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  • Đã giải quyết

Linux Firefox not accepted by online sales websites in Zorin OS and Linux Mint

Zorin16-Linux version 99.0 Ubuntu Canonical 1.0, -found in Help/About. Firefox recognition of version below says 91.0. Also have Linux Mint 19.3 (Tricia). Computer 15Y… (xem thêm)

Zorin16-Linux version 99.0 Ubuntu Canonical 1.0, -found in Help/About. Firefox recognition of version below says 91.0. Also have Linux Mint 19.3 (Tricia). Computer 15YO Dell Dimension 900.

I've had no problems with Linux Firefox for many years. I do not use any other Non-Linux OSes. Linux Mint updates Firefox regularly and so do I in that OS. I'm currently in a free version of Zorin which doesn't seem to push out updates, so my Zorin Firefox may be sadly out of date.

At any rate, today in Zorin, when I went to several of the bigger online sales platforms, they refused to accept my Firefox and suggested Chrome, Opera, and Safari; Target suggested Firefox.

Went to Mozilla to try and upgrade, but it didn't offer the Linux browser automatically when it read my computer. I was only offered the Windows browser. This may be because the computer is an old Dell Windows machine that I converted to Linux or it may not. I've never had this happen before.

Yesterday in Linux Mint, in which Firefox is upgraded at least weekly, the same thing happened once with a big online retailer. They said my browser was outdated and unsafe.

What's going on? I'm wondering if Linux OSes are simply not being accepted when the big retailers are doing software upgrades, or is something going on with Firefox?

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  • Đã giải quyết

Firefox windows could not be dragged now.

Maximizing and minimizing are still normal, but Firefox windows could not be dragged now. $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Descriptio… (xem thêm)

Maximizing and minimizing are still normal, but Firefox windows could not be dragged now.

$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 22.04.1 LTS Release: 22.04 Codename: jammy

$ firefox --full-version Mozilla Firefox 102.0.1 20220707183149 20220707183149

$ firefox --help Usage: /snap/firefox/1551/usr/lib/firefox/firefox [ options ... ] [URL]

$ which firefox /usr/bin/firefox

Đã được hỏi bởi larry 1 tuần trước

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  • Đã giải quyết

Unable to show File Picker

This was going to be a question about Firefox being unable to display the file picker dialog, but I managed to find a solution that worked for me along the way. Since it … (xem thêm)

This was going to be a question about Firefox being unable to display the file picker dialog, but I managed to find a solution that worked for me along the way. Since it was nowhere near the top of Google's results, I thought I'll share my solution in the hopes that this would help someone facing this same issue.

The hardware:

  • Asus UM425IA Zenbook (AMD Ryzen 7 4700U CPU)

Worked in:

  • Ubuntu 20.04 LTS
  • Firefox provided by APT repository
  • Xorg display server

Not working in:

  • Ubuntu 22.04 LTS
  • Firefox 99.0.1 provided by snap
  • Wayland display server
  • File picker worked briefly on fresh install, but something (not sure what) quickly breaks file picker functionality

The symptoms:

  • Firefox stopped being able to open file picker dialogs
  • Right clicking an image and selecting "Save Image As..." does nothing
  • With forms that accept file upload (such as on this post question page "Add images (optional):"), clicking "Browse" does nothing
  • File downloads work correctly when set to "Save files to ..." under Settings, but nothing happens when set to "Always ask you where to save files"
  • No response to "Ctrl + O" open file shortcut

Similar questions and solutions:

Things I tried that did not work:

  • Disabling hardware acceleration
  • Starting with add-ons disabled
  • Troubleshoot mode
  • Clearing startup cache
  • Clearing cookies and site data
  • Clearing history
  • Refreshing Firefox
  • Creating and using a new profile
  • Deleting the `xulstore.json` file from the profile directory
  • Toggling all permissions under Ubuntu Settings > Applications > Firefox to off and then back to on
  • chmod 777 ~/Downloads
  • Disabling native file picker "ui.allow_platform_file_picker = false"

And finally, what fixed it for me was to go into "about:config" and change "widget.use-xdg-desktop-portal.file-picker" from "2" to "0". Credit to this post that clued me in.

I really hope this saves someone else 2 days of hair pulling and I would appreciate advice from someone more knowledgeable than me on:

  • Why this fixed the problem
  • Whether I should be opening a bug report either against Firefox, or Ubuntu
  • Whether I should also be changing "widget.use-xdg-desktop-portal.mime-handler" and "widget.use-xdg-desktop-portal.settings", both are currently set to "2"

Đã được hỏi bởi James Fu 3 tháng trước

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  • Đã giải quyết

geo.provider.network.url no longer works

Noticed geo.provider.network.url setting in about:config no longer works in firefox 102.0 ubuntu. I use it consistently so it was easy to notice that it no longer had any… (xem thêm)

Noticed geo.provider.network.url setting in about:config no longer works in firefox 102.0 ubuntu. I use it consistently so it was easy to notice that it no longer had any effect after updating.

tested both on https://maps.google.com and https://browserleaks.com/geo

Is it possible to revert to an older version without losing my data?

