Questions tagged [firefox]

A free and open source web browser created by Mozilla.

274 questions with no upvoted or accepted answers
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3 answers
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Open Firefox twice (with same profile)

There are tons of resources that tell how to run several instances of Firefox in parrallel. I can't find any that tells me how to configure a command (on a command line, start menu item, or panel ...
KlaymenDK's user avatar
  • 689
7 votes
1 answer
4k views

How to tell Chromium-browser to run a url as single instance not multiple instances?

I have a web application which crawls data and any browser download it first the second one will not get that crawl informations. While using Chromium-browser in a PC i start as below: $ chromium-...
user avatar
5 votes
0 answers
145 views

Firefox seems to need “catchup time” after unlocking screen (using light-locker/lightdm)

(Possibly related to After unlocking light-locker, screen remains blank proportional to how long it's been locked) I’ve recently switched from xscreensaver to light-locker because of an annoying ...
obadz's user avatar
  • 206
5 votes
0 answers
2k views

How to make okular open http/https links in PDFs with firefox?

I'm on FreeBSD and have compiled and installed the graphics/okular port (i.e. not much else of KDE4 other than okular's dependencies.) This has installed version 1.8.0. I start my X11 manually with ...
Jens's user avatar
  • 1,762
5 votes
0 answers
1k views

Fullscreen works in Chrome but not in Firefox in XMonad

I have searched for people in similar situations, but mostly found out about people who could not make Chrome go fullscreen, but for whom Firefox would. In my case, I can only get fullscreen to work ...
Elvis Sikora's user avatar
5 votes
1 answer
2k views

Debian Kde Iceweasel/Firefox: setting custom protocols handlers

I recently switched from Ubuntu 10.04 gnome to Debian wheezy Kde. Everything's work fine, except to the Iceweasel/firefox custom protocols! I added komodo.protocol in my ~/.kde/share/services with: ...
Strae's user avatar
  • 233
4 votes
1 answer
692 views

Does Firefox have a command-line flag to close the application?

I shut down Firefox at night by running killall -s SIGTERM firefox via cron, in order to apply the package manager and browser addon updates. Unfortunately each time when the browser is (manually) ...
user598527's user avatar
4 votes
0 answers
807 views

How do I permanently set bluetooth device as default in pipewire

I am running latest Pipewire and I have a Bluetooth headset connected to it. What I'd like to achieve is that when I turn on my headset, all applications in the laptop start using the microphone ...
Alexandre Thenorio's user avatar
4 votes
0 answers
2k views

Debian 11 freezes with Firefox

I am new to Linux currently studying Computer Engineering and we were told we needed to install a Linux distro in our machines, I decided to install Debian 11. I've been able to resolve most problems ...
Adolf RJ's user avatar
4 votes
0 answers
87 views

Are prints to files logged somewhere?

So, I had a little accident the other day. I printed a file from a website to a PDF (using the Firefox print-to-file functionality). Unfortunately, I forgot to change the filename of the destination ...
programonkey's user avatar
4 votes
1 answer
626 views

How to blacklist PulseAudio channels for Firefox (namely, Monitor of HDMI Output)?

When I try to do video chatting in Firefox (using Jitsi Meet) it apparently selects the first available Input Source as my microphone which is always invalid. The one selected is "Monitor of HDMI ...
Ned64's user avatar
  • 8,736
4 votes
0 answers
325 views

Links try and fail to open in firefox, then open in chromium after killall firefox

Whenever I click a link in some GUI applications, such as signal or slack, either nothing happens, or I just see the screen flash (the screen also flashes when I start firefox normally). This happens ...
Drew Nutter's user avatar
4 votes
0 answers
73 views

Error when opening downloads folder in Firefox

Every time I download anything and click on "open folder" in Firefox something else happens, instead of the required action a media player is open. I just uploaded this video so you can see for ...
Moltke's user avatar
  • 41
4 votes
2 answers
2k views

What is preventing Firefox from opening websites?

I solved my problem but I want to know what caused it for any future reference and better understanding. I have come across a strange behavior of Firefox on Ubuntu 14.04. I left office with my laptop ...
campovski's user avatar
  • 141
4 votes
0 answers
412 views

Middle mouse button behaviour in Iceweasel (FireFox): paste at *text* cursor

In Iceweasel under Gnome on Debian Jessie, the middle mouse button exhibits the following behaviour: If clicked on a hyperlink, it opens the link in a new tab. If clicked anywhere in an editable text ...
user avatar
4 votes
0 answers
1k views

Installing Firefox add-on globally without extracting the .xpi archive

Since the great -install-global-extension option was removed in Gecko 1.9.2 (for no obvious reason, as usual), copying the extension (as root) to /usr/lib/iceweasel/extensions/<appid> is now the ...
syntaxerror's user avatar
  • 2,246
4 votes
1 answer
945 views

Firefox extension to open link in Chrome

I am looking for simple solution to add Open in Chrome to Firefox menu, similar to the, already existing, open in new window. I am using Firefox 68.4 on Debian Buster. I found some extensions in the ...
Martin Vegter's user avatar
3 votes
1 answer
379 views

