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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18 views

Why is not plugin-container focused after leaving fullscreen and then going back

I have been using script which inspected focused window and if it was in fullscreen state the script disabled screensaver. But lately the script stopped working correctly while watching flash videos ...
3
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4answers
1k views

Firefox h264 (mp4) HTML not working after upgrade

So I just upgraded on both laptop + desktop. Desktop = clean install laptop = upgrade from 15.04 Now Firefox can't play h264/mp4 videos on YouTube or other. I have tried a clean profile, which ...
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69 views

Can't install java plugin

I think I did all the proper codes, and I went to the file browser and I see the .so file in firefox's plugin directory. It's just not running... Working. Doesn't show up in plugins, about:plugins, ...
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0answers
29 views

Why is Firefox (on Lubuntu) replacing/adding random letters while typing?

Sometimes after launching Firefox I'll find that while typing, my keystrokes (including modifier keys, not necessarily just letters) are occasionally replaced by random characters -- in the latest ...
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0answers
11 views

cant select “open with other”

I have some html files, and I wanted to open all of them from a folder. I double clicked, and I got a prompt to display in the terminal. So then I tried to right click, and open with Firefox, but that ...
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1answer
56 views

Cant hear duolingo

On my desktop, I have headphones. Sites like facebook, and youtube play just fine, meaning audio works. I started duolingo on my laptop at home, with Ubuntu also. Where on my laptop it works fine. ...
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0answers
24 views

Firefox in 1404 opens a previous full screen window that cannot be sized down

I was viewing video in full screen mode. I could not stop it with Firefox controls. Using ps I found many processes with firefox in the description. I used kill -9 to kill Firefox. Now Firefox will ...
2
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3answers
2k views

ubuntu 14.04 wont play amazon prime videos in fierfox anymore

Before last update it worked. Now I get a "unsupported browser" message.
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1answer
84 views

Firefox ip address randomly changing

I have been using ubuntu for a couple of years now and I have never seen something as strange as this happen before. I went on http://www.speedtest.net/ to test my internet speed and noticed in the ...
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0answers
43 views

How to view a pdf in an Object tag in Firefox 41?

I have Firefox 41, but it doesn't seem to render a pdf wrapped in an Object tag (NOT an iframe). All I get is a grey screen. Is there a specific plugin that can render object tag embedded PDFs?
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39 views

How to view embedded PDFs in a browser on Ubuntu 14.04?

I'm using Ubuntu 14.04 and have tried 3 different browsers (Chrome, Firefox, Chromium) to open an embedded pdf file ("application/pdf") and none of them seem to work. On Chrome I've installed the ...
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0answers
209 views

pfsense dhcp with wpad/pac

i configured the dhcp on pfsense with wpad/pac and privoxy (socks5). In Firefox i entered the automatic proxy configuration url like its in pfsense and everything works fine (all traffic over the ...
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2answers
31 views

System keeps getting hung - Flash error

I open firefox and browse through sites. Sometimes, automatically, the cursor stops moving, I can't use the keyboard too and system is hung. It doesn't go to the command line either. I found out that ...
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0answers
25 views

Using User Agent Switcher

On mathxlforschool.com, often, the default information about my OS (Ubuntu 14.04) and browser (Firefox) makes the website have bugs. When I used my User Agent Switcher to instead communicate that I'm ...
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0answers
51 views

Playing avi stream on Firefox shows plugin not found error

Every time I try to play an avi file on Firefox, it shows this dialog - totem-plugin-viewer requires to install plugins to play media files of the following type: audio/x-avi-unknown decoder It ...
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1answer
36 views

Websites not loading on Ubuntu with different browsers

Outlook.com is not loading after login in Chrome, Konqueror, and Firefox -- only see a blank page after login. I tried a clean install of Ubuntu and other Linux distributions (Fedora, Debian, Mint) ...
2
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3answers
174 views

How to keep Firefox usable without ever closing tabs manually?