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  • Đã giải quyết

Log ins lost every time I start FireFox - only started happening recently.

I've checked a couple of the "similar topics" before posting here. I'm not sure if I am having the same problem or something else. Back Story: I have a "few" windows and… (xem thêm)

I've checked a couple of the "similar topics" before posting here. I'm not sure if I am having the same problem or something else.

Back Story: I have a "few" windows and tabs open in FireFox. I would finish what I was doing, shut down and then the next time I booted up and loaded FireFox, all sessions would be restored and all log ins honoured (kept). That is: I was still logged in.

(Moving to now) Yesterday I powered up and ALL sites were logged out. About 20 log ins were needed. Hmmmmm... gmail, and the rest.

"Ok... something happened. No problems, things should be ok from now. I've logged in, so all is sweet."

Today I power up: All logs ins lost. Had to go through it all again.

Gmail is throwing security alerts at me hand over fist. Yeah, that is good in some ways. I get that part. But I've logged in.

Seems - my thoughts - that the cookies aren't being saved. But why? I haven't touched them or their settings.

Yes, I did do a clean out of older cookies. But left the gmail ones, and other sites I know I use. I have `adblocker ultimate` installed.

Now I am logged in, if I open the `cookies` and look I should see them there for the sites to which I am logged in - yes?


To be clear: When I am done, I do NOT `exit` FireFox. All windows, tabs, sessions are left. I just shut down the machine. Then next time I load FireFox and they are re-loaded and log ins are maintained.

Đã được hỏi bởi teeny_weeny 1 tháng trước

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  • Đã giải quyết

Auto reset sound volume output level

My OS is Pop! OS. Using 'Tidal' as a web based music streaming service and I play vids on YouTube. Every time a new song or video starts, or when I skip, rewind or do any… (xem thêm)

My OS is Pop! OS. Using 'Tidal' as a web based music streaming service and I play vids on YouTube. Every time a new song or video starts, or when I skip, rewind or do anything like that, it auto resets the volume level output in my sound settings to about 75 to 80 % of the max possible level. So basically, I have to adjust each and every new song by hand, it is infuriating. I block facebooknet in Umatrix and firebaseinstallation googleapis as well as google tag manager but nothing else. That's on Tidal, similarly I do not block essential cookies on YouTube, so I don't think that is the problem. I have a hunch that the answer is somewhere in about:config. If this is intentional, then I'm giving up hope. Thank you.

Đã được hỏi bởi NN 1 tháng trước

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  • Đã giải quyết

Firefox 102 cannot open url in address bar, only searches

Starting today, with firefox 102 (on Ubuntu 20.04), I cannot open a url using the address bar. If I enter a url and then hit Enter, it brings up my selected search engine… (xem thêm)

Starting today, with firefox 102 (on Ubuntu 20.04), I cannot open a url using the address bar. If I enter a url and then hit Enter, it brings up my selected search engine looking for that url, not opening the url itself. This has not happened before today. Is there a way to use the address bar only for opening addresses, and use the search bar for searching?

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  • Đã giải quyết

[SOLVED] cannot save page/file to local drive

Hi, I'm using version 101.0.1 (64 bit) for Ubuntu 22.04. When I open a link of a pdf file, the file is displayed in the built-in viewer, since I chose "Open in Firefox" i… (xem thêm)

Hi, I'm using version 101.0.1 (64 bit) for Ubuntu 22.04. When I open a link of a pdf file, the file is displayed in the built-in viewer, since I chose "Open in Firefox" in my settings. But then if I click the download icon nothing happens. If I click the print icon and choose "print to pdf" in the popup, then clicking on "save" does nothing and I have to click "cancel" to dismiss the popup.

Actually there is no way to save a pdf file but setting PDF app to "Ask always" and then open it with "System handler", but then the file is saved into the default download folder, even though I selected the checkbox "Always ask me where to save files" in my settings.

EDIT: the issue was solved by installing the following packages, as shown in this question :

xdg-desktop-portal xdg-desktop-portal-gtk

Đã được hỏi bởi gi4c0ph 1 tháng trước

Đã được trả lời bởi jscher2000 - Support Volunteer 1 tháng trước

  • Đã giải quyết

Load temporary add-on button not displaying popup

I'm trying to load a temporary add-on on my browser, but when I click the button "Load temporary add-on", nothing show up. I tried to look for errors in the console or de… (xem thêm)

I'm trying to load a temporary add-on on my browser, but when I click the button "Load temporary add-on", nothing show up.

