Questions tagged [firefox]

Mozilla Firefox is a free and open source Gecko-based web browser. It is the current default for the Ubuntu desktop.

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How to disable Ctrl+Shift+C in Firefox

Firefox 84 (and earlier): When copying from Firefox to the terminal, we tend to mistakenly use Shift+Ctrl+c to copy text (since that is how it is done in the terminal emulator. In Firefox, this very ...
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How to view Firefox Bookmark from SSH -X?

Hello I have bookmarked a particular page on Mozilla firefox long back on my Linux machine and now I am using SSH -X from my home machine, could you please tell me how do I retrieve bookmark ...
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PR_IO_TIMEOUT_ERROR on serveral unrelative sites

A few days ago, I got blocked from certain sites. At first I thought it was gov blocked me from using it. So I fake IP with VPN (use VPN-Gate service + OpenVPN client) to access those sites. However, ...
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Firefox slow when not using PIA VPN

Firefox runs great when using PIA VPN. When only connected to my ISP, it is slow to load sites and video can take more than 30 seconds to load. I have installed IVACY VPN because PIA is going to 64 ...
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Back when I updated from Ubuntu 18.04 to 20.04 LTS [now 20.04.01] I noticed I have two “instances” of Firefox

I have two identical Firefox icons in my Activities list. Both icons appear in the Applications List located within Setting>Applications. As you can see in the attached image both are separate ...
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Firefox+GNOME workspaces Open a New Window

I have 4 fixed Workspaces (set by Tweaks). FireFox is running in workspace 1 (by default, set by Tweaks - Startup Applications). If in (say) workspace 3 and I right click Firefox Web Browser icon in ...
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41 views

Firefox on newly installed Ubuntu 20.10 does not stream videos

After a fresh install of Ubuntu 20.10, I was unable to stream video content through Firefox. Firefox showed blank screens or unhelpful messages.
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Firefox 84: random network connectivity hang

Since Firefox 84 (Ubuntu 20.04), a few days ago, I experience random network connectivity hangs. Intermittently and suddenly all network requests are hanging a few minutes and then come back. I can ...
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Firefox shows data in 'cached web content' after clearing it, exiting, and then re-opening firefox?

Whenever I clear cache, exit and reopen firefox, there is always a different amount of data in 'cached web content', like 55kb, or 122kb etc (but usually 55kb). Why is this? :) I wondered if it was ...
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Why some webpages works different or look strange in Ubuntu? [closed]

I have my computer for work with Ubuntu and another computer for personal stuff with Windows 10. I have noticed that some pages loads extremely slow in my Ubuntu (Firefox or Chrome) than they do in my ...
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Firefox 84 Crashing

After upgrading to firefox ver 84.0.1+build1-0ubuntu0.20.04.1 (from Ubuntu 20.04 repo), I've been getting a lot of crashes in firefox (rest of system is still functional). It usually happens more than ...
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Xubuntu on virtualbox not loading videos

I am running the latest version of virtualbox (Version 6.1.16 r140961 (Qt5.12.8)), and have a virtual machine running Xubuntu version 20.04 (Focal Foss or something like that). Videos do not load. ...
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How do I get Firefox to render space between lines correctly?

I am working under Ubuntu 18.04 with LXDE. The problem I am describing does not take place in Windows 10. Therefore I guess it has to do somehow with Ubuntu 18.04. Since a few days ago Firefox does ...
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104 views

How to use Firefox from 18.04 repositories in Ubuntu 20.04?

Firefox in Ubuntu 18.04 had a special patch to enable global menu, which was dropped in subsequent versions. I want to install that version in 20.04. One way to do this is to grab the .deb file and ...
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Freshly installed Ubuntu on a (late) 2015 iMac with no sound on Chrome / Spotify *unless* Firefox are running a video?

