161
votes
Accepted
How to install Firefox as a traditional deb package (without snap) in Ubuntu 22.04 or later versions?
If you switch to the APT version, you will lose the bookmarks in the snap version unless you sync them with your Firefox account, or export them manually.
The other answer by Organic Marble is for ...
118
votes
Accepted
How to solve "Pending update of "firefox" snap. Close the app to avoid disruptions" error?
If you have received a notification of a pending Firefox update it will appear as a small bell icon next to the clock in the top panel. Clicking on the bell will show a Firefox pending update ...
110
votes
Accepted
Notification saying "A new Virus is Stealing Data!" on Ubuntu 18
Keep calm, it looks like a mere phishing attempt with FUD. It seems some website(s) somehow tricked the user into giving permission for push notifications.
To fix this, follow the steps below.
Open ...
109
votes
Accepted
Firefox not playing videos on Ubuntu 20.04.4 LTS
Bro, a solution for your problem takes no more than one line :)
sudo apt install ffmpeg
That's all! After restarting your firefox browser the changes are applied and the browser plays any video ...
93
votes
How to hide title bar in Firefox 57 Quantum?
Update - May 2018
Firefox 60 has now been released to all users with support for Client Side Decorations. Go to Menu > Customise and uncheck Title Bar in the bottom left corner. This works in all ...
87
votes
Accepted
Playing Videos in Firefox
If those streaming services use DRM, you must enable DRM in Firefox's settings: Preferences -> General -> Play DRM-controlled content You might also have to install package libavcodec-extra to get the ...
80
votes
Accepted
How do I downgrade Firefox v. 57 to v. 56?
Get supported Firefox ESR 60.x (LEGACY ADDONS do not work here)
If you need supported Firefox ESR then you can add one of the PPAs. Two options here:
Get Firefox ESR 60.x as snap:
snap install --...
79
votes
Accepted
Ubuntu DNS Error Chrome: DNS_PROBE_FINISHED_NXDOMAIN, Firefox similar
Resolved: DNS_PROBE_FINISHED_NXDOMAIN in Linux
Step 1. Open terminal and add below command
sudo nano /etc/dhcp/dhclient.conf
Step 2. Now add below line in file
supersede domain-name-servers 8.8.8....
76
votes
ERR_NETWORK_CHANGED on Chrome with Ubuntu 17.04
For anyone else that probably didn't think of it like me - this was being caused by a docker container I had running on the machine.
67
votes
How to solve "Pending update of "firefox" snap. Close the app to avoid disruptions" error?
The above only works if you actually close firefox, otherwise the snap will not refresh, and running snap refresh will not even tell that it held an update back.
The formula that worked for me:
...
64
votes
Accepted
"Although GNOME Shell integration extension is running, native host connector is not detected" error in 22.04
Ubuntu 22.04 forces the Firefox Snap default for everyone, across every flavour. Starting from Ubuntu 22.04.3, the Snap version of Firefox works with the Gnome Extensions website simply installing the ...
63
votes
Accepted
How to enable touchscreen scrolling in FireFox?
This worked for me (firefox 57.0.4, Arch Linux):
open about:config in firefox to set dom.w3c_touch_events.enabled=1 (default is 2).
edit /etc/security/pam_env.conf and add MOZ_USE_XINPUT2 DEFAULT=1
...
62
votes
Accepted
Can I hide the Firefox title bar AND still see the close/minimize/maximize icons?
Firefox version 60 comes with an inbuilt client-side decoration (CSD) option which gets rid of the title bar but keeps the window control buttons (minimise, maximise, close).
If you have Firefox 60, ...
55
votes
error while loading shared libraries: libgtk-x11-2.0.so.0: No such file or directory
Your system is 64-bit, but since you want to run a 32-bit version of Firefox, you need to install the 32-bit version of the library:
sudo apt install libgtk2.0-0:i386
55
votes
Accepted
How to disable the "website is now full screen" warning in Firefox?
In the Firefox address bar type about:config and hit enter, then click the I accept the risk button.
Then search for full-screen-api.warning.timeout and set its value to 0.
After this change the ...
55
votes
Completely remove firefox snap package
For those who get the error in Ubuntu 22.04:
$ sudo snap remove --purge firefox
error: cannot perform the following tasks:
- Remove data for snap "firefox" (1943) (unlinkat /var/snap/firefox/...
54
votes
How do I install Firefox 52 ESR on 16.04?
There is an official Firefox ESR PPA for supported Ubuntu versions:
https://launchpad.net/~mozillateam/+archive/ubuntu/ppa
sudo add-apt-repository ppa:mozillateam/ppa
sudo apt-get update
sudo apt-get ...
52
votes
How can one make Firefox ignore my GTK theme entirely?
Permanent solution:
You can specify a light GTK theme to use for rendering webpages in about:config. This is great because your system theme will still apply for menus etc. but the webpages will be ...
49
votes
Firefox 57 shows dark input boxes/dropdown menus with dark text on Gnome dark themes
I found the best solution was to add a string value in about:config for widget.content.gtk-theme-override to override the GTK theme. You can use a related theme with light text boxes (obviously this ...
48
votes
Accepted
Is it possible to install Firefox on Ubuntu with no desktop enviroment?
You can install any package available in the repositories using APT. APT is responsible for satisfying dependencies.
Counter-intuitively, the Firefox package does not depend on the X server (or ...
47
votes
How to solve "Pending update of "firefox" snap. Close the app to avoid disruptions" error?
How to disable snap notifications on the Settings UI
This is not ideal as you will miss out on the latest security updates. But if the thing is going to keep annoying me every other day, I can't stand ...
44
votes
Accepted
Internet is working, but Firefox 67 browser cannot connect after update
The easy fix, with no profile or preferences rebuilding required...
This just renames the current Firefox cache folder. Firefox recreates this folder at next launch. The .HOLD only saves the old ...
43
votes
Enable backspace to go to the previous page in Firefox
Type about:config in the address bar of Firefox and search for browser.backspace_action. Change its value from 2 to 0 and now you can use Backspace to go back in history.
43
votes
How to enable touchscreen scrolling in FireFox?
Found this solution elsewhere: if I start firefox from the command line with
env MOZ_USE_XINPUT2=1 firefox
then touchscreen scrolling works for me. To avoid having to start firefox from the command ...
40
votes
What happens if I accidentally leave an app running and click "Install Now" in Software Updater?
You must be thinking of Windows. Unix did it right, and then later, Windows came along and developed wrong ways of doing things.
With Windows, replacing a file that is in use by a running process ...
39
votes
How to update libavcodec on ubuntu 14.04?
Just enable libavcodec in firefox:
type about:config in the address bar, enter
click "I accept the risk"
search libavcodec
change media.libavcodec.allow-obsolete;false to true
39
votes
Accepted
Your native host connector do not support following APIs: v6
This is a known issue. Despite the message, installation of extensions will still work on Ubuntu that currently has Gnome Shell 42.2 , but the website is broken on e.g. Arch systems with Gnome Shell ...
38
votes
Accepted
Now that I have Firefox 49 or higher, how do I watch Netflix?
As wisely mentioned in comments: if you have this problem, contact Netflix support about it. It's a problem to be fixed on their side, and the more complains they'd get, the faster it get fixed.
A ...
Community wiki
37
votes
Accepted
How to make touch-screen scrolling work in Firefox Quantum?
The same solution for Firefox 50 and Ubuntu 16.xx still works for Firefox Quantum 57 and Ubuntu 17.10: Ubuntu 16 and touchscreen scrolling in FireFox
The solution is to launch firefox using:
env ...
Only top scored, non community-wiki answers of a minimum length are eligible
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