Wind… (read more)

https://acorn.tv does not download AV content. Get error messages. One such message shown in attachment. Trailers & previews stream well , however. Android & Windows OS devices continue download & stream Acorn content on Firefox as before, no problems. Thank you.

Asked by DancingH2O 5 days ago

Last reply by jonzn4SUSE 1 day ago

Always crashes when accessing online banking

My Mozilla occasionally crashes on various websites but this is rarely a big deal and is usually restored without further problem. However, when trying to access my onlin… (read more)

My Mozilla occasionally crashes on various websites but this is rarely a big deal and is usually restored without further problem. However, when trying to access my online banking (Co-operative and Smile) it crashes repeatedly after a few seconds, making these sites unusable. Anyone got any ideas why this specific site is a problem and how to overcome it?

My cookie cache is erased every time firefox closes and I only have Ecosia as an Add on. My security setting was strict but I changed it to standard. This had no effect. I'm not very familiar with Linux so a simple explanation would be appreciated!

Thanks in advance

P.S; The crash reports fail to submit. I don't know if this is related.

Asked by leicestergreensteve 2 days ago

Last reply by FredMcD 2 days ago

Saving to wrong location

deets: v87 via flatpak on debian(buster) No matter where I save a file the lastdir is always "/run/user/1000/doc/*some random folder name, that changes each time*". manu… (read more)

deets: v87 via flatpak on debian(buster)

No matter where I save a file the lastdir is always "/run/user/1000/doc/*some random folder name, that changes each time*".

manually changing browser.download.lastDir causes the next attempt to save to go to the desired folder, but a second attempt reverts to /run/user/1000/doc/abcd123.

Has anyone any idea whats going on?

Asked by buckmulligan26 2 days ago

Not able to play youtube livestream (including the videos that were streamed earlier)

I am not able to play youtube livestream videos (including the videos that were streamed earlier). I am using Ubuntu 20.04.2 and firefox 87.0 (64-bit). I tried disabling … (read more)

I am not able to play youtube livestream videos (including the videos that were streamed earlier). I am using Ubuntu 20.04.2 and firefox 87.0 (64-bit). I tried disabling all the extensions; but no luck. I am facing the same issue with BlueJeans also. Youtube displays - "Your browser can't play this video."

Asked by sudipchowdhury47 5 days ago

Last reply by cor-el 2 days ago

Firefox Developer Edition On Ubuntu - Update Hassles

On Ubuntu, FFDE can be configured to 1. Auto-update - but it just displays a message saying that it cannot update 2. Download updates and request permission to install t… (read more)

On Ubuntu, FFDE can be configured to

1. Auto-update - but it just displays a message saying that it cannot update

2. Download updates and request permission to install them - all it does is display a message saying a new update is available

I think this all stems from the fact that FFDE at present has to be manually installed on Ubuntu. Why this is so, I cannot fathom - maybe someone here has an answer to why open sourced op system users are inconvenienced by Firefox.

It's feasible to script an update procedure to Ubuntu for FFDE. But this will not stop the annoying (every 2 hours) pop-ups about new updates being available - even when there is no new update there . . .

Maybe FFDE could simply stop automatic update reminders altogether. Users can decide (or script) for themselves if they want to update.

Asked by tamjk 3 days ago

Last reply by cor-el 3 days ago

Bitmap-like font when print webpage to PDF

Please see the attachment, which was the screenshot of a PDF file that was printed from a webpage. A bitmap-like font was used, which made the text blurry. I tried settin… (read more)

Please see the attachment, which was the screenshot of a PDF file that was printed from a webpage.

A bitmap-like font was used, which made the text blurry.

I tried setting "layout.css.font-variations.enabled" to false. It didn't help.

This is firefox 87.0 (64-bit) on Void Linux x86_64.

Some help, please?

Asked by GuXRS 3 days ago

Last reply by jscher2000 3 days ago