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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2
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2answers
7k views

can't watch flash content in lubuntu

i can't watch flash content in firefox. can someone please help me? I am sorry if this has already been addressed, but i have visited numerous forum posts and tried several different things. My ...
1
vote
2answers
225 views

Firefox default language keeps changing automatically to arabic

I am getting an ongoing issue with Firefox 36.0 under Ubuntu 15.04. Whenever I open Firefox it automatically sets the default language to Arabic, even though having never configured it to use Arabic: ...
1
vote
1answer
3k views

Flash player alternative for firefox

I am searching for an flash player alternative for firefox Yes I am using chrome and I know that it has its own flash version however I am used to Firefox, and it is hard not to have videos in ...
0
votes
2answers
1k views

Firefox keeps crashing on Ubuntu 14.04 [closed]

Since yesterday, every time I visit Youtube Firefox crashes. Also, it crashes on some other video streaming sites (or pages that include a video player like jwplayer for example), but not every time. ...
0
votes
2answers
302 views

Upgrade Firefox fails. lzma error: compressed data is corrupt

Firefox fails to update due to corrupted download (deb) Preparing to unpack .../firefox_32.0+build1-0ubuntu0.14.04.1_i386.deb ... Unpacking firefox (32.0+build1-0ubuntu0.14.04.1) over ...
0
votes
0answers
25 views

Internet Connected but cannot visit websites

My laptop is Elitebook 745 G2 running Ubuntu 14.04, new installed. It has dual OS: Ubuntu and Windows. The internet service works well in Windows, but cannot work in Ubuntu, though it is connected and ...
0
votes
1answer
147 views

Firefox problem at showing some characters - ubuntu 14.10

My problem is what the title says. I show an image to illustrate: Some characters are not displayed and instead that square with random pixels appears. It can happen in any character, sometimes can ...
0
votes
3answers
8k views

My flashplugin doesn't work on firefox

I have ubuntu 14.04. I'm using firefox to browse the web and it worked properly but just a few days ago after I used sudo apt-get upgrade and sudo apt-get update it keeps telling me to install ...
0
votes
0answers
12 views

Firefox: make ctrl+enter submit a form, even if cursor is in a textarea

How can I make Firefox submit a form by hitting ctrl+enter even if cursor is in a textarea? There are some work arounds to enable this, if you create web pages with jquery. But this short cut should ...
1
vote
4answers
66 views

Where/when is the update for Firefox to version 37..?

I checked with Synaptic Package Manager and the latest is 36.0.1+..... 37 was released in March.
-1
votes
1answer
29 views

browser hijacker won't go away after deleting Vista

I recently downloaded Ubuntu and deleted the old OS, windows vista, however, a browser extension called Frontier search has hijacked Firefox and I can't seem to remove it. Please help, all guides to ...
0
votes
0answers
9 views

upstart .conf script not running at startup

I have a .conf file I run at start up. This file runs a script file i have stored elsewhere. But it does not run. Its supposed to launch node.js and two tabs on firefox. When i launch firefox after ...
5
votes
4answers
3k views

How can I change Firefox switching tabs shortcuts?

I was used to press Control+1, Control+2 and so on to switch between tabs in Firefox. Now, in Unity, I have to use the Alt key instead. How can I change that? Thanks!
1
vote
1answer
220 views

Unable to access Microsoft Office 365 on Ubuntu?

My university uses Microsoft Office 365 to manage emails. The sever names are: SMTP: smtp.office365.com IMAP: outlook.office365.com I had been using the email with Thunderbird on my Ubuntu ...
2
votes
1answer
21 views

Pencil 2.0.9 opens a new firefox window instead of the software itself

Pencil Project is being actively developed here. I have firefox installed and I copied the linux package files to their respective folders. When I click application entry in menu it open firefox but ...
0
votes
2answers
39 views

Installed Ubuntu 12.04 - cannot visit certain websites I'm very familiar with

Fresh installation of Ubuntu 12.04, so far everything seems to be working except for this. Using FireFox 23 (the default browser) I get the following message: Not Acceptable! An appropriate ...
2
votes
1answer
3k views

Ubuntu 14.04 System Freezes - Firefox eats a lot of memory with nvidia-prime enabled

I have a clean install of Ubuntu 14.04 on a Dell XPS L502X Laptop with a discrete, optimus-enabled Nidia card. System was working great until I decided to install bumblebee to enable the Nvidia card ...
4
votes
1answer
51 views

