Questions tagged [firefox-extensions]

Firefox add-ons that provide additional functionality

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If I add chrome/firefox extension under my user, will it affect other users?

I want to severely restrict my internet access. For my personal computer (which uses windows 10), I am happy with the solution provided by ColdTurkey. However, through x2go I can also log into my ...
user3704545's user avatar
1 vote
0 answers
5k views

Why does Gnome Shell Extensions not work with Firefox in 23.04?

I'm trying to use GNOME extensions in Firefox, but it doesn't seem to work. I keep getting the error No such native application org.gnome.chrome_gnome_shell. I've followed the installation guide on ...
Nezun's user avatar
  • 19
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1 answer
368 views

How to add userChrome.js and config-prefs.js to firefox snap

I'm tyring to follow this guide on github https://github.com/tsaost/autoload-temporary-addon I'm trying to add the files as described in that repo. Their are two files that need to be added. config-...
gnarlyninja's user avatar
2 votes
0 answers
287 views

Firefox right-click opens context menu, but selects tabs instead

At first when I installed Ubuntu 20.04 LTS, firefox was working normally. There had been some issues with the on-screen touchboard keyboard opening up when unwanted and so I installed caribou 36 to ...
Hoffenstein's user avatar
1 vote
1 answer
3k views

Checking companion app returned: No such native application net.downloadhelper.coapp, that is a response and in sense companion app is installed

Checking companion app returned: No such native application net.downloadhelper.coapp, that is a response and in sense companion app is installed in my computer with Ubuntu LTS 22.04
Felician Kamala's user avatar
0 votes
2 answers
2k views

Using FireFox containers with multiple socks5 proxies with usernames and passwords

Using FireFox containers with multiple socks5 proxies with usernames and passwords I'm setting up Firefox containers which I want to use multiple different socks5 proxies for different web sites. How ...
Rick T's user avatar
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219 views

CPU usage spikes when browsers are open

My Dell Latitude E6540 has been lagging and hanging with high CPU usage spikes without any load. Firefox regularly spikes with only few tabs open. Also even when switching to other browsers and in ...
97f8sa797vhaa's user avatar
1 vote
0 answers
51 views

I can't get yahoo mail notifications

I use Ubuntu 18.04, Firefox browser and my email address is [email protected] I have enabled mail notifications both at Firefox settings and at yahoo mail page too, but with no avail. Nothing ...
Manolis's user avatar
  • 11
1 vote
0 answers
199 views

Opening .docx files in Google Docs when opening the files with Chromium or Firefox

When I had chrome installed, I would open a .docx file with chrome, and it would open the file and give me an option to open it in Google Docs as well. Now I moved to chromium, and want to do the same ...
Mohamed Wafy's user avatar
1 vote
0 answers
31 views

Firefox migration to snap breaks native messaging extensions [duplicate]

After the forced migration of Firefox from deb to snap after upgrading from 21.10 to 22.04 all my native messaging extensions stopped working. File this for me https://addons.mozilla.org/en-US/firefox/...
Janghou's user avatar
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Dark Reader extension in firefox does not 'darken' local HTML file

I have installed this extension called Dark Reader in firefox. It works flawlessly while browsing online. But, it does not darken the local html web pages which I have saved in my computer (which have ...
SuperNoob's user avatar
21 votes
6 answers
14k views

Ubuntu 22.04 Firefox Snap breaks KeePassXC integration and other NativeMessaging protocol 25 apps

How can I get this back to work ? My whole password manager integration is now broken thanks to snap. People with 1password will have the same problem. Regarding "duplicate for ppa install over ...
proc's user avatar
  • 332
1 vote
1 answer
816 views

Manually add "verimatrix view right" plugin in Mozilla Firefox on Ubuntu 20.04

Guys I hope someone kind over here can help me add a plugin called "Verimatrix ActiveX" or "verimatrix view right" to my Mozilla Firefox on my Ubuntu 20.04. The service provider ...
NaveedP's user avatar
  • 11
1 vote
0 answers
64 views

how to simply manipulate DOM from firefox?