When using Firefox on her computer, my wife opens a new tab when starting a new search, and opens links in a new tab when she may want to use the linking page later. However she never closes tabs, ...
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0answers
56 views

Ubuntu Company Certificate Help

I'm new to Ubuntu and have a question. My company uses a custom certificate which is put into the certificate chain. Having this, Firefox always asks me to add an exception and also on the terminal I ...
3
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2answers
404 views

Creating Hello World from a command prompt, and then show results in Firefox [closed]

I want to make simple and quick programs through the command line and then show results in Firefox... And I find that Hello World is the simplest way to learn it :) How can I do it?
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0answers
20 views

websites doesnt load & restricted from accessing?

my company as installed ubuntu 14.04 14.04 LTS ON NEW COMPUTER DEVICE NAME: CTEL-DESKTOP MEMORY 1.9 GIB PROCESSOR INTEL CELERON(R) CPUJ1900@1.99GHz *4 GRAPHICS INTEL BAY TRAIL X86/MMX/SSE2 OS TYPE ...
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0answers
23 views

Cannot play audio in two places on ubuntu 15.04

When I have vlc open firefox crashes when playing media, like youtube videos. similarly when firefox is open, vlc gives me an error message when trying to play media. Why is this and how can I fix it? ...
0
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1answer
25 views

Keyboard shortcut for 'add 1 to URL' in firefox

I'm not sure where the best place is to ask this. In Firefox, you can add bookmarks with the 'urls' of ...
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0answers
14 views

Folders and files lost from my Desktop

All my folders and files lost from my Desktop yesterday. I cannot find them. I wanted to have two multiple Firefox profiles on Ubuntu 14.04 and I followed the following tutorial. After I ran Firefox ...
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1answer
24 views

Firefox Top Bar Always Visible

Something has changed with my Firefox browser where, it always launches in full screen. Then when I put it back to normal (F11), and go to watch a video on YouTube & click the little square in the ...
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0answers
1k views

RTMFP server: connection failed

I am using Firefox 41.0.1 on Ubuntu 14.04 LTS. I installed pepperflashplugin to work on Firefox via PPA to access the options on Adobe Flash Player Settings. Worked fine. But now, I cannot connect to ...
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1answer
79 views

LibreOffice Writer Completely Crashes My Computer

Computer - Laptop | Dell Latitude E6410 | Memory 3.18 GiB | Processor Intel Core i5 CPU M 520 @ 2.40GHz x4 | Disk 241.9 GB Operating System | Ubuntu 14.04.3 LTS 32bit (Left unmodified/as downloaded.) ...
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1answer
115 views

Chrome Magnet Links (Xdg-open fail) - Popcorn time theft

I have tried and tried and tried (i've never actually asked a Q Before, always figured it out) But this is completly messed up so i urge you who have knowledge to help me. On Chrome, Magnet links ...
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0answers
41 views

Using bash to automatically start Firefox' session manager

I start multiple applications on startup through a bash script. One of the applications is firefox: firefox & but firefox also uses the session manager addon so once firefox has started it will ...
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0answers
153 views

How can I upgrade to firefox 41.0 in Lubuntu 14.10?

I'm on Lubuntu 14.10 and I'm trying to update to latest Firefox. Currently I'm at firefox 39.0. I did some sudo apt-get update sudo apt-get upgrade sudo apt-get dist-upgrade All without errors. I ...
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1answer
185 views

Apache 2.4.10 VirtualHost index page not shown

To see my description of my problem directly, see the Problem part. Context: Running XUbuntu 14.10 and Apache 2.4.10. I'm quite new to Apache so I'm trying to setup simple VH...with some success ...
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0answers
61 views

Can't watch Netflix or Amazon Instant Video in Firefox Ubuntu 14.04 [duplicate]

I can use both in Chrome fine. But I recently switched to Firefox and would very much like to watch them there as well; however when I click to start a movie on Netlflix it redirects me to the page ...
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0answers
20 views

Does apparmor in enforce mode still logs?

I'm using apparmor with Firefox (enforce). I know that leaving in complain mode, apparmor will log what a certain program is doing. But I would like to know if it's possible to turn the "enforce" ...
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1answer
215 views

how to update firefox on ubuntu? [duplicate]

The firefox on my ubuntu requires me to update Flash plugin and follow the link I get to the page which ask me to download the latest Firefox package. I download the tar.gz and unzip it. It is the new ...
3
votes
2answers
480 views

How do I get WatchESPN to work?