Advertisements shown when page is viewed in Chromium but not when viewed in Firefox

The title says it all, i keep on seeing advertisements when i open pages in Chromium, those ads are shown in portions of the page (not popups) usually at the bottom and/or the top of the page and do ...
2
votes
0answers
143 views

Since udpate of Firefox v37 internet access often slow or even timing out while ping & chrome work fine

Before the auto update to Firefox v37 occurred Firefox worked fine on my Ubuntu 14.04 system (ethernet connected to 20Gbps internet up 4Gbps down). My system is 8 core, 32GB ram, ubuntu 14.04 ...
0
votes
0answers
12 views

Firefox Flashplayer suddendly zoomed in

Sometimes when I'm watching Videos on Youtube it just zooms in. I can only see the upper left corner of the video. I'm pretty sure it is a flashplayer problem, since the bar at the bottom (with play, ...
0
votes
1answer
43 views

Can an unmounted USB be infected my malware?

Yesterday, I went on a dark creepy site whose js freezed my system/firefox (Ubuntu 14.04 up to date, Firefox 37.0.1 up to date). Now I tried, from the same system, to find any malware with: sudo ...
1
vote
2answers
37 views

control audio kde plasma after hdmi removal

I am using kde:plasma version 4.13.3 in ubuntu 14.04 and it works great in most ways, but on my laptop I frequently use it as my "media center" pc. I hook it up to the TV through the HDMI port. When ...
0
votes
0answers
13 views

why is firefox hello always on top?

I use firefox hello often and that little panel with the camera, the microphone and the firefox icon is always on top and i cant turn it off or just simply hide it. Are there any possibilities to ...
0
votes
0answers
16 views

Any workaround for broken Firefox 37 view-source?

I've been somewhat disappointed with the new Firefox 37 release on Ubuntu. The worst problem I've had so far was the view-source bug, where it shows what the page used to be. Am I the only one having ...
10
votes
3answers
622 views

Ubuntu Start Page in Firefox Language changed suddenly

Suddenly on the Ubuntu Start Page in Firefox English has been changed to Spanish. How do I reset to English?
2
votes
3answers
89 views

Video quality on Youtube (Firefox) is limited to 360p

I'm finding that the video quality setting on Youtube videos only has the options "Auto" and "360p". My browser is Firefox 37.0.1 and I'm using Ubuntu 14.04 LTS 64 bit, and my motherboard chip-set is ...
1
vote
0answers
25 views

Firefox and Chromium won't display pages correctly

I have recently installed Ubuntu 14.04 LTS so I’m quite new with this OS, so please be patient with me. My Firefox and Chromium was updated when Ubuntu asked to update in software updater, but now I ...
1
vote
1answer
27 views

where is the firefox menu in ubuntu mate?

I recently installed ubuntu MATE 14.04.LTS as OS. most programs bring a menu "below"/underneath the window-"bar" (I am sorry about the unspecific vocabulary, i'm noob) - you know, the place where you ...
2
votes
5answers
198 views

weird malware has infected firefox and chromium

This is so much annoying. I've never experienced it since I'm using linux. This weird adware is pupping up every time I open a .com website and shows ad or redirects the page. In chromium, I'm not ...
0
votes
3answers
144 views

Where is the flash whitelist and blacklist on Firefox?

In Tools--->Add-ons-->Plugins-->Shockwave Flash I selected Ask to activate. Now I need to explicitly allow flash to play on every website I visit. It is possible to Allow and Remember or ...
0
votes
0answers
41 views

Ubuntu 14.04 cannot access same website from one of two computers

My problem is weird. I can access the nhl.com site (and flames.nhl.com) from one box running 14.04, but not the other running the same. This is with Chrome and Firefox on the same wired network. ...
1
vote
0answers
22 views

Firefox locks up on Ubuntu 14.04 when using the address bar

I have a problem with firefox. Every time I type something into the address bar (and it seems only there), firefox freezes and i can not do anything. This happens on a freshly installed Ubuntu 14.04 ...
2
votes
0answers
23 views

How do I recover my firefox tabs?

I reinstalled my Ubuntu, I saved my profile that resides in ~/.mozilla/firefox/PROFILE. I assumed it would restore my tabs after I copied the profile back. History and such is available, but no tabs ...
15
votes
9answers
30k views

Adobe Flash Plugin is vulnerable/outdated but there is no update in Firefox

I am using Ubuntu 14.04 LTS. When I open a site which requires flash plugin (e.g. Youtube), Firefox says This plugin is vulnerable and should be updated. However if I click Check for updates... ...
0
votes
0answers
55 views

Firefox Animations Extremely Slow

I'm building a website with the occasional animation in it, by jQuery and by using CSS3 transitions. I'm wondering why they look so slow compared to the Mac/PC version of Firefox (Which runs ...
1
vote
1answer
79 views

WebEx error: Java is not working

I am trying to join a WebEx meeting. However, when I try to do that, it gives me an error: Java is not working. To have the best experience joining meetings, Java must be installed on your ...
13
votes
4answers
7k views

Disable CTRL+Q in Firefox without keyconfig extension

How do I disable the Ctrl + Q shortcut in Firefox without using the keyconfig extension?
0
votes
0answers
16 views

How to install firefox addon Skip Cert Error silently through automation

I want to install firefox addon Skip Cert Error to skip ssl error for my automation projects running on Linux virtual hosts. However, I want this installation of add-on to be unattended through some ...
0
votes
0answers
9 views

Firefox extension compatible with Unity to show download status in launcher

Are there any working Firefox extension compatible with Unity to show download status? Unityfox was the one I have been using for a long time but it is not compatible with latest versions of Firefox. ...
0
votes
0answers
19 views

Dark xfce themes makes elements black in firefox - userContent.css is not enough

I'm using dark theme for XFCE and along with the DE the default css of firefox has changed. I tried to fix it by creating file ~/.mozilla/firefox/chrome/userContent.css and pasting in some css - it ...
0
votes
2answers
23 views

typing “android” in firefox opens a apache2 Ubuntu Default Page

Whenever I search for the word android through firefox' address bar, a page titled Apache2 Ubuntu Default Page opens up. What is this page all about and what does it have to do with Ubuntu? BTW I'm ...
2
votes
1answer
38 views

Firefox shows all background color as white starting today on all pages

When I started Firefox today all background colors were gone as in the following screenshot: This probably happened because I have set up automatic software updates, so something must have gotten ...
0
votes
1answer
116 views

How to install Microsoft Silverlight on Mozilla Firefox browser in an easiest and reliable way that runs on ubuntu 12.04 LTS 64-bit operating system?

I am using ubuntu 12.04 LTS 64-bit OS on my system. I am using Mozilla Firefox 37.0(**Mozilla Firefox for Ubuntu canonical - 1.0)** and Google Chrome(Version 41.0.2272.118 (64-bit)) browsers on my ...
0
votes
1answer
58 views

Citrix Receiver on Ubuntu 14.04.2 fails with error Entrust Certification Authority - L1K SSL Error 61

Currently I am using ubuntu 14.02.2 64 bit version. My citrix receiver was working fine for a few months. After a few updates ubuntu fails to open the application with the following error: Entrust ...
1
vote
3answers
8k views

Firefox 34 - Black screen playing Adobe flash videos

After upgrading to Firefox 34, Flash videos stopped working. A black screen was presented, with no hint to the problem. Following these instructions and these other instructions, would prove futile. ...
0
votes
1answer
14 views

need help regarding blank javascript pages

I’m using Ubuntu Firefox on Linux. I play a web game and I use about 100 tabs to play it. When I go through the tabs with Ctrl+Tab it will open a window with JavaScript in the address bar and the ...
1
vote
2answers
236 views

FF 37 Ntlm not working

I am using 14.10 I just upgraded my FF from 33 to 37. I have a timecard system at work that uses NTLMv1 I have set network.negotiate-auth.allow-insecure-ntlm-v1 to true I get the Authentication ...
1
vote
1answer
47 views

Firefox first tab weird language

When launching Firefox through Terminal with: firefox I get this output: (process:10923): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed 1427987784903 addons.manager ...
-1
votes
0answers
11 views

Bleachbit -> add firefox

I installed bleachbit on my computer, it did not have Firefox automatically ub the sidebar to delete data within it .. but it did have internet explorer and google chrome. How do I change it to have ...
3
votes
1answer
2k views

Can't add firefox search engines (ubuntu 14.04 & firefox 28)

From the firefox search engine page (https://addons.mozilla.org/en-US/firefox/search/?atype=4), I get the following error alert message when I click "+ Add to firefox": Sorry, you need a ...