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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111
votes
8answers
35k views

How do I install the latest stable version of Firefox?

I want to install the latest Firefox on my Ubuntu (64bit) box. What is the best way to do this? Is there a specific update site or should I download the binaries manually? If doing manually, in which ...
54
votes
3answers
27k views

what is the file: C:\nppdf32Log\debuglog.txt [closed]

Hello Everyone After I updated to 12.04, a file named " C:\nppdf32Log\debuglog.txt" occurs in my home directory, the content of the file is as the follow: NPP_Initialize : called NPP_GetValue is ...
49
votes
5answers
29k views

How do I put a web application on the Launcher?

Sometimes I see pictures of screenshots with people with web applications and nice icons on their launcher, how can I set this up?
31
votes
10answers
2k views

Can I make links to email addresses open Gmail instead of Evolution?

When I click on a link to an email address in Firefox or Google Chrome a "Welcome to Evolution" screen appears. Can I make Gmail open instead, or at the very least disable Evolution from running?
30
votes
4answers
93k views

How can I make Firefox open magnet-links in Transmission?

I can't find out how to make Firefox open magnet-links in Transmission. There is no option to make it the standard program for magnet-links in its properties, and as I am not experienced with the ...
29
votes
4answers
13k views

Is there a work around to get protected Hulu or Amazon Prime instant videos working?

When I went to watch some only episodes of star trek on Amazon Prime, the player would get stuck on updating. I followed the instructions here and doing so actually worked for 3 seconds. It was the ...
25
votes
3answers
11k views

What does the Ubuntu Firefox Modifications extension to firefox do?

I'm presently running Firefox 3.6.8 on Ubuntu 9.04. My Firefox extensions include Ubuntu Firefox Modifications 0.9rc2. I've upgraded Firefox on this install a few times; as far as I can recall, some ...
25
votes
7answers
46k views

Compatible version of “Adobe Shockwave Player?”

Is there a Ubuntu compatible version of the "Adobe Shockwave Player?" I'm running Firefox and when I try to bring up one of my School's websites it says missing plugin. When I click on "Install ...
24
votes
20answers
72k views

How can I access Flash files from streaming websites?

In Maverick, there was an option to download Flash videos from sites like YouTube, Vimeo, etc. by copying the flashxx** file in /tmp directory to another location before closing the window. But in ...
23
votes
3answers
1k views

Why isn't Firefox 8.0 available as an update in the Update Manager?

So recently I've read that Firefox 8.0 is out, thought of updating, opened the Update Manager, refreshed the sources, but there was no uodate. Is there a particular reason for that?
22
votes
8answers
19k views

How do I fix Flash issues?

I am having problems with Adobe Flash in Ubuntu, what are my options?
20
votes
1answer
7k views

Firefox Middle Mouse Button Scroll

How can I get the middle mouse button to behave correctly in Ubuntu? Clicking the middle button does not show the arrow which allows me to scroll the page by moving the mouse. Information: Firefox ...
19
votes
2answers
1k views

Why is natty-proposed suggesting an upgrade to a beta version of Firefox?

Well I loaded up update manager today and it wants to replace Firefox 4.0.1 with 5.0beta5. To double check I fired out apt-cache policy firefox and there it is: ...
18
votes
2answers
5k views

What does “Would you like to install Twitter” mean?

Firefox in Ubuntu 12.10 pops up messages such as (similar messages for Reddit, Facebook, etc.): "Would you like to install Twitter for extra features and quicker access?" What do they mean? What ...
17
votes
0answers
5k views

How can I get Firefox to work with the global application menu? [closed]

I've been following the progress of getting Firefox (and Thunderbird) working with the global application menu, how can I test and follow along it's progress?
16
votes
3answers
7k views

How do I enable overlay scrollbars in Firefox?