I tried to look for errors in the console or debugging tool, but nothing. With snap, I removed with the purge option my Firefox and install it again, but the issue still appears.

Some technical details: Ubuntu 22.04 LTS Firefox version 101.0.1 (64-bit) Mozilla Firefox Snap for Ubuntu canonical-002 - 1.0

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  • Đã giải quyết

Blank pdfs

For some reason, whenever I load a pdf from within Firefox, I get a new tab with the regular toolbar displayed on top of pdf files, but the document itself is completely … (xem thêm)

For some reason, whenever I load a pdf from within Firefox, I get a new tab with the regular toolbar displayed on top of pdf files, but the document itself is completely blank (see attached screenshot). This issue just started today and I assume it was a result of an update, since I don't recall making any changes to my settings (I'm using Firefox 101.0.1 on Ubuntu 20.04).

I've tried opening multiple files from a variety of sites with the same result. All of them open fine using my system's pdf viewer, as well as from within Chromium. I've tried disabling my plugins, putting Firefox into safe mode and resetting all the handlers, to no avail. Any help would be much appreciated.

Đã được hỏi bởi jesse20 1 tháng trước

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  • Đã giải quyết

How to open local files in Firefox 100 snap?

I'm on Ubuntu 22.04 which is using the snap package of Firefox. It seems that I cannot open local files in the /tmp directory. When I place a test.html file there and run… (xem thêm)

I'm on Ubuntu 22.04 which is using the snap package of Firefox.

It seems that I cannot open local files in the /tmp directory. When I place a test.html file there and run `firefox /tmp/test.html`, it returns a file not found error. Why?

I don't have the problem with files in my home directory.

Đã được hỏi bởi simon.eu 2 tháng trước

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  • Đã giải quyết

Volume control not working on FF99.01 Ubuntu 22.04

FF updated yesterday with the new Ubuntu 22.04 (Pop) update to 99.01. Since the update the volume control inputs are essentially disabled on all web sites, and they defau… (xem thêm)

FF updated yesterday with the new Ubuntu 22.04 (Pop) update to 99.01. Since the update the volume control inputs are essentially disabled on all web sites, and they default to max - even when muted.

Example - youtube - all videos play full volume Reddit - even muted videos play full volume

The volume can now only be controlled by the system slider.

The same behavior does not occur in other browsers - e.g. Chromium, Opera, etc.

Can anyone assist?

Đã được hỏi bởi knussear 3 tháng trước

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  • Đã giải quyết

Netflix on Mozilla 100 / Ubuntu20.04 constantly asks for video codex

I saw where this was a problem with Netflix, Amazon Video and other sites with Fire Fox and that one person even used professional version and still had the same problem.… (xem thêm)

I saw where this was a problem with Netflix, Amazon Video and other sites with Fire Fox and that one person even used professional version and still had the same problem.

What I cannot see is where he got the video codex that allow Netflix to work on Fire Fox version 88, let alone this newest version that Mozilla has created.

Đã được hỏi bởi Micheal R. - August 5th, 1988 3 tháng trước

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  • Đã giải quyết
  • Đã lưu trữ

Browsing on local development URLs derives on "Unable to connect"

Hi there, I'm using my PC for local web development. I use Firefox as my regular browser and recently, in order to distinguish between personal time and development time,… (xem thêm)

Hi there,

I'm using my PC for local web development. I use Firefox as my regular browser and recently, in order to distinguish between personal time and development time, I've established a new profile just for development purposes.

The local website I can't reach is "site.local.dev". My OS is Ubuntu 20.04 and that URL points to a local IP on my network (resolved via /etc/hosts file on my PC).

Funny thing is that: - In dev-profile: site.local.dev does not work => "Unable to connect" and the URL bar shows https://site.local.dev even if I force it to http:// - In personal-profile: site.local.dev does work :P

I have tried with CLI tools like "wget", "hosts", "ping", "telnet" and so on and the site loads ok. Even I have used Dillo (damn simple web browser) and the site loads ok also.

Things I've tried so far: - Suggestions at https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can - Suggestions at https://support.mozilla.org/en-US/questions/1011327 (similar issue, not exactly the same).

It must be a silly thing but I'm out of options now. Perhaps anybody has faced to this situation in the past: any suggestion on this issue?.

Thanks in advance, Ibon.

Đã được hỏi bởi Ibon Castilla Varela 6 tháng trước

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  • Đã giải quyết

Firefox starts in troubleshooting mode. Add-ons are disabled. Already did refresh. [Ubuntu 22.04 Linux]

Firefox is stuck in troubleshooting mode with add-ons disabled. I did refresh firefox and it closes and never starts again.

