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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1 vote
3 answers
968 views

How to remove Firefox & temp file for Firefox in Ubuntu?

How to remove old version Firefox and how remove temp file for Firefox in Ubuntu ? How to remove old version Firefox and install new Firefox 19.0 in Ubuntu?
2 votes
0 answers
2k views

Ubuntu 16.04 Firefox can't play some video despite flash installed

I'm facing an issue with Firefox 59.0.2 in Ubuntu 16.04 (up to date): Some video simply won't play. All youtube videos work, but the following doesn't work (it loads forever): https://www.reddit.com/...
1 vote
1 answer
249 views

Tor starts as Firefox

the machine is running ubuntu 16.04. Firefox is the standart browser (59.0). Tor (english, 64 bit) has been installed today from https://www.torproject.org/projects/torbrowser.html.en using this as ...
0 votes
0 answers
183 views

Ubuntu Mate 16.04 - VirtualboxGuest Overheating

I have a virtualbox guest installed with ubuntu mate. This host is overheating my laptop since some day, specially when browsing with firefox (with chromium less) or using java apps (i.e. eclipse). ...
1 vote
2 answers
300 views

Have to restart Firefox

I'm having some problems with the dreaded loss of sound in Firefox. The funny thing though is that it's only the first time I start Firefox that I'm affected by this issue. If I restart it, everything ...
3 votes
1 answer
2k views

How to fix Firefox dark theme for YouTube even dark theme is turned off?

I am using Ubuntu 14.04 and Firefox quantum 59.0.1. But YouTube shows dark theme even the dark theme is turned off. I don't know why it is happening. Here is a screenshot. How can I fix this isuue?
1 vote
1 answer
7k views

Unable to use java with Firefox 52 ESR

I am running Ubuntu Xenial(16.04.3 LTS). To use Java from browser, installed firefox ESR using these commands $ sudo add-apt-repository ppa:jonathonf/firefox-esr $ sudo apt-get update $ sudo apt-get ...
7 votes
3 answers
18k views

In youtube, There are just 360p and 720p options .(no 240p,480p and 1080p)

A couple of days before, everything is working perfectly good. But After last Ubuntu update -also flash player has updated- (I just think that was occurred after update but maybe not) I can not watch ...
0 votes
0 answers
1k views

No sounds on Firefox

I can't hear anything on Firefox. I tried using pavucontrol for troubleshooting but I am not sure what to do with it. any ideas? Here is some more info: $ lsb_release -a No LSB modules are ...
0 votes
0 answers
152 views

Just installed 16.04 on Intel Nuc Firefox problem

I was able to download updates but will not connect with Firefox using linksys wrt1900Ac with wired or wireless connection.I looked at ifconfig Getting ip from router and router shows Nuc on network ...
0 votes
1 answer
242 views

Unity pulldown menu highlight shadow stuck permanently on after selecting Help and Tools in Firefox

I was browsing Firefox, and I selected the Help and Tools pulldown menus in quick succession, but since I moved the mouse to Tools before Help fully loaded (race conditon?), the Unity highlight shadow ...
3 votes
1 answer
2k views

Snap Firefox can't access to disks in /mnt; Repository Firefox doesn't have bookmark toolbar

I've previously used Firefox in a Ubuntu 16.04 system (upgraded from the 14.04) without any problems. However, I recently did a fresh install of Ubuntu 16.04 in a different disk and wanted to use ...
0 votes
2 answers
22k views

How can I install Iceweasel in Ubuntu 15.04?

How can I install Iceweasel in Ubuntu 15.04, and keep assured that it will not be replaced by Firefox in the future upgrades? It is actually quite weird that sudo apt-get install iceweasel installs ...
3 votes
3 answers
1k views

123.SOGOU.COM - trojan horse in ukui-screensaver

Firefox's default page is 123.sogou.com and I can't remove it. I've tried to reset and re-install it, but it keeps going back to sogou.
1 vote
2 answers
294 views

Browsers are lagging when trying to load some webpages [closed]

I'm facing a problem both on firefox (no addons) & Chrome (on Ubuntu 12.04). Some sites like Facebook, Ask Ubuntu and Deviant Art are not loading even after 10-15 minutes. Other sites are ...
1 vote
1 answer
2k views

ubuntu 17.10 pulseaudio with bluetooth a2dp does not offer playback stream for firefox

I've got a bluetooth adapter which works fine as a pulseaudio high fidelity playback (a2dp) device in Ubuntu 17.10. The speaker test works fine in the standard sound settings GUI when I connect to ...
2 votes
2 answers
6k views

How to change default downloader on Firefox

I want to change default downloader of Firefox because it is very slow. I want to set uGet. I installed uGet downloader, but when I click some download link it start with Firefox's own downloader. ...
2 votes
0 answers
294 views

Ubuntu goes slower than windows

Hello and thanks for reading, i'm new on this community and i hope you can help me Long story short, i really like ubuntu, and installed multiple times, but always with the same problem, that in ...
0 votes
1 answer
908 views

how to Send to Kindle for Mozilla Firefox?

