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Questions tagged [firefox]

A free and open source web browser created by Mozilla.

4
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0answers
637 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 ...
4
votes
0answers
377 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 ...
4
votes
0answers
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 ...
3
votes
0answers
50 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 ...
3
votes
0answers
452 views

SEC_ERROR_UNKNOWN_ISSUER particular website

I am a relatively new user to linux (< 3 years) and am having this issue on a MacBook Air running Ubuntu Mate with Firefox. Fortunately the IT helpdesk at my university is incredibly helpful and ...
3
votes
0answers
1k 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 (...
3
votes
0answers
115 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 ...
3
votes
0answers
110 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 ...
3
votes
0answers
478 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 ...
2
votes
0answers
14 views

Launching Firefox from application launcher with “TZ=UTC” stopped working

I had a launcher for firefox with command TZ=UTC firefox. Suddenly it stopped working, I think after I did pacman -Syu (I only clicked again much later so it could be something else). I am using arch ...
2
votes
0answers
48 views

Firefox has stopped outputting HTML5 audio

Firefox 65.0.1 (64-bit) has suddenly stopped playing all HTML5 audio. (Videos play but there is no audio output.) Audio still works in Flash applications and HTML5 audio works as expected in other ...
2
votes
0answers
24 views

How can I stop webpages directing me to the mobile site (Firefox)?

I've recently started using Arch Linux on a Chromebook C201 (arm). However, when using Firefox, many websites seem to direct me to their mobile site, which is getting quite irritating. Perhaps they ...
2
votes
0answers
22 views

Firefox not loading style immediately

I have updated Firefox to the newest version (57.0), and now on almost every page load, the page loads without style first (so, all the links in plain HTML on the left side of the screen), and after ...
2
votes
0answers
398 views

How to redirect all requests for localhost:483 to localhost:80 with dnsmasq

I have an issue with redirecting advertising domains to localhost on Linux Mint. I've followed the instructions on Debain Administration Guide and this gist on dns-based ad-blocking. Generation of ...
2
votes
0answers
185 views

Video Downloadhelper / Firefox fails NS_ERROR_FAILURE

Video download helper fails on my machine : clicking the black download arrow does nothing clicking the three coloured balls and picking a format does nothing either but produces following console ...
2
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0answers
123 views

What is machine-id?

Just read the machine-id manpage, still not clear on how it's used by applications. QuiteRSS and Firefox among others seem to use it. Is it generally safe to blacklist (using apparmor) certain ...
2
votes
0answers
40 views

Bookmarks' suggestions are too slow in Firefox

After re-installing Firefox on my Linux Mint system I have been experiencing some trouble with my bookmarks; namely, when I start typing in the URL bar (the main bar in Firefox, the one on the left ...
2
votes
0answers
587 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. ...
2
votes
0answers
462 views

Scrollbar width of Linux-Firefox

On my system (I am just running Fluxbox 1.3.7 on FreeBSD 10.3 – but I've seen that on Linux, too) Firefox has a much more narrow scrollbar than on Windows (which also behaves differently). How do I ...
2
votes
0answers
351 views

I have trouble analysing the cause of this (firefox) segfault

When executed within a minimal (unprivileged) LXC container, firefox segfaults (other graphical applications work fine). I'am unable to find the exact cause of this segfault (which is most likely due ...
2
votes
0answers
61 views

Firefox attempting to auto-detect charset during fallback

When a font is being used in Firefox that is missing the required glyph and it falls back to the next available font it seems that firefox makes some attempt to detect the charset of those characters ...
2
votes
0answers
50 views

Differences in Ubuntu packaging? Eclipse vs. Firefox

Installing a reasonably recent version of Eclipse on Ubuntu (as its upstream Debian) requires a manual install (downloaded directly from the Eclipse website, or a PPA if one can be found). Compare the ...
2
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0answers
621 views

Java plugin not working with FireFox 24.3.0 on Red Hat Enterprise Linux 5.10

In the about:plugin tab, there is not Java plugin. I have created the symbolic link as suggested. The output of the 'ls -al' command is: lrwxrwxrwx 1 shehab shehab 58 Jun 4 11:21 libnpjp2.so -> ...
2
votes
0answers
672 views

Strange symbols instead of icons in Firefox

I am running Firefox 27.0 and sometimes it shows strange symbols instead of icons. For example, instead of arrows up/down for up voting or down voting in a forum, it show some Japanese looking ...
2
votes
0answers
2k views

Linux bridge blocks UDP packet from tap interfaces

Introduction: I'm working on a 6lowPAN projects of Wireless Sensor Networks. Basically, I have a set of nodes (Contiki OS) which are running on a linux host. Each nodes have its own tap interface ...
1
vote
0answers
76 views

MOZILLA_PKIX_ERROR_REQUIRED_TLS_FEATURE_MISSING

I updated Firefox to version 67.0, and after the customary fights like getting the tabs on the right spot, I found I couldn't connect to stackoverflow anymore (or to the redhat bugzilla). I get ...
1
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0answers
49 views

Setup Automation - Firefox and Addons

I am improving my setup script for new installs and want it to include setting up firefox. One big problem I found is, that it is not possible to install addons via CLI that automatically get updated ...
1
vote
0answers
41 views

buggy font rendering on browsers

hello I am running arch with everything updated here is the problem firefox 66.0.3 chromium 73.0.3683.103 opera 60.0.3255.27 zoomed firefox with Allow pages to choose their own fonts, ...
1
vote
0answers
61 views

