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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19 views

WebGL not working

I have Ubuntu Mate 15.10, and Firefox 44, and I am trying to play eyewire from eyewire.org. Persistently I get errors. I have tried modifying the WebGL options in about config to force webGL to run, ...
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0answers
7 views

How can I find out why/how Firefox under Kubuntu 16.04 allows cookies from sites I have blocked?

I have blocked the site exactly as how the domain is specified in the cookie itself. I have also blocked the domain with a wild card. Still it is able to create cookies in my browser. How can I ...
0
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0answers
112 views

Firefox + streaming video (m3u8 playlist)

I'm running a fresh install of Ubuntu 16.04 with Firefox 47. I'm finding that streaming HTML5 video does not play inline in the browser when a <video> tag is used that specifies an m3u8 ...
2
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0answers
52 views

spaces affect the firefox commands in terminal [closed]

firefox -private & This command open private browsing . but the same command firefox -private& without space between ampersand and the -private option will only open normal browsing ...
1
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2answers
140 views

ubuntu 15.10 firefox 47 java plugin weirdness

I have just updated my system to use oracle java 8 build 91 (latest and greatest) and can't get the firefox plugin to work. Every time I try to verify it, it crashes. When I tried the approved ...
0
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0answers
32 views

How can I get youtube's notification bell icon for comments working on firefox/16.04?

On Firefox, youtube's notification bell icon does not display the number of unread messages. If I click on the bell, it says "Please sign in to view your notifications." even though I am signed in.
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0answers
95 views

How to uninstall ffmpeg installed via Firefox addon YouTube Video and Audio Downloader 0.5.2?

Firefox Addon YouTube Video and Audio Downloader 0.5.2 URL is https://addons.mozilla.org/firefox/addon/youtube-video-and-audio-dow/?src=api. After ffmpeg is installed, YouTube Downloaders (YouTube-dlg,...
3
votes
2answers
41 views

Firefox opens downloaded PDFs in File Roller

When I download a PDF and try to open it from the Downloads window, it will attempt to open it in File Roller, which will complain that about PDF not being a supported archive type; I'd like to open ...
-2
votes
2answers
61 views

Why http://openbittorent.com/ can't be opened with firefox?

I have set global proxy with shadowsocks in my openwrt. Now almost every web page can be opened in my firefox. It is so strange that http://openbittorent.com/ can not be opened. It can be pinged in my ...
1
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0answers
23 views

Rolling back an application upgrade

I don't think an actual rollback or system restore exists in Linux/Ubuntu, so I'm looking at other options to reverse a recent browser upgrade. I would like to revert to a slightly older version of ...
4
votes
1answer
68 views

How to increase text size systemwide including browsers ubuntu?

I have a new laptop which is 1920x1080 width(15') . The thing is text size in display is very small which puts a strain on my eyes. I changed the text size inside ubuntu through system settings-> ...
0
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0answers
9 views

Force Epiphany to open links in default browser

I use Firefox as my default browser and I started using Epiphany for web apps (I use it fox google inbox) as I prefer it as a separate window with it's own icon. What I don't like about it is that ...
2
votes
1answer
41 views

Firefox scrollbars don't reflect Widget theme selection

[This question is similar to another one (for Ubuntu vs Lubuntu) where there was no real answer other than to look for other Firefox themes -- something that has not worked for me in the past. At any ...
0
votes
1answer
67 views

FireFTP Plugin in Firefox Stopped Working Suddenly

On my Mac, I load an Ubuntu VM 14.04 LTS via VirtualBox. Inside that, I load the Firefox browser and the FireFTP plugin. Without changing any settings on my Mac or Ubuntu, and after having a couple ...
0
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0answers
39 views

Firefox fails to start after upgrading

I was running Ubuntu 15.04. Knowing that the newest version is 16, I tried to upgrade today. In the update setting in Software Center I've chosen "Any new Ubuntu version". Then I run "sudo apt-get ...
0
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0answers
12 views

Uploading files online: external drives not visible ubuntu 16.04

First here's what I'm using. Ubuntu server 14.04. Ubuntu client 15.10 and 16.04 both recently updated. Mozilla Firefox as browser. I have a problem When uploading items online. When browsing files ...
1
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1answer
71 views

HTML5 for Firefox 46.0.1 Ubuntu 12.04.5 Lts

I am a new user (ie. please be detailed). I have this version of Firefox : 46.0.1 installed and recently learned how to install Flash Player with great difficulty. Now I realize I cannot watch via ...
1
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2answers
50 views

Ubuntu doesn't display fonts properly on some sites like Facebook

I had the same issue on OpenSUSE. ms fonts is installed. Tried with the following 2 browsers: Firefox Chrome
3
votes
1answer
28 views

Firefox on Lubuntu opens half of its height on startup and then maximizes

Couldn't come up with something better for the title. But I'm trying to explain it better (and the GIF below explains it even better graphically). So, when I open Firefox on Lubuntu, no matter if ...
0
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0answers
56 views

Firefox crashes randomly

This happens 75% of the time whenever I open a page: Add-ons: ubufox%40ubuntu.com:3.2,%7B972ce4c6-7e08-4474-a285-3208198ce6fd%7D:47.0,firefox%40getpocket.com:1.0.2,loop%40mozilla.org:1.3.2,...
1
vote
1answer
92 views

Does Brave browser have ability to sync bookmarks like firefox login mechanism?

I am using Firefox for a long time. But it causes high CPU temperature. Sometimes even it raises to 150-200 %.But Brave causing less CPU usage. I would like to import all the bookmarks in Firefox to ...
0
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0answers
26 views

file attachments (i.e. in mail) do not work after system update

I recently upgrate my kubuntu machine and currently I am using Linux version 3.13.0-88-generic (buildd@lgw01-16) (gcc version 4.8.4 (Ubuntu 4.8.4-2ubuntu1~14.04.3) ) #135-Ubuntu SMP Wed Jun 8 21:...
0
votes
1answer
58 views

How to change Firefox drop-down menu color?

I've got the same problem as in that question: after the system update, Firefox drop-down menus became black. How can I change their color back to white? (I'm opening a new question because that ...
4
votes
1answer
116 views

How to open 'Magnet' style torrent links from Firefox in rtorrent?

I am using the commandline torrent client rtorrent under Xenial Xerus and I would like to: Find and click on a 'Magnet' style torrent link with Firefox Have the 'Magnet' link opened automically in ...
2
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0answers
31 views

Install Firefox beta and stable together not sharing my firefox profile?

I don't know know the best way to do this I would like to have firefox beta and stable without sharing my profile, and have firefox beta in app menu on unity dash?
1
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2answers
68 views

Can you empty cached items from memory without needing to close Firefox?

I currently have Firefox set up so that a persistent cache is not stored after closing Firefox. I only have the memory cache enabled which it empties when Firefox is closed. Sometimes I need for ...
1
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2answers
96 views

ssh-tunneled SOCKS proxy connection refusals on Firefox 47.0 / Kubuntu 16.04

I am having difficulty making connections to websites using Firefox over a tunneled SOCKS proxy. SOCKS4/SOCKS5 makes no difference. I set up the tunnel with ssh -D 1234 id@remotehost.example.com ...
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0answers
62 views

Unable to open torrent sites in firefox on ubuntu

I am unable to open torrent websites using Ubuntu 14.04 but it working well in my Windows. I have a dual boot system and I'm new to Linux distros. While opening the message it shows the following ...
1
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1answer
176 views

I cannot watch streaming video with firefox 47.0 on 14.04

I am able to use Firefox to watch videos on some sites such as Youtube or Dailymotion (perhaps these are HTML5?) but I cannot watch video or listen to streaming audio on sites such as cnn.com, cbc.ca ...
0
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0answers
78 views

Firefox 47 not starting on Ubuntu 14.04.4 LTS64 bit Trusty

I am unable to run Firefox 47 with Xvfb on Ubuntu 14.04.4 LTS 64 bit Codename Trusty. I have installed this VM on Windows 7 host with vagrant and Virtualbox as provider. I have problem running google-...
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0answers
31 views

Which folders from /home should I move to a SSD?

I recently bought an 128GB SSD for my laptop. After moving everything in / to the SSD I still have 95GB left on it. Now I was thinking about moving some of the content of /home/ to the SSD. As far as ...
0
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1answer
125 views

I can't update or remove java 10.67.2 plugin in firefox 47.0

When I click on (plugin) update now it is blocked and I am re-directed to the update now button to update Java. I updated Java to version 8 update 91. I followed the instructions about removing the ...
1
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0answers
77 views

How to re-install and activate fonts

I am using Ubunut 16.04 LTS. I have noticed that after each update of the system, firefox and chromium browsers not recognizing previously installed fonts ( windows and Mac fonts ). Is there any way ...
0
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1answer
67 views

Lubuntu - I can't play videos from YouTube using Firefox but in Chromium I can

I just switched OS from Windows 10 to Lubuntu 16.04 so I'm fairly a new user but not that hard to teach. Anyways, my problem is simply in the title... I know Google is my friend but I don't know what ...
0
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0answers
33 views

How do you cancel an installation of Chromium web browser in unbuntu?