Does the "send to Kindle" extension not work for Firefox from Ubuntu? thufir@dur:~$ thufir@dur:~$ firefox -version Mozilla Firefox 59.0.1 thufir@dur:~$ From the Firefox site it's not exactly clear ...
1 vote
1 answer
2k views

Unable to open Firefox on Ubuntu 18.04 [closed]

I have a fresh installation of Ubuntu 18.04 Development Branch. Suddenly today Firefox stopped working. royal:~$ firefox Failed to connect to Mir: Failed to connect to server socket: No such file or ...
10 votes
1 answer
4k views

Firefox not closed properly when loging out

I just installed Ubuntu 14.04 beta2 and out of 25 tries either logging out, shutting down or restarting, my session didn't close Firefox properly 23 times when exiting. The result is the Firefox tabs ...
5 votes
3 answers
6k views

Is there a solution to activate Flash in Firefox 56?

In Linux ubuntu 16.04, When I open a page that uses or works with FLASH, nothing appears in the flash content and in the plugins everything is fine, flash is in mode (ACTIVATE ALWAYS) and nothing ...
2 votes
1 answer
2k views

Firefox bookmarks toolbar option is missing

Several days ago I noticed that "Hide bookmarks toolbar" option is missing, I used to use this option when I right click at the top of the Firefox window. Then I tried to hide it by clicking on View ->...
5 votes
1 answer
9k views

How to setup Belgian eID Ubuntu 14.04

I want to use my Belgian EID to login to government websites online. How do I set this up in Google Chrome and Firefox in Ubuntu 14.04? Thanks!
5 votes
1 answer
4k views

How to load Greasemonkey scripts directly from a Github gist or repo?

Instead having 3 versions of my browser's userscripts: local-draft local-Greasemonkey Github I want to have only 1 script instance in Github. I need a way to import the content of the script, which ...
4 votes
3 answers
3k views

Gmail offline on Firefox 4.0.1: "Offline Mail is not supported by your browser"

I am using Ubuntu 11.04 and its default browser Firefox 4.0.1. A pretty standard configuration, so I am surprised that Gmail offline cannot be configured and tells me: Offline Mail is not supported ...
1 vote
0 answers
4k views

Can I get hardware acceleration working for video (H.264) in firefox?

My CPU is always maxing out and fans going crazy whenever I watch streaming video on Firefox. visiting about:support, I see Hardware H264 Decoding: No, despite Firefox otherwise recognising my ...
0 votes
1 answer
149 views

Title and menu bar only works with sudo in Ubuntu 14.04

I have this strange issue. Let me explain: If I launch a Leafpad instance with leafpad command line (as an example), it shows like this: If on the contrary, I do the command sudo leafpad the window ...
2 votes
0 answers
1k views

How to get apps to scroll smoothly AND real-time? (don't drive me in the arms of Apple!)

On my Desktop I've been using Ubuntu for about 7 years now, and I love it. I now recently installed Ubuntu on my Macbook Air alongside Mac OSX. I know my way around Ubuntu very well, but there is one ...
1 vote
0 answers
12k views

Getting "Error loading player: No playable sources found" with Chromium

I'm trying to play the audio program available here on my Kubuntu 16.04 (but under LXDE). Results: Mozilla Firefox: It works fine. Google Chromium: I get this error message: Error loading player: ...
0 votes
1 answer
638 views

Error while installing Firefox [duplicate]

I am using Ubuntu 16.04.3 LTS. While installing Firefox, this error is shown: The following NEW packages will be installed: Reading package lists... Done Building dependency tree Reading state ...
2 votes
1 answer
331 views

ctrl+r-shift and ctrl+l-shift to toggle direction

I want toggle between direction inside Chrome and Firefox. For example when I'm focusing on the text area and hit ctrl + l-shift the text area direction go to the left (ltr) and when i hit ctrl + r-...
0 votes
1 answer
179 views

Firefox goes full screen when dragged from secondary to primary monitor

I'm on Ubuntu 17.10 using the cinnamon desktop I have 2 monitors and in my second (secondary) monitor, when Firefox is maximized and I grab it from the bar on top and try to drag it onto my primary ...
6 votes
6 answers
13k views

Why doesn't Chrome or Firefox auto-highlight the address bar?

