Mozilla Firefox is a free and open source Gecko-based web browser. It is the current default for the Ubuntu desktop.

learn more… | top users | synonyms (3)

5
votes
1answer
3k views

How to update Mozilla Firefox web browser on 64-bit Ubuntu 12.04 LTS in a safe, secure, reliable, efficient and easiest way?

I'm using 64-bit Ubuntu 12.04 LTS on my machine. Currently, I'm using Mozilla Firefox 33.0(Mozilla Firefox for Ubuntu canonical - 1.0) I'm not getting update option in menu Hrml->About Firefox but ...
5
votes
1answer
6k views

How to use Xvfb in Ubuntu 14.04 with/without RandR?

I try to run Unit-Tests with Selenium running Firefox on my Ubuntu 14.04 Server. And I'm using Xvfb as described in this blog to simulate a virtual display to show Firefox in. But Xvfg somehow ...
5
votes
5answers
30k views

can't use flash in ubuntu 13.10

Since I upgraded to ubuntu 13.10, my flash isn't working anymore in firefox or opera. It only works in Google Chrome as it is included in the browser. I did check that I have flash plugin for firefox ...
5
votes
1answer
2k views

aptitude (apt-get) always crashes

I'm using Ubuntu Quantal. I've recently updated and now my kernel is 3.5.0-23-generic. After upgrade my NVIDIA driver stopped working... no problem! I re-installed it and now it works. Now I ...
5
votes
2answers
2k views

Cannot find firefox in Lubuntu desktop

I have just installed lubuntu-desktop on top of ubuntu 12.04. I understand that chromium is the default browser in lubuntu but I was expecting Firefox to show up under the Internet menu. It is ...
5
votes
3answers
2k views

Fonts in Firefox weird after installing kubuntu-desktop

I've installed KDE with the intentions to try it out, but now, after removing it and going back to Unity, I noticed that the fonts in Firefox are still like in KDE. How can I revert the font type to ...
5
votes
2answers
863 views

How to modify the Firefox homepage in LiveCD for every new user?

I have made a custom Ubuntu LiveCD with UCK. How do I modify Firefox's homepage?
5
votes
1answer
399 views

What is the “desktop couch scratch” folder?

What is the "desktop couch scratch" folder, and what do I do with it, if anything?
5
votes
2answers
796 views

How can I change the default download action to gnome-open in Firefox?

Firefox determines which program to use to open a download based on the download's MIME type. More information on that can be found in Mozilla's online documentation. It seems to me that when Firefox ...
5
votes
2answers
3k views

Installing a .cer file

I have a cert.cer certificate file for my Mozilla Firefox. I don't have any clue how to go about installing it for my system. Any guidance would be of great help.
5
votes
1answer
6k views

firefox shows only blank screen when opening new pdf

I use ubuntu 12.04 with firefox and adobe pdf plugin. Since ubuntu 11.04 upto 12.04 i have the problem that i can open only one pdf file in the browser. After closing the pdf, firefox only shows a ...
5
votes
1answer
293 views

How do I turn “sudo apt-get” text into clickable download links in Firefox?

In support forums, tech blogs or any other website, one may encounter some instruction similar to the following: Type sudo apt-get install sl in a terminal window, enter your password en you ...
5
votes
1answer
2k views

How can I change the hotkey to Firefox's Search Engine field (next to the address bar)

In the Ubuntu version of Firefox, the keybinding to the the Search Engine text-box (next to the addressbar) is different to what I am used to (in the Windows version). Can I change this key form ...
5
votes
1answer
4k views

Can I use the Aurora PPA to install Firefox Developer Edition?

I would like to get an auto-updating version of Firefox Developer Edition rather than a once-off installation. From comments on the announcement and this Mozilla ticket it appears that Firefox ...
5
votes
2answers
3k views

Ubuntu 14.04: Videos refusing to go fullscreen and freeze on Firefox

In Firefox on Ubuntu 14.04, just upgraded from 13.10, I can't make any video full screen without issues. When I tried it usual do this: video freezes, and sometimes you can hear the audio, but not ...
5
votes
3answers
2k views

Slow and laggy scrolling in Firefox with FGLRX installed

I have ubuntu 13.04 and kde 4.11.1 My problem is that firefox scrolling is slow and laggy. I'll give you some more information: Firefox 23.0 my video card is an ATI HD6870 and I have the FGLRX ...
5
votes
2answers
1k views

How can I re-enable the global menu in Firefox?

Until recently, Firefox on my machine used the standard Unity global menu. However, recently the menu is no longer global and, strangely, is centered. See this screenshot: firefox-globalmenu is ...
5
votes
1answer
633 views

Firefox 7 starts with an empty “Alert”-Window and browsing does not work

Today, after I started Ubuntu (11.04) I noticed this window immediately after running firefox: As you can see it is empty. No information about what is probably wrong. I closed the file and tryed ...
5
votes
2answers
3k views

How can I enable fast printing from Firefox/CUPS using Dot-Matrix-Printer

We are doing printing from a firefox pop-up window to a 9-pin dot matrix printer, to make printing inexpensive for our application (Epson Lx 300+, Lx 300+ II family). As of now, I used IBM Pro ...
5
votes
3answers
469 views

Unbearably Slow Network Performance in Chrome/Firefox (14.04)

I've been tolerating miserable performance on my Ubuntu desktop for some time and am finally taking the time to look into it. Symptom: Using a web browser (Firefox or Chome; doesn't seem to matter) ...
5
votes
3answers
740 views

Adding x-scheme-handler without a popup in firefox

I have written a simple application which registers an "x-scheme-handler" in the .desktop file. Something like this:- [Desktop Entry] Name=Foo Exec=/usr/bin/foo %u Type=Application NoDisplay=true ...
5
votes
3answers
3k views

How to teach firefox to open rar archives

When I click on the .rar file in Firefox it offers either to open it with a default application or to save it to disk. However, the default app for .rar is set to gedit (?) So how do I change that, so ...
5
votes
2answers
957 views

how tell Thunderbird to open links in a certain Firefox instance?

I'm using Firefox and Thunderbird profiles for different activities and have them running as separated instances (processes) on different virtual desktops. This works great in general. But a big ...
5
votes
2answers
618 views

Slow Resume After suspend having chrome running with many tabs

I usually use chrome and Firefox for browsing. I also open many tabs (around 40 in both some times). The problem I have occurs when I resume the PC after having suspended it: It takes from 2 to 5 ...
5
votes
1answer
1k views

Enable thumbnail preview when uploading files in Google Chrome/Firefox?

I have google chrome and when I upload photos to Facebook or Imageshack I cannot find a way to show thumbnails, only detail view. I also tried this in Firefox. This is quite important as it is ...
5
votes
1answer
695 views

Autoproxy's auto mode doesn't work

I don't if this is the right place to ask this question, so please let me know if I can get better answer elsewhere. I just moved to Ubuntu 11.04 from Windows Vista. I've been using Firefox ...
5
votes
1answer
1k views

How do I switch Flash players?

Firefox shows that I've got Gnash installed, but in Synaptic I have the most recent Adobe Flashplayer. I've been having trouble with Flash content not working, and I'd like to try switching to the ...
5
votes
1answer
591 views

Text colors in unity

If I want to try out a different GTK3-Theme using the Unity Shell, I always have troubles with colors of the text. Many themes seem to have trouble with upper bar using similar text colors (i.e. black ...
5
votes
1answer
1k views

What's the ultimate way to install debug Flash Player in Firefox?

What's the easiest way to get a debug Flash Player (the one you can download from here, though I don't care if it's downloaded automatically) working in Firefox? 64 bit system, default Firefox from ...
5
votes
2answers
2k views

Menubar text color and firefox black making is unreadable with Ambiance. How do I fix this?

Ever since I purged kubuntu-desktop from my ubuntu installation, my firefox menu bar text changed to black. I now have trouble using firefox with the ambiance theme. Is there a package or something ...
5
votes
3answers
883 views

Cannot enable Firefox “submit crash report” option

Inside Firefox, I try to check the box in Edit->Preferences->Advanced->General which says Submit crash report, but each time I close the browser and open it again it remains unchecked. What could be ...
5
votes
2answers
203 views

Is it possible for Adobe Flash to kill my GPU?

The question Is it possible that Adobe Flash in Ubuntu 12.04 on Firefox could damage my GPU? History So... there I was, using my beloved Ubuntu 12.04, Doing some PHP/Javascript/HTML development in ...
5
votes
2answers
171 views

How do I disable the fourth button on an Apple Mighty Mouse?