I downloaded chrome from the preloaded firefox browser and deleted it to replace it with chromium web browser from the software center because chrome was from a third party. The Chromium installation ...
3
votes
1answer
62 views

How to prevent Firefox updates per app version (preferences outside of profile folder)?

Firefox on Ubuntu 14.04 just updated to v 47, and it broke some of the stuff I was working on. That is however no biggie, I thought, because I can just download the previous version, and work with it, ...
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0answers
18 views

Can't login to or with Google in Firefox of Lubuntu: Redirect loop

I get locked into a redirect loop whenever I try to login to Google and also here at Stackexchange when I want to login with Google. I type in my email address, get the proper naming and add my ...
1
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0answers
42 views

Firefox can't display math in wikipedia.org

When I try to open a wikipedia page with equations I see just blank space in their place: Although I can see png and image files in other wiki pages. I checked permissions in Tool > Page Info and ...
3
votes
1answer
52 views

Disable partners key in url bar [duplicate]

How I can disable in Google client=ubuntu (in DDG t=canonical) in Firefox 47? See screenshot: UPD: That's all what i find about subj, >strings /usr/lib/firefox/libxul.so | grep "client=" -n ...
1
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0answers
62 views

Firefox Linux problem

Firefox – Linux – Kubuntu Problem All mouse over text boxes are black. This occurs on all menu bar, bookmark tool bar, status bar and history icons and bookmarks. This started a few weeks ago. No ...
2
votes
0answers
19 views

How to dispatch clicked URLs to specific browser based on domain (as OSX Choosy does)

I am trying to replicate the functionality of Choosy (https://www.choosyosx.com/) under Ubuntu 16.04. In particular, I want to have it set up so that when I click in a non-browser application on a ...
0
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0answers
16 views

Firefox opens external PHP links as files in new tabs in lubuntu

In a fresh install of Lubuntu Firefox refuses to handle javascript constructed external calls with the PHP extension as part of a natural HTML page as most browsers do. Instead it attempts to open it ...
1
vote
1answer
34 views

How might I run web browsers from separate spaces (sandboxing)?

Situation: In web development I need to be logged into an application as an administrator, normal user, unauthenticated user etc. I'd like to have a set up where each browser window is unaware of the ...
1
vote
0answers
81 views

16.04 image tearing and lagging

On ubuntu 16.04 when I watch movies in Kodi if I press the volume up/down hotkey I see little stutter in movie (cca les than a sec). And also if vlc is open and ff in background with YT I see image ...
0
votes
1answer
32 views

Firefox updated preferences & addons without asking?

I'm using Ubuntu 14.04 and Firefox 46.0.1. FF (Firefox) was completely closed. Then I opened it and suddenly: Several (about 5) tabs were automatically opened which were related to my addons. The ...
4
votes
1answer
52 views

Sync list of custom words in spell checker

Is there a way to sync the list of custom words I added to the spell checking dictionary of firefox? I would like to sync this list to a different pc. It would be even better if I could sync this to ...
1
vote
1answer
150 views

Using flash player on a 32-bit machine

This is kind of two problems bundled together. I'll focus on only one and I'll try to be as specific as possible: I don't have flash player installed on Firefox, I started looking and it turns out ...
0
votes
1answer
77 views

Remove adwares ( taboola, outbrain etc ) from Chrome/Firefox on Ubuntu

How to remove "around the web" by outbrain or recommended by taboola from google chrome or firefox on ubuntu ? I tried removing content of rm -r ~/.config/google-chrome install and re-install ...
0
votes
1answer
31 views

Keep minimized windows minimized when restarting an app (Firefox)

I'm running Ubuntu Gnome 16.04 and I usually have multiple Firefox windows open, some of which I keep minimized for later use. When I close Firefox and start it again, those minimized windows are ...
0
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0answers
2k views

Error: cannot open display firefox in linux

When I run firefox in bash, I am facing this : Error: cannot open display or Error: GDK_BACKEND does not match available displays I installed xauth , xorg etc. But did not resolve my problem. I try ...