Don't set wm_class of "Navigator" when starting Firefox

I'm starting Firefox as follows: /usr/bin/firefox --no-remote -P Fastmail --class "FastmailFF" The ultimate goal is to figure out a command to put in a .desktop file which will have it's ...
EoghanM's user avatar
  • 887
3 votes
0 answers
195 views

Switched from cinnamon to dwm, missing the way cinnamon unified the appearance of apps

I'm running linux mint's cinnamon desktop. In system settings I have Font Selection->Text Scaling Factor set to 1.2 and under Accessibility->Visual Aids->Large text toggled on. The reason is ...
user avatar
3 votes
0 answers
78 views

Firefox 87.0 starts slow on Linux 5.8.0

I have upgraded firefox to 87.0 several days ago, but it starts slowly since then. It works fine after startup, but only takes more time to start. firefox -safe-mode does not speed up the startup. I ...
Simon's user avatar
  • 170
3 votes
1 answer
1k views

Can I use /etc/hosts to whitelist domains?

I set up a little ubuntu box for my son for remote learning and I would like him to only access certain domains in the browser. I was thinking of doing a blanket etc/hosts but I would need to add ...
Frank Conry's user avatar
3 votes
0 answers
391 views

AppArmor blocking firefox on Linux Mint 18.3

Using aa-genprof, I've attempted to generate a profile for Firefox, but AppArmor keeps blocking access to a connect capability when Firefox attempts to start, which throws an error : Failed to ...
john doe's user avatar
  • 836
3 votes
0 answers
1k views

How to reload all favicons in Firefox Quantum Bookmarks

This question is related to the deprecation of the Favicon Reloader Firefox extension. I know that this can be a effective solution, but as it's mentioned, is really high resources consumption at ...
DATALOT's user avatar
  • 457
3 votes
0 answers
112 views

How to use the system spell checker dictionary in Firefox?

I want to maintain one good dictionary system wide. Unfortunately there are many applications which use their own Hunspell dictionary. Finally it depends on the application and its outdated ...
Jonas Stein's user avatar
  • 4,088
3 votes
0 answers
1k views

Why is Firefox stuck, and how might I get it unstuck?

Firefox is hung. Usually I kill it with -1, -9 or -15, but this time, dang it, I want to find out why. I have an hour or so to waste on this, and seek education above actually solving the problem. ...
DarenW's user avatar
  • 3,453
3 votes
3 answers
599 views

how to tell firefox to shutdown cleanly from tty1?

Lately I run Firefox almost exclusively from on one of my Debian laptops (which run testing). Occasionally (~monthly) my desktop/tty7 hangs, in which case I usually can goto tty1 and sudo shutdown -[...
TomRoche's user avatar
  • 1,285
3 votes
1 answer
1k views

Java plugin crashing in Firefox - Fedora 20

I have been wrestling with this for over a day now. I have a Fedora 20 physical system running Firefox 38.0.5. When I go to the java site to verify my version I get an error saying "The Java plugin ...
user53029's user avatar
  • 2,823
3 votes
0 answers
2k views

How to launch an application with different Gtk+ 2 theme?

I'm trying to use a dark Gtk+ theme, and everything goes fine with native Gtk+ apps, and well, only with Gtk+ apps. I mean, wxWidgets and Mozilla's apps looks terrible, if not counting unreadability (...
McSinyx's user avatar
  • 591
3 votes
0 answers
144 views

Firefox resolution not proportional

I've just installed Linux Mint 17.2 (Raffaela) KDE. I am experiencing a strange problem with Firefox though: The Firefox controls (toolbar, bookmarks, tabs, etc.) in Firefox look huge compared to the ...
jritter's user avatar
  • 61
3 votes
0 answers
133 views

Unable to close pages in Firefox after hiding the tab bar

In my style.css (which affects the look of Firefox) I hid the tab bar using display: none !important; which should only hide the tab bar. But now when I go to close tabs (using "d" in ...
user3742585's user avatar
3 votes
0 answers
535 views

Switching sound card without restarting the browser

Does anyone know if Iceweasel (Firefox) runs HTML5 audio/video in a separate process that can be restarted? With Flash I can restart plugin-container after changing the sound card in ~/.asoundrc. With ...
August Karlstrom's user avatar
3 votes
1 answer
393 views

Firefox: Running external programs on click

Is there a way to make firefox stream youtube videos in an external player (eg vlc) when you click on a youtube video? More generally, is it possible to run an external script upon clicking certain ...
user4025526's user avatar
3 votes
2 answers
609 views

Strange firefox bugs following migration of home areas to NAS drive

We run a small linux cluster of 20 hosts running rhel(5and6). Each host has a native user nm with the home area mounted on the machine /export/home/nm. We use NIS/NFS for individual user accounts. ...
moadeep's user avatar
  • 184
3 votes
1 answer
290 views

Firefox ESR 31.2.0 on Gentoo Linux mangles ligatures "ff", "fl", "fi" and "ffl"

I am running Firefox ESR 31.2.0 on Gentoo Linux on an AMD64 computer with 8 GB RAM. Today I noticed that quite often, when Firefox encounters the text sequences "ff", "fi", "fl" and "ffl", it merges ...
RAKK's user avatar
  • 1,352
3 votes
1 answer
1k views

How do I run webm video file in firefox using HTML5 on linux?