Firefox Quantum 66 ignoring CSS styling in dropdown menu

I have noticed in my Firefox browser running on Linux Mint 18.2 that Firefox will ignore CSS stylings for dropdown menus, and instead defaults to what looks like system themes. This issue is not ...
1
vote
0answers
21 views

A “systemic” slowdown - from firefox to other apps

The problem I'm describing has followed me from Mint 18.3 to Devuan ASCII (~= Debian Stretch), so it is likely not super-specific to a distribution. My typical desktop session has an IDE, two ...
1
vote
0answers
36 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 ...
1
vote
0answers
63 views

Clean way to run proper file manager from Firefox on Linux

As many of mans known, currently solution with defaults.conf and mimetypes.cache does not work. Firefox currently uses D-bus to activate service org.freedesktop.FileManager1 to handle "Open ...
1
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0answers
20 views

Cairos's configure output: Is it enough for Firefox?

I intend to compile Firefox from the source. For that, I do need to compile GTK. And for that, I do need to compile Cairo. After solving some of Cairo's dependencies, I was able to run the configure ...
1
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0answers
27 views

How to enable cookies for specific site in Firefox using command line?

I have application embedded in Firefox and it is installed on Linux(Fedora) machine. We have disabled cookies and other user controls (Right click, menu access etc.) Now there is one site which ...
1
vote
0answers
168 views

Decompress firefox 57+ opened tabs file on Linux from the command line : Error 44 : Unrecognized header : file cannot be decoded

I need to decompress firefox 57+ opened tabs file. I use unlz4 from the Ubuntu package liblz4-tool : $ cp .mozilla/firefox/t6bznle5.default/sessionstore-backups/recovery.jsonlz4 ~/recovery.lz4 $ ...
1
vote
0answers
16 views

Thunderbird not willing to start firefox when binary replaced with symlink

I've been using the Debian "alternatives" mechanism to support multiple installed versions of Firefox. Regardless of the specifics, the bottom line is that instead of /usr/bin/firefox being a binary, ...
1
vote
0answers
752 views

Codecs support disabled in Firefox

In Firefox 61, under Tumbleweed I cant play videos from youtube, when checking for the html5, it says: So I have been playing with the about:config and about:buildconfig but the mp4, h264, etc ...
1
vote
0answers
107 views

tradeoff in the uMatrix default rules: third party frames are blocked but images/css are allowed

The default rules for the uMatrix browser extension look something like this: * * * block * * css allow * * frame block * * image allow * 1st-party * allow * 1st-party frame allow What's an example ...
1
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0answers
204 views

Nagios core 4 Audio Alarms problem with firefox

i've searched everywhere for a solution but i start to think there's something i do not understand in the problem i've discovered on a nagios core installation. I've configured audio alarms (beep and ...
1
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0answers
166 views

Firefox: Identify CPU hungry tabs

I run Firefox with many tabs open. After a while the process 'Web Content' eats up all CPU. top looks like: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND ...
1
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0answers
34 views

Does GUI programs terminate on SSH disconnect even if launched in screen?

I have a Fedora system with a Xvfb display and an x11vnc server for remote connection. To keep programs running after SSH disconnects, a screen session is also set up. And usually, I run fluxbox and ...
1
vote
0answers
879 views

Very high CPU usage when playing web videos (Ubuntu 16.04.3)

I have just set up a new laptop - Dell XPS13 running Ubuntu 16.04.3 LTS. I've noticed very high CPU usage when watching web video. From a fresh boot, I start a single Firefox (or Chromium) window, ...
1
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0answers
734 views

Trying to build GNU Icecat Browser from tarball in Debian

I got the icecat-52.3.0-gnu1.tar.bz2 file from http://ftp.gnu.org/gnu/gnuzilla/52.3.0/, then followed the directions in the readme as follows: tar xvjf ~/Downloads/icecat-52.3.0-gnu1.tar.bz2 mkdir /...
1
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0answers
445 views

Is it possible to make Firefox open a URL in a popup window?

I would like Firefox (the new super fast Quantum with low memory usage) to open some URLs in a special/popup window, i.e. almost without anything (toolbar, menu bar, tab bar, address bar, etc.) other ...
1
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0answers
253 views

Programmes crashing in OpenBSD 6.1

I run OpenBSD 6.1 and some programmes like thunar and firefox keep crashing randomly. Not all programms crash, however. I ran memtest, I increased datasize-max and datasize-cur both to 2048M in /etc/...
1
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0answers
171 views

How are default fonts set for programs like FireFox?

I'm currently working on getting my first real Linux install configured and I'm having issues with programs using a font I would prefer it did not. For example, if I look at FireFox, I can see the ...
1
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0answers
308 views

X11 forwarding firefox not working, and no errors

I am trying to run firefox over X11 and can't get it to work. I am running OpenSuse 42.3, and have an optimus graphics card with bumblebeed installed. When I try firefox or firefox --no-remote or ...
1
vote
0answers
123 views

Firefox: allow pop-ups for whole domain

I am using Firefox-esr 52.2. In Preferences, I can allow Pop-ups for specific websites: Preferences -> Content -> Pop-ups -> Exceptions But these are rules for individual ...
1
vote
0answers
74 views

Youtube videos after sleep mode

(This is my first post here, I hope my post is ok) After sleep mode (close / open laptop screen), if I try to play a video on youtube the video doesn't play and I have this message : "If playback ...
1
vote
0answers
51 views

Firefox resets all browser settings to default on each update. Why?

Whenever I update Firefox browser, all my settings are reset to default, and the updated browser looks factory fresh. Why is this happening? How can I make my settings persist?