First a uname -a for some information and that says this: Linux Marvel 5.4.0-58-generic #64-Ubuntu SMP Wed Dec 9 08:16:25 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux So. When i start Chrome or Spotify to ...
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Crash due to possibly invalid encoding of clipboard content by Firefox

When copying a sequence of characters containing "ö", "ä" or "ü" from a website in Firefox and pasting it into a KeePass2 password field, KeePass2 and/or Ubuntu crashes. ...
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auto suggested text intermittently changes what I have typed

This is difficult to describe because it is intermittent. But sometimes when I type in Firefox on Ubuntu, the suggested text in the drop-down box will overwrite what I have typed. This doesn't seem to ...
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Firefox Title And Menu bar resets

So, i basically want my Firefox title and Menu bar merged. like the ( _ □ X ) symbols I searched around and found an answer: go to Firefox Menu --> Customize... --> Untick the title bar Square. ...
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137 views

Firefox stopped playing videos in Ubuntu 20.04

I'm running Firefox 84.0 on Ubuntu 20.04. Everything was working fine until a couple of weeks ago when Firefox just stopped being able to play videos. It doesn't matter whether the site is YouTube ...
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76 views

Why does Firefox tell me in my preference that my browser is being managed by my organization?

I’m using 20.04 and in preference tab is where I found this.
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I seem to have Firefox by way of Snap and normal install

Firefox is my main browser, and runs without any issues. It has one icon and no oddities. But when I update, I see it twice. sudo apt upgrade included Get:11 http://ie.archive.ubuntu.com/ubuntu focal-...
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54 views

Making Firefox developer edition the default browser for Ubuntu 20.04

I just installed Firefox developer edition using the terminal and it is working allright. The problem is I want to make it my default browser but it is not among my options. I can only see Chrome and ...
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Firefox snap Certificate Manager import window

Ubuntu 18.04 and Firefox snap - for both latest important and security updates are installed. Goal is to install in Firefox certificate of LAN to WAN router administration web-GUI certificate for http ...
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how to stop 20.04 LTS from managing moz firefox updates [duplicate]

I just upgraded a workstation from 18.04 LTS to 20.04 LTS over the web. I use Mozilla Firefox production download tar.bz2, not a .deb from an Ubuntu repository. The upgrade automatically installed ...
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28 views

Start firefox in fullscreen using wmctrl

I wanted to know if the Firefox's config file can be edited such that Firefox starts in fullscreen. I wanted to find out where is Firefox's config file, so that I could go on and add this line there ...
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28 views

Safe and convenient recovery short of reboot

It has been my experience in recent weeks that 20.04 hangs much more than 16.04. The most recent incident involved editing in gedit while Firefox and a gnome-terminal were also open. Often Skype is ...
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Weird graphical glitch in Firefox. But only lasts for about half a second

I sometimes see these graphical glitches, only in Firefox, when clicking on some sort of menu. It's only on screen for about half a second (or less) and then the glitch disappears and the menu looks ...
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how to remove the hamburger menu firefox v83.0

I'm a noobie here looking some assistance. I'm trying to limit a user's access to the three lined menu on the top right hand side of the browser (I'm using Ubuntu 20.04) I've tried creating a policies....
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Mozilla Firefox Showing Top Site's Website Pre-Render instead of its Icon

I've had some trouble loading custom icons to my pinned sites on the Mozilla New Tab's Top Sites section. Thus, I decided to use the default icons, however, instead of getting in all the pages the ...
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google maps w/ firefox 83 ubuntu 20.04 no 3D earth view

I'm using Ubuntu 20.04.1 LTS with firefox 83. 3D earth view was working well but since a few days, I don't have 3d anymore. GC: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile] I try performance ...
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1answer
25 views

Pause other media when browser starts playing

Is there a way to pause other media sources when firefox or chrome starts playing media? I know it has to do something with pulse audio and tagging firefox as phone stream so everything else stops. ...
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Docker - How to setup chrome with chromedriver or Firefox with Geckodriver building python app with Arsenic library

Python3 app that uses Arsenic library for async web scrapping. It requires browser with driver. Tested on windows pycharm, all works great because i have Chrome installed my windows. Now i have to ...
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Firefox not working after update to 18.04 LTS Version

I updated my OS from Ubuntu 16.04 to 18.04 yesterday. My Firefox stopped working after the update. It shows "server not found". Do I need to update my proxy settings (it's in automatic)? ...
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141 views

Can't read Netflix nor Prime videos [duplicate]