I like the overlay scrollbars that come with natty beta 2 by default! How do I enable them on fx4?
16
votes
5answers
8k views

Firefox cannot draw the new Google Maps

Google released the new Google Maps. Unfortunately, it doesn't work on Firefox 21.0 on Ubuntu 13.04. When I open the page, Firefox just draws white grids on the screen. Dragging or clicking the ...
14
votes
4answers
34k views

Moonlight extension not working with new Firefox versions

The web browser I use is Firefox (currently in version 8 in Oneiric). According the Compatibility Check information the Moonlight extension is not compatible with FF8. Anyway, I enabled this extension ...
14
votes
3answers
17k views

High CPU usage while playing Flash

When I play video on YouTube CPU usage rises to 100% in both Firefox and Chrome. What I'm running: Processor Intel Core2Duo E4500 2 x 2.2GHz Ubuntu 12.04 amd64 with latest updates Flash Plugin ...
14
votes
3answers
7k views

Firefox: open downloaded files with system default application

When I download a file with firefox, it always asks me with what program I want to open it with, even when that type of file is recognized by the system, and I can double click on it in Nautilus and ...
13
votes
4answers
32k views

How do I open “apt” links in Firefox on Lubuntu?

Many answers on Ask Ubuntu direct to links like this that in Xubuntu opened in Ubuntu Software Center. In Lubuntu I get this error message: In Firefox-Preferences/Applications cannot see something ...
13
votes
4answers
3k views

Add certificate authorities system-wide on Firefox

I want to add some root CAs that doesn't come with the default firefox on Ubuntu, but I don't know how. I tried adding them to the local certificates with certutil, but it didn't work. It messed up ...
13
votes
3answers
3k views

How can an application (like Firefox) be forced to use a certain network interface?

I've two interfaces: eth0 and wlan0 on a notebook. Possible use cases: eth0 grants me Internet access, and wlan0 is currently connected to a router which does not have Internet-connectivity. For ...
12
votes
6answers
2k views

Firefox “clone” for Ubuntu

In Windows I use, beside the main Firefox installation, one or even two "Firefox clones" for different purposes (specifically oriented addons and configurations, light configuration without addons, ...
12
votes
8answers
1k views

Ubuntu Philosophy Question [closed]

I was just switching from Windows to Ubuntu and I started to read this. And there were quite a few things I did not understand. One was: "OpenOffice decided not to have a learning curve" ...
12
votes
6answers
10k views

Can I change the Firefox menu to look like the Firefox menu in Windows?

Why Firefox's main menu is different in Ubuntu (10.04) and windows 7 ? Is different main theme?. Can I change the Ubuntu Firefox menu to look like windows 7 menu?
12
votes
3answers
25k views

How do I launch a remote firefox window via SSH?

When I SSH to a remote box $ ssh -X remotebox then start firefox on the remote box remotebox$ firefox and I have firefox running on my local machine, a local firefox window will open. no firefox ...
12
votes
4answers
4k views

How to know each TAB memory usage ?

Hi, is it possible to know that, if Firefox or any browser is opened, whats the amount of memory taken up by each TAB of web-browser ? I am just curious to know.
12
votes
1answer
2k views

How can I use Firefox's built in PDF viewer?

I downloaded firefox 19 and executed it on my Ubuntu 12.04 machine. I went to a website with pdf links, clicked on one of them, hoping to have it shown in the built-in pdf viewer in Firefox 19, but ...
12
votes
5answers
12k views

How to hide Firefox titlebar in Gnome Shell?

I am running Gnome-shell 3.2 in Ubuntu 11.10. Is there a way to hide the firefox title bar and make it like Chrome's ? I would need the min/max buttons in tab-bar. There was a tutorial in webupd8, but ...
12
votes
2answers
3k views

How to use American English spelling dictionary in Firefox?

My Firefox spellchecker was complaining this morning that I spelled 'neighbor' in the American English style, not the British English style ('neighbour'). Same is true for color (colour), analyze ...
11
votes
2answers
9k views

How do I play movies on Google Play?

When trying to play a movie I purchased from Google Play, the movie player (same Flash-based one used by YouTube) spits out the following error message over a background of faux-TV-static: An ...
11
votes
6answers
33k views

Removing Firefox in Ubuntu with all add-ons like it never existed

I have been using firefox for a long time in Ubuntu, I downloaded some add-ons but it made firefox extremely slow, even if I remove them nothing will change. I tried to remove firfox also but ...
11
votes
3answers
2k views

How can I change Firefox's default dictionary?