I've tried Chromium, Chrome, and Firefox. I've tried various flash players (including Adobe Flash). I'm logged in through my cable provide. Still, no dice. I see some very old posts about ...
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0answers
82 views

Bank opening javacript

Recently whenever I login to my bank (before I get to enter my password the page freezes for a while (say 15secs) and I eventually get this message in a box entitled ...
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0answers
254 views

Why is there no hardware accelerated graphics on Firefox 41.0 on Ubuntu 14.04 with Intel HD Graphics 5500?

Could you help me please? I have a problem: hardware accelerated graphics is disabled in Firefox. My specifications: Firefox 41.0 (about:support "GPU Accelerated Windows 0/1 Basic (OMTC)" Ubuntu ...
3
votes
1answer
73 views

Launching a program like Firefox starts 20+ seperate processes on 14.04 LTS draining the memory

When I launch Firefox the normal way and look in at the processes in htop. Ubuntu starts more then 20 processes called Firefox. They all have more or less sequential PID's. The same happens with ...
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0answers
119 views

Videos/Music not playing on firefox/chrome

Complete ubuntu novice, Youtube videos buffer and show the start of adverts but won't unpause from the start, soundcloud also won't play Restarted my PC and it worked for one video then stopped again. ...
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0answers
58 views

Chrome or Chromium retry corrupted/incomplete download file functionality

Is there any functionality available in Chrome or Chromium browser mentioned below: Retry corrupted/incomplete download (from the time it is left) Sometimes because of network ...
1
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0answers
54 views

NoScript syncing?

I have just noticed that after firing up my browser (after a NoScript update) I am getting strange reports of syncing in association with NoScript: When selecting Copy from the right-click menu on ...
0
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1answer
58 views

Problems installing Wget for firefox un Ubuntu 14.04 (along with fireget extension)

I followed the the instructions in HOWTO: install Gwget and Fireget Firefox extension but when I'm trying to compile Gwget (using instruction in the INSTALL file) I have the following error messages ...
1
vote
1answer
219 views

Why won't YouTube in Firefox prevent the screensaver?

I've recently switched from Windows 7 to Ubuntu MATE 15.04, but I'm experiencing some problems with the screensaver (or power saver?), while playing full screen videos on YouTube using the latest ...
1
vote
0answers
134 views

Installed google hangouts plugin, cam not detected

I'm a n00b, so please ELI5 answers. I was using firefox hello and my cam was working fine, then it muted my video on its own. I closed it and tried to use google hangouts. Had to install the plugin. ...
4
votes
3answers
322 views

How to start firefox in safemode?

How to start firefox in safemode using terminal,Because I don't see any safemode option for firefox in Ubuntu
3
votes
1answer
90 views

See Download progress

How can I see download progress in Firefox in Ubuntu 14.04 ?? I can see download progress in windows using CTRL + J shortcut key. Thanks.
1
vote
1answer
82 views

Firefox: ogv and webm video format dont fire

I have problem with ogv and webm video format in my firefox - dont work. Do you have any suggestion why ? In chrome all works nice and smoth. On windows all works fine.
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0answers
107 views

How to force Firefox to prefer WebM over MP4 when both are available in a <video> tag?

There is some problem with MP4 playback on my installation and WebM files are played perfectly. But if the first source in a <video> tag on a page is mp4 it's getting selected automatically. ...
2
votes
1answer
27 views

Certificates on Web with Firefox

How do I update certificates when one has expired? In Firefox on both 14.4 AND Windows 8.1 I am getting a lot of certificate errors- either expired or do not recognize the name on certificate. By ...
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0answers
34 views

QR code not loading in any of the browsers!

There are some sites which are not loading properly in any of the browser like FireFox, Chrome and Opera, specifically those sites which loads QR code like Portal, Whatsapp and some other sites like ...
0
votes
1answer
109 views

Firefox and Thunderbird not starting due to permission issues

After using Firefox and Thunderbird without problems for almost half a year on Ubuntu 15.04, they suddenly did not start any more, neither from starter, nor from terminal. Trying to start from ...