I am new to Linux and I'm trying Ubuntu 20.04.1 on a USB key to see what it's like. I wanted to watch a movie on Prime Video using Firefox, but I couldn't : it asked me to allow DRM, which I did. But ...
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154 views

Can't play live YouTube videos on Ubuntu 20.04

Your browser does not currently recognize any of the video formats available. Click here to visit our frequently asked questions about HTML5 video. Above message is displayed.I use live USB Ubuntu 20....
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“Lost” entire app window in Ubuntu 20.04 [edited; aka Display Mode hides active app window]

I managed to "lose" an entire Firefox window with about 20 open tabs. This happened while trying to move the window to a second desktop. I am running on Macbook Pro hardware, so I pressed ...
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Accept-language - Browser support for rare languages

I am developing a web application and I was planning to depend on the browser's Accept-Language header for user language preference setting. I just found out that I cannot freely define my accepted ...
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1answer
55 views

No internet with Firefox: g_dbus_proxy_new: assertion G_IS_DBUS_CONNECTION failed

I'm new to Lubuntu 20.04, just installed it yesterday. When I turn on my laptop it connects to WiFi correctly and I tried pinging Google and it works fine, but when I open Firefox this error message ...
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449 views

Ubuntu 20.04 freezing and crashing

I recently upgraded from version 18 LTS to 20 using Software update, and am noticing random freezing or crashing of the system ever since. Symptoms The crash usually starts with some windows freezing ...
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48 views

If it is any kind of bug from firefox or Ubuntu 20.04 side?

I have recently installed Ubuntu 20.04 and I'm quite new to Linux OS as well. I don't know whether it is a bug or not. After logging off my system(Windows+l) and logging back in, I was not able to ...
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28 views

firefox online printing to file fails

I recently changed over from chrome to mozilla firefox for several reasons. Unfortunately i can't seem to print to file (pdf) when printing from a webpage under firefox. The issue is that it (does ...
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55 views

Firefox doesn't use external sound card as output device

I'm using Ubuntu 20.04 and a focusrite scarlett solo external USB sound card. The sound card is set as the audio output device in settings and the test works and, as far as I can tell, the rest of my ...
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New Firefox version with changed sessionstore.js How to get the URL from a firefox tab from the terminal, by bash?

They are simmilar questions like follow already, with solutions, for older Firefox versions: How to get the URL from a firefox tab from the terminal? Get URL of current active tab from Firefox via ...
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144 views

After updating to 20.10 firefox is nearly useless. Slow, crashes/exits

Originally I was using 18.04 LTS. I thought it would be good to update to GG (20.10) though I did briefly try FF (20.04). As the install was done on an existing 18.04 version things remained the same ...
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82 views

Strange apt(-get) proxy authentication behavior

I've installed Ubuntu18.04 to my company's PC. And I've set the configuration to connect internet through company's proxy such like; /etc/environment http_proxy="http://user%40domain:pass@proxy....
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Firefox Crashing frequently

I have a fresh Installation of Ubuntu 16.04. The firefox is crashing frequently(every 10-15 minutes) and showing this box. Here are the details of the report. Could it be an issue related to hardware?...
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Why download speed is limited in firefox and chromium? [duplicate]

In chromium and firefox download speed is about 2.0 Mbits/s, but the speed test in those is about 170-200 Mbits/s. ~$ speedtest Download: 178.12 Mbit/s Testing upload speed................................
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How to disable spam desktop notifications with 2020 Lubuntu onboard

I receive spam notifications on a fresh install of Lubuntu 20.04 and I do not seem to be able to delete the right package. The notifications (Mitteilungen der Arbeitsfläche; maybe “notifications of ...
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52 views

Cannot access website running on Apache2 server

I have an Apache2 server on Ubuntu 20.04 running a website on 192.168.0.20. So I tried wget 192.168.0.20 on another machine with ip address 192.168.0.19 which worked fine. My problem is that I can't ...
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215 views

Firefox/Chrome, how to whitelist localhost and wikipedia.org?

On Firefox and Chrome, how do I allow the local network and Wikipedia (localhost, 192.168.1.*, *.wikipedia.org, etc) but block everything else? A whitelist essentially. I still however want other ...

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