Đã được hỏi bởi Donato Roque 3 tháng trước

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  • Đã giải quyết

File upload dialog not appearing

I'm running Firefox 99.0.1 on Ubuntu 22.04. Recently (I think since I updated to Ubuntu 22.04 about a week ago), Firefox has been refusing to show me file upload dialogs.… (xem thêm)

I'm running Firefox 99.0.1 on Ubuntu 22.04. Recently (I think since I updated to Ubuntu 22.04 about a week ago), Firefox has been refusing to show me file upload dialogs. When I click a button that's supposed to give me one, nothing happens.

This has been happening with: - The "attach files" button in Gmail - A file upload button on Gradescope (website for managing homework assignments) - File -> Open File... and Ctrl+O.

Dragging and dropping a file onto an email in Gmail does attach the file -- it's just that the button doesn't work.

I've tried restarting, and I've tried running Firefox in Troubleshoot Mode -- so far nothing has fixed the problem. What else should I do?

Đã được hỏi bởi allispaul 3 tháng trước

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  • Đã giải quyết

Firefox Prevents Local Machine File Access But Firefox Dev Ed Allows It . . .

Local Machine: Dell Inspiron i5-7200 / 16 GB RAM / Local Op Sys: Ubuntu 20.04LTS Firefox version: 99.0 FFDE version: 100.0b5 Node.js version 14.18.1 npm version 6.14.15… (xem thêm)

Local Machine: Dell Inspiron i5-7200 / 16 GB RAM / Local Op Sys: Ubuntu 20.04LTS

Firefox version: 99.0 FFDE version: 100.0b5

Node.js version 14.18.1 npm version 6.14.15


I had a Node.js web app running on my local machine all usual browsers like Firefox, Firefox Dev Ed (FFDE), Chromium, Edge, Opera, etc till recently.

Recently it shows an error when run on Firefox (also on Chromium, Opera and Edge) although continuing to run okay on FFDE.

Firefox Error: Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at file:///home/sandbar/Desktop/nodeapp-local/undefined. (Reason: CORS request not http).

Edge Error: Access to XMLHttpRequest at 'file:///home/sandbar/Desktop/nodeapp-local/undefined' from origin 'null' has been blocked by CORS policy: Cross origin requests are only supported for protocol schemes: http, data, chrome-extension, edge, https, chrome-untrusted.


Naturally, I need to test the web app on my local machine using several browsers before I should upload it to a server and trial it there.

So how do I configure the browser and/or app to allow access to local machine files ?

Đã được hỏi bởi tamjk 4 tháng trước

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  • Đã giải quyết

Firefox crash without crash file?

Youtube music on background and java-game playing(mahjong). After few hours, firefox crash after 'fetchmail' command on bash-terminal. This has happened now two times, bo… (xem thêm)

Youtube music on background and java-game playing(mahjong). After few hours, firefox crash after 'fetchmail' command on bash-terminal. This has happened now two times, both times opening another program induced crash. No messages in logs, it would seem like POP3 port access/ssl/something makes firefox just exit.

LSB Version: core-11.1.0ubuntu2-noarch:printing-11.1.0ubuntu2-noarch:security-11.1.0ubuntu2-noarch Distributor ID: Ubuntu Description: Ubuntu 20.04.4 LTS Release: 20.04 Codename: focal

Đã được hỏi bởi ossikoo 4 tháng trước

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  • Đã giải quyết

How can version 98.0 be very outdated ??

I have been having problems accessing part of a membership site. Can't get past the first step, it doesn't work for me. Kubuntu 20.04.4 LTS Release: 20.04 Codename… (xem thêm)

I have been having problems accessing part of a membership site. Can't get past the first step, it doesn't work for me.

Kubuntu 20.04.4 LTS Release: 20.04 Codename: focal Firefox Version 98.0 (64 bit)

Have been informed from the website owner that the IT person has tested this with Explorer, Safari and Chrome, and all work. The IT support person then goes on to state - "....... that the client needs to use a different browser as Firefox is very outdated."

So, I was using the latest version and it is "very outdated"  ???

How can I respond ? Is there a training course for the IT person to deepen their skill level ?

Đã được hỏi bởi oygle 5 tháng trước

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  • Đã giải quyết

VPN issue on Firefox

Hello everyone, when I turn on my VPN and I want to use Firefox, it disconnects my connection and I can't open any web page and website! Instead when I open a private pag… (xem thêm)

Hello everyone, when I turn on my VPN and I want to use Firefox, it disconnects my connection and I can't open any web page and website! Instead when I open a private page (incognito mode) everything is okay and Firefox works properly! Can you help me to figure out this issue?

Đã được hỏi bởi Chino-Mohtajeb 5 tháng trước

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