I am using apache server on linux and want to run a .webm video file. I have .webm video file which i am trying to run in firefox (V 12.0) using HTML5 but the browser is showing as "no video with ...
Sne's user avatar
  • 31
3 votes
1 answer
303 views

Why isn't Firefox 33 use GCM on our webserver?

We have a webserver (Ubuntu 12.04) with apache2 2.2.22-1ubuntu1.7. From client side with openssl: $ echo QUIT | openssl s_client -connect OURSERVER:8080 2>/dev/null | egrep "Cipher is|Protocol" ...
thequestionthequestion's user avatar
3 votes
2 answers
641 views

Firefox title bar doesn't go away in fullscreen mode

I just upgraded Iceweasel to Firefox 45.2.0 (with apt-get dist-upgrade) on my computer which runs Debian 8 (Stable). When I switch to fullscreen the window title bar doesn't go away. I didn't have ...
August Karlstrom's user avatar
3 votes
1 answer
1k views

How to active tabs on windows by terminal? wmctrl doesn't have option available

I'd like improve a script of mine that uses firefox to perform tasks. I need activate a window and a tab with a specific name. For example, the window name could be Mozilla Firefox and the tab http://...
GarouDan's user avatar
  • 991
2 votes
0 answers
193 views

Make firefox open url in currently selected virtual desktop

Recently, i tried to organize my computer using KDE's virtual desktops, so windows that i open on my gaming desktop do not disturb me when i'm on my working desktop. But there is a problem with ...
Mysaa's user avatar
  • 21
2 votes
0 answers
236 views

Browsers use monospace font for the ui (tabs, settings etc.)

After updating my system (Arch linux x64) and installing some font packages, (I'm unsure what exactly caused this issue) all of my browsers (chromium, firefox, librewolf) started using the default ...
Confuze's user avatar
  • 21
2 votes
0 answers
62 views

Firefox window in GNOME extends beyond visible frame

I am using GNOME 43 and have been having this issue where the Firefox window occupies more space than it is supposed to. It is like it has an invisible halo around the window that is very annoying ...
Kikin-Sama's user avatar
2 votes
0 answers
48 views

Fedora Linux VM has garbled audio when using Chromium but works fine with Firefox running

I am completely lost with this one, I just don't know where the issue could be. I have a Fedora 37 VM I run on my laptop via VMware Workstation 17 Pro (on Windows 11). While the machine boots up no ...
AtomicPorkchop's user avatar
2 votes
0 answers
73 views

Spam or serious logins? Notifications of desktop recently disconnect on my linux machine

apologies if the question sound silly but I'm a fairly basic user with very little experience. I got a notification on my computer (see picture) that a desktop computer had disconnected from my laptop....
Martina's user avatar
  • 21
2 votes
0 answers
639 views

Kali Linux VirtualBox browsers crash

No matter what I do, the browsers of my Kali Linux VM crash. I have tried Firefox ESR (preinstalled), Firefox, Google Chrome, and Chromium. In Firefox the whole browser crashes (max 1-2 mins after ...
Frederick's user avatar
  • 121
2 votes
1 answer
6k views

$ firefox /usr/lib/firefox/firefox: /usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.30' not found (required by /usr/lib/firefox/firefox)

Getting error on Manjaro after upgrading firefox: $ firefox /usr/lib/firefox/firefox: /usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.30' not found (required by /usr/lib/firefox/firefox) $ sudo pacman ...
chovy's user avatar
  • 2,069
2 votes
0 answers
190 views

"font-family: Emoji" screws up font spacing

I was using apple music on linux for the first time, and I realized the font looked horrible and the text was way too spaced out. Here's what it should look like: It should look like this but for ...
1ctinus's user avatar
  • 68
2 votes
0 answers
371 views

Why don't browsers respect LC_TIME?

I'm using en_US for system language, but pl_PL for date format. It works OK in the entire system, and running date gives me a correctly formatted date. It also shows Polish as Time format in the GUI ...
chojnicki's user avatar
  • 121
2 votes
0 answers
738 views

Firefox slow + graphics issues

I recently switched from Windows to Linux (Pop!_OS). Although I'm very pleased with Pop!_OS there are a few problems that I couldn't fix yet: Google Maps/Earth is very slow on Firefox. On Maps you don'...
user avatar
2 votes
1 answer
67 views

Firefox Window icon disappeared after interrupted upgrade

Situation See the attached image: the icon for the Firefox window has disappeared after an interrupted upgrade (VM crashed), but the icons on the desktop and in the start menu are fine. (I'm using ...
Attilio's user avatar
  • 355
2 votes
1 answer
575 views

How is the best way to debug an AppArmor syntax error?

Recently I upgraded Debian, from Stretch (v9x) to Buster (v10.2). Now in Thunderbird (package v68.3.0) when I click a link in an email, my browser (FireFox, v71.0, downloaded, i.e. not packaged) won't ...
Elliptical view's user avatar

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