In Windows, when you click on the address bar, it automatically highlights all of the web address so you can enter another one without having to drag across everything. I've noticed that it doesn't do ...
0 votes
0 answers
271 views

Firefox 57/57.04 does not display website text

This is a variant of Firefox - Websites with custom fonts not displaying: the problem is the same, but the solutions do not work for me. Moreover, I have found that two computers behave differently, ...
1 vote
0 answers
167 views

Where are the Firefox close and minimise buttons when window is maximised?

When I maximise a window in Ubuntu 14.0.4, I get the close and minimise buttons at the top left. Here's TeXStudio when it's maximised: So why does this not happen with Firefox (58.0.2)? I don't ...
0 votes
1 answer
243 views

Why does my php file not work all of the time?

I have installed apache2-server, php5, and mysql-server. In my browser when I type localhost it shows the default apache2 page. I also made a main.php file in /var/www/html. Then when I type ...
1 vote
2 answers
2k views

Audio in videos is not always working in Firefox

I have Ubuntu 17.10, Firefox 58.0.2 and PulseAudio installed. However, from time to time audio disappears from videos and I get the following notification on Firefox "To play audio, you may need to ...
19 votes
6 answers
114k views

Firefox html5 video support

How can I get Firefox to fully support html5 video? The YouTube HTML5 Video Player says that H.264 and Media Source Extensions are not supported. Is there any way I can enable all of these?
1 vote
1 answer
4k views

Firefox temporary folder (not cache)

I would like to download big file (over 5 GB) from MyAirBridge.com as free user. This service requires to click on link, then it "prepares download" for several hours but ability to save it on local ...
13 votes
1 answer
18k views

Update firefox to Firefox Quantum

I have heard alot about firefox Quantum, I have downloaded it and it is running fine. But the problem is I want to update my existing firefox which came installed by default, so as to have all my ...
3 votes
1 answer
2k views

no text entry or keyboard capabilities in firefox browser when running in firejail, or regular usrspace after reboot

Ubuntu 16.0.4.3 Gnome Desktop I have no text entry or keyboard capabilities in my firefox browser when running in firejail, or regular usrspace. Running: firejail firefox --noprofile results in a ...
3 votes
2 answers
10k views

Firefox slow down Ubuntu 17.10 as Virtualbox guest

I am testing Ubuntu 17.10 Desktop as a Virtualbox 5.2 guest. The Virtualbox guest additions are installed from Virtualbox Addition ISO. Virtualbox itself is running on a Ubuntu 16.04 host. After a ...
2 votes
1 answer
1k views

FIrefox and Chromium use all RAM and pc freezes

I have a problem that I'm trying to solve for a long time. I'm using Ubuntu 16.04 dual boot with Windows 10: When I'm using several tabs in Firefox or Chromium, I see significant memory usage. One ...
2 votes
1 answer
7k views

Firefox developer desktop icon is missing [duplicate]

When I open Firefox from the launcher there is no icon. When I run firefox from the terminal the icon appears. So far I have tried Unity launcher uses generic icon for Firefox in Ubuntu 12.04, but ...
4 votes
0 answers
1k views

Browser tearing when scrolling

Hi I recently installed Xubuntu 16.04 and am having problems getting browsers to work. I tried using firefox but there was flickering/tearing in horizontal bands across the screen and none of the ...
0 votes
1 answer
1k views

“Copy and Paste into Terminal” Option in Firefox/Nautilus Context Menu for Highlighted Text

How do I add the option to the right click highlighted text and paste to terminal? I want to short cut the action of highlighting commands from documents and web browser, right click and select copy, ...
1 vote
0 answers
90 views

Ubuntu 14.04 is there a way to directly trace an application in real time? [duplicate]

On Ubuntu 14.04 is there a way to directly trace an application in real time? This maybe on here but I could not find a page in search with "Google" or "site search" that I could say applied. I did ...
2 votes
1 answer
163 views

What are the Spectre and Meltdown issues related to FF52esr?

As far as I have read, including USN-3516-1: Firefox vulnerabilities, only FF57 (in 57.0.4) is being updated due to these issues. As some people are using FF52esr (currently 52.5.3), is there any ...
1 vote
1 answer
646 views

firefox won't start after accidental power fail of ubuntu VM

I had a fully working ubuntu 16.04 VM (Oracle VM VirualBox) and had an accidental power fail after which firefox refuses to start. dad@Ubuntu-VM-Pluto:~$ firefox Gtk-Message: Failed to load module "...

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