It's aboot time I asked this one. Firefox thinks I'm Canadian. I've got absolutely nothing against Canadians and their spelling is a lot better than Americans' but I don't spell specialised with a z. ...
10
votes
3answers
95k views

How to install Flash player on Ubuntu?

My work supplies me with a laptop so I have converted my old laptop for my kids to play on. I use Linux mainly as a deterent against WinDoz viruses. Even though I have the latest Adobe Flash player ...
10
votes
3answers
1k views

Should I use No-Script?

I hear that web-browsing is the most likely origin of malware on a computer these days. I also hear that one doesn't need to worry about viruses on Linux. So, should I use a browser extension that ...
10
votes
3answers
7k views

Configuring Firefox to use a proxy from the command line

I'm looking for a way to tell Firefox to use a proxy in Ubuntu Ludid (10.04.1 LTS). I'm installing Ubuntu semi-automatically on several identical machines. For this, I use a script that, amongst ...
10
votes
5answers
911 views

Emacs keybindings for textboxes in firefox?

I'm so used to emacs that sometimes, when I'm typing something in a textbox in firefox, I sometimes try and do C-p to move up a line. It is seriously annoying to have to cancel a print dialog box ...
10
votes
9answers
4k views

How to run TurboTax online?

I want to use TurboTax online to do my Income Tax but apparently Ubuntu (or any other flavor of Linux) is not supported. Is there any way around this? I have Chrome and Firefox but both get the "Not ...
10
votes
1answer
7k views

How do I manually add sites to Firefox's Speed Dial?

Firefox now has a Speed Dial you can use in its New Tab page, and it automatically populates it with sites that you visit often. These can then be pinned in there if you always want them visible. But ...
10
votes
5answers
6k views

Slow internet browsing in Ubuntu

I have a dual boot set up with Windows and Ubuntu. When I'm using Windows, web browsing is a lot faster than when I'm using Ubuntu and I don't know why. It's like there's just a big latency rather ...
10
votes
4answers
6k views

How can one make firefox ignore my GTK theme entirely?

I have a dark gtk theme installed in my ubuntu 10.10 install and a persona installed for firefox that I also like. The problem is that firefox is using my dark GTK theme for items like buttons and ...
10
votes
1answer
355 views

How to prevent Firefox from trimming the URLs on the address bar?

At some point fairly recently, the URLs shown in the Firefox location bar dropped the protocol prefix -- urls appear as "askubuntu.com" not "http://askubuntu.com" -- if the site is https://... the ...
10
votes
3answers
13k views

Why is Firefox so slow?

After updrading to ubuntu 12.04 LTS (on a DELL Studio XPS) firefox is not working like it should. It takes a lot of time before launching (> 20 seconds) and the application is abnormally slow, not to ...
10
votes
1answer
237 views

When will Firefox 5 be in the official repositories?

Firefox 5 has been released today, so I want to know when Firefox 5 will be in the official Natty repositories. I don't want to upgrade using a PPA.
10
votes
2answers
7k views

How do I downgrade a package?

I just upgraded to Firefox 5 to find out that Selenium does not work on it. I'd like to downgrade to Firefox 4 but haven't found a way to do this. How do you downgrade to Firefox 4 on 11.04? Thanks ...
9
votes
5answers
24k views

How can I tell whether my Firefox is 32 bit or 64 bit?

I have a 64 bit Ubuntu. For the preinstalled Firefox i had to download the 64 bit plugins (flash, java), the 32 bit plugins didn't work. Then I downloaded Firefox from mozilla.org, which just has one ...
9
votes
5answers
19k views

How to open magnet links from firefox with deluge

How can I open magnet links with firefox? I tried setting following values in about:config, network.protocol-handler.app.magnet -> /usr/bin/deluge network.protocol-handler.expose.magnet -> true ...
9
votes
1answer
2k views

How to embed evince in firefox 4?

I installed mozplugger and created the file mozpluggerrc with the following content according to this post but when I open a .pdf it opens in a separate evince window. is there a way I can truly ...
9
votes
4answers
4k views

Disable CTRL+Q in Firefox without keyconfig extension

How do I disable the Ctrl + Q shortcut in Firefox without using the keyconfig extension?