I have an Apple Mighty Mouse, but it's been banged up a bit. The side buttons (4th buttons) are way too easily pressed. When I'm using Firefox, the 4th button can accidentally click and I'd go back ...
5
votes
0answers
49 views

Visiting launchpad.net in browser causes icon to appear in launcher, how do I remove it? [duplicate]

Possible Duplicate: How do I remove a website from Ubuntu’s web applications? Using Ubuntu 12.10 with Unity. I think I agreed to install a Launchpad add-on in Firefox the first time I ...
5
votes
3answers
1k views

Why is Firefox on Ubuntu choppier than Firefox on Windows?

I have nvidia driver on both OSs. Same FF version. Both with smooth scrolling enabled. Using FF in windows is a big joy! It's so smooth, like a hot knife slicing butter. Ubuntu's FF is somewhat ...
5
votes
2answers
835 views

Ubuntu tweak and Mozilla (firefox and thunderbird) cache

I usually use Ubuntu tweak to do cleanup jobs on my PC. This includes apt and program cached data and old kernels. This goes alright for most programs except Mozilla based application - Firefox and ...
5
votes
1answer
705 views

Firefox global application menu in Classic Desktop? [closed]

I am using Natty without unity, but I am a fan of the global menu applet. Unfortunately, it does not work for Firefox 5 (and other programs that draw them themselves). How can I activate the special ...
4
votes
2answers
390 views

How to show list of installed extensions for firefox via command line?

What is the command line to show the list of all installed extensions on the firefox browser? Is there any. I checked man firefox but did not help.
4
votes
3answers
4k views

Is there a way to lock my browser with a password?

It would be OK if it was only with my login password, but I would like to lock both midori and Firefox so that they cannot be used without entering a password. I'm running 12.04.
4
votes
2answers
13k views

How to integrate KeyPass2 and Firefox using Keefox/PassIFox in Ubuntu 13.04 & 13.10

I have already Installed KeePass2 and also installed both Add-ons Keefox, PassIFox. But I don't know how to integrate it. Pls help me with the instructions.
4
votes
4answers
12k views

Running 32-bit Firefox with sun-jre in 64-bit Ubuntu [duplicate]

I am trying to run juniper networks connect program to vpn into work and it only works on 32bit sun jre. All the things I have found with google failed so far. I can't use any scripts, like ...
4
votes
1answer
3k views

How can I stop Firefox throwing a NS_ERROR_FILE_CORRUPTED error?

I had a powercut last night and ever since then when I try to access the Ask Ubuntu Chat, I see the following error in Firebug. Component returned failure code: 0x8052000b (NS_ERROR_FILE_CORRUPTED) ...
4
votes
2answers
4k views

Flash debug player installation problem

Standard Version: When I download the player without the debugger from here and place the libflashplayer.so file into the ~/.mozzila/plugins/ directory the player works fine. Debugger version: But ...
4
votes
2answers
393 views

Is running an add on like “No Script” in Firefox needed on a linux system? [duplicate]

Possible Duplicate: Should I use No-Script? A friend recommended the "No Script" add on for Firefox, however this friend runs a windows system. Is running "No Script" on a Linux system ...
4
votes
1answer
1k views

How can place Firefox’s tab close buttons on the left?

I would like to make Firefox fit more to the Ubuntu default themes Ambiance and Radiance. Therefore I would like to place the tab close buttons on the left instead of the right of each tab. I found ...
4
votes
4answers
4k views

Does Firefox have something similar to ActiveX in terms of security vulnerabilities?

People always say that Linux is more secure than Windows. The main reason seems to be the general system design philosophy and the fact that users are users and not root. One main security concern ...
4
votes
2answers
3k views

There isn’t a software package called `adobe-flashplugin` in your current software sources

I am trying to install the adobe-flashplugin on Ubuntu 14.04. On Adobe's site I choose the "APT for Ubuntu 10.04+" option. It opens Ubuntu software Center, but it tells me There isn’t a software ...
4
votes
3answers
4k views

How to launch different firefox profiles via the keyboard using Unity

I'm a heavy user of firefox profiles - a general one, work and one just for facebook so facebook doesn't know where I'm browsing. I have customised my firefox launcher icon to give me access to ...
4
votes
2answers
8k views

How can I join a Skype Public chat via links?

In Windows, I can join a Skype Public chat by pasting a Skype chat link into a web browser's address bar (or clicking a link which contains that URI), but it doesn't work in my Ubuntu 10.04 using ...
4
votes
3answers
1k views

How to disable the warning sound when closing firefox

I appreciate to be warned when I try to close Firefox with multiple tabs open, but I really don't want to hear the warning sound. How can I disable the warning sound for firefox? Thanks in advance.