There is a website, where I would like that in two specific select fields another option is SELECTED. I can change this very easily using the F12 Firefox Developer console, but how can I automatize ...
Jeno's user avatar
  • 305
1 vote
2 answers
1k views

Where is the SHARE button in Firefox 80 (2020?

There used to be a share button on the menu bar where you could share web pages directly with someone. It would ask you how you wanted to share and offer any app that was set up in Firefox (ie Gmail)....
alrausch's user avatar
1 vote
0 answers
162 views

How to install a java enabled browser in ubuntu 16+?

I want to run an Indian govt website and submit an application by attaching a digital signature using a USB crypto token I posses. The ideal requirement of the site is 32bit java 7 enabled browser. I ...
Puneeth Raj's user avatar
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0 answers
77 views

How to copy Firefox extensions in Ubuntu to a Container with Ubuntu?

Hi What I'm looking for is to be able to pass the extensions already installed, that is to say to pass the directory of extensions and the corresponding Firefox and overwrite in the Firefox ...
Abraham.P's user avatar
  • 143
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1 answer
291 views

Firefox laggy and getting me signed out from youtube everytime I restart it

I have a fresh install of Ubuntu 18.04 bionic. I have installed Firefox from synaptic, software centre and also from mozilla bundle. I have done about:config and whatever checks are given for ...
mrigendra's user avatar
  • 207
2 votes
0 answers
594 views

Deploy firefox including extensions to LiveCD

I'm working on a customized LiveCD and would like to provide Firefox including a few extensions pre-installed. The steps of LiveCD customization are done within a self-written .sh-script. I found ...
ExpressEdU's user avatar
2 votes
0 answers
67 views

Problems with installing extensions ubuntu 18.04.2 [duplicate]

That happens with every extension that i try to install. Any idea what is going wrong ?
Alex Kalaidjiev's user avatar
17 votes
2 answers
2k views

FireFox 66 Quantum disabled all my extensions at midnight! [closed]

This morning I woke up to: and the FireFox help page doesn't really help... Help! What should I do now??? I need NoScript and AdBlock Plus to improve my surfing speed!!! 0:-)
Fabby's user avatar
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-3 votes
1 answer
1k views

How to completely remove anything related to Firefox

My Ubuntu 18.04 device has been infected. there have been fraudulent bank transactions. I need to clean my Firefox completely. Please, help me with steps to completely remove any file related to ...
user9371654's user avatar
0 votes
1 answer
597 views

Mozilla Firefox Quantum 63.0: "Restore previous session" greyed out

Today, I read about some tricks to make my Firefox more secure here and here, and went on to implement some of them. After I was done doing this stuff, I got to see that "Restore previous session" is ...
Wings's user avatar
  • 117
1 vote
0 answers
63 views

Cant install Gnome Shell extension [duplicate]

I recently install ubuntu 18.4 and i tried to install Gnome Shell Extension in Firefox, the extension has been install, but show this 'Although GNOME Shell integration extension is running, native ...
Arcade Ghost's user avatar
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124 views

Firefox perhaps having trouble with stackexchange and possibly making too many requests

Does Firefox have trouble with Stackoverflow? It fixes itself pretty quickly. I have a slow connection. Went ahead and installed chromium-browser. Chrome seems a bit better, but not hugely. ...
Thufir's user avatar
  • 4,551
2 votes
1 answer
2k views

GNOME shell extension working with Firefox but not Chrome

Recently installed 18.04, and, as the title explains, I have managed to get GNOME Shell integration extension to work with Firefox (version 60.0.1) but not with Chromium (version 66.0.3359.139). I ...
Juan Antonio's user avatar
  • 1,572
3 votes
3 answers
12k views

Unable to connect with uget-integrator

$ firefox -v Mozilla Firefox 60.0.1 I add the firefox addon but can't connect with that.
alhelal's user avatar
  • 2,601
3 votes
2 answers
7k views

Amazon prime videos do not play in Ubuntu

does anybody know what needs to be installed to play videos from www.primevideo.com on chromium or firefox in Ubuntu ?
Pavan's user avatar
  • 31
0 votes
0 answers
60 views

n I try to install java, the terminal makes this comment: 'Installing Java on Ubuntu 16.04 LTS

I am a novice - and I tried to install java on my Ubuntu 16.04 32-bit LTS system, as I needed that for many things. I followed the instructions I got, very carefully, using a terminal without ...
Mogens Eliasen's user avatar
2 votes
0 answers
2k views

Ubuntu 16.04 Firefox can't play some video despite flash installed

I'm facing an issue with Firefox 59.0.2 in Ubuntu 16.04 (up to date): Some video simply won't play. All youtube videos work, but the following doesn't work (it loads forever): https://www.reddit.com/...
Eric's user avatar
  • 161
0 votes
1 answer
908 views

how to Send to Kindle for Mozilla Firefox?

Does the "send to Kindle" extension not work for Firefox from Ubuntu? thufir@dur:~$ thufir@dur:~$ firefox -version Mozilla Firefox 59.0.1 thufir@dur:~$ From the Firefox site it's not exactly clear ...
Thufir's user avatar
  • 4,551
6 votes
2 answers
19k views

Gnome Shell integration native host connector will not work with Firefox 58 [closed]

Ubuntu 17.10 (xorg), gnome 3.26.2, Firefox 58.0 (64 bit). I have installed gnome-shell-extensions, chrome-gnome-shell, and the browser add ons for both Google Chrome and for Firefox. In Firefox the ...
dln949's user avatar
  • 1,267
2 votes
2 answers
1k views

Flashgot problem [duplicate]

I got Firefox Quantum and also I have uGet but I can't download because I don't have flashGot(I can't add to Firefox because it says that is not compatible with Firefox Quantum). Please help me. ...
xAssasinSoulx's user avatar
0 votes
1 answer
2k views

Making Flash work on Firefox Quantum 57 (PPAPI, NPAPI, pepper), Ubuntu 16.04 [duplicate]

In this post I look rather for clarification than technical solution (the problem is already solved, see below). I just upgraded from 14.04 to 16.04 and installed a fresh Firefox, which happened to ...
Maciek's user avatar
  • 141
-1 votes
1 answer
1k views

Flash Plugin for Firefox Quantum in Ubuntu 14.04 [duplicate]

I have downloaded tar.gz file of the lastest firefox-quantum today. I don't wish the old firefox to be replaced. Like the old firefox, I didn't find any single plugin especially the flash-plugin ...
Vivek Panwar's user avatar
3 votes
3 answers
6k views

How to use IDM on Mozilla Firefox Quantum

I want to use Internet Download Manager for downloading on Firefox. According to this answer it can be done with the extension called Flashgot. But Flashgot does not work on new Firefox Quantum. ...
Steve's user avatar
  • 1,053
0 votes
1 answer
48 views

Automatically disable wifi (wireless) when 'x seconds' since last browser page change

Is it possible to create a script like this? I'm asking because i suspect that the wifi power manangent in my ancient hardware is really really bad. To the point that while i had no internet, my ...
i30817's user avatar
  • 130
1 vote
0 answers
403 views

How to setup Selenium testing environment in Ubuntu 16.04

I have just switched from Windows to Ubuntu. I want to set up a Selenium testing environment. I got the eclipse setup but not getting Selenium IDE for Firefox browser which is compatible with Ubuntu. ...
Navish Keshari's user avatar
74 votes
6 answers
43k views

How do I downgrade Firefox v. 57 to v. 56?

What is the most straight forward way to downgrade Firefox 57 to Firefox 56? This is to have more time to wait for working replacements for legacy extensions.
Jani Saarenpää's user avatar
0 votes
2 answers
1k views

Alt-Gr key not working properly with Firefox menus

When using Firefox I have troubles with the use of Alt-Gr inside an open menu window (address bar, search bar, addon popup). This is particularly annoying since, for instance, when using LastPass I ...
FedFranz's user avatar
  • 158
0 votes
1 answer
1k views

How to export Firefox plugins & Settings to other users?

How do I export Firefox Plugins, Settings & the changes that I have made to about:config in Admin Account to all the Standard User Accounts, right now I have to manually install all the plugins, ...
Alex's user avatar
  • 3
3 votes
0 answers
603 views

How to install djvu plugin for firefox in Ubuntu 16.04?

Tried installing these packages: djview djview-plugin djvulