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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My Facebook doesn't work on Ubuntu 10.10 but works on Windows XP

I have both operating systems installed on my PC, but Facebook only works on XP. I have tried Firefox and Chromium, but it works the first time, but after I log in it doesn't work, and can only open ...
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3answers
17k views

Flash On Firefox

Since Adobe recently dropped support for Firefox on Linux, I can't get flash player to work properly on Adobe Connect in Ubuntu. YouTube videos work fine, I only have problems with Adobe Connect. I ...
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1answer
115 views

Is it safe to browse the web with Firefox during Ubuntu install?

As asked in the title. I clicked on one of the links in the Quantal installer (set up via UNetbootin) and it launched Firefox. Will using it for a longer time during install cause conflict with ...
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1answer
2k views

How can I get the menu bar in firefox?

I installed a fresh ubuntu desktop 11.10 and in firefox there is no menu bar. I tried several things like pressing the Alt key F1-12 right click on a free space in the tab bar but still no menu ...
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2answers
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How do I change the browser that gnome terminal opens links with?

I'd like gnome-terminal to open links with the Chrome browser, but it insists on opening them with Firefox. I've followed both pieces of advice found here without any success: ...
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3answers
945 views

Keyboard shortcut to un-focus form controls

While a form control like <select> or <input> is focused the arrow keys, Page Up, Page Down, Home and End all navigate inside the contents of that control rather than the web page itself. ...
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1answer
2k views

No “Hello” icon in Firefox 34

I've just upgraded to Firefox 34, but cannot see "Hello" icon on Firefox toolbar. I could not find any info on that in Internet. There is no "Hello" icon there in "Additional Tools and Features" ...
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2answers
767 views

Transfer browser tabs from Firefox to Google Chrome

If Google Chrome and Firefox are both running, is there any way to transfer all browser tabs from Firefox to Google Chrome? I want to write a shell script that will transfer all tabs from Firefox to ...
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3answers
403 views

Do I need to be concerned about browser security?

I have been a long time windows user till about thanksgiving when I switched to ubuntu. on windows I used firefox because I could trust the security that it gave. Since malware/virus are next to none ...
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2answers
3k views

What's the default serif font in firefox?

I'm trying to come up with a solid font stack that incorporates fonts typically found on an ubuntu install. font-family=serif looks great, but for obvious reasons, this isn't appropriate for other ...
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1answer
811 views

Firefox & OpenOffice don't use Indicator Applet Application Menu

At present, it seems neither Firefox nor Open Office seem to be using the Indicator Applet Application Menu. Is there a work around/fix committed?
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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 ...
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1answer
3k 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 ...
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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 ...
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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 ...
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4answers
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Libre office (read only) issue

I run ubuntu 10.04 with the latest version of LibreOffice (the one release the other day). When downloading a document - like something in excel in my firefox, and want to open it, it opens up in ...
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2answers
884 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?
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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?
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2answers
858 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 ...
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2answers
4k 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.
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1answer
7k 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 ...
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1answer
301 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 ...
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2answers
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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 ...
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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 ...
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1answer
636 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 ...
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2answers
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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 ...
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3answers
602 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) ...
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3answers
781 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 ...
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3answers
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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 ...
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2answers
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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 ...
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2answers
660 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 ...
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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 ...
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1answer
723 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 ...
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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 ...
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2answers
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Firefox 39 crashing

I already asked this on Firefox support but still no anwer so maybe someone here knows how to fix this. After I updated Firefox to version 39 I can't use it at all, it crashes all the time, I ...
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1answer
1k 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 ...
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1answer
598 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 ...
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1answer
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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 ...
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2answers
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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 ...
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3answers
921 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 ...
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1answer
472 views

High CPU by Firefox

For some days, Firefox has been consuming high CPU percentage while simply loading pages. It drops down otherwise. It often crosses 100% and even goes beyond upto 150% sometimes(!). I ran Firefox in ...
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0answers
551 views

Since update of Firefox v37 internet access is slow

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 ...
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2answers
228 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 ...
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2answers
199 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 ...
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0answers
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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 ...
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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 ...
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2answers
890 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 ...
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1answer
713 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 ...
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2answers
440 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.
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How to stop firefox from downloading files in public computer to its Home/Download folder?

I work in IT-department and we have a situation. We have public computers installed in city library and they are using Ubuntu 12 kind off kiosk operating system. People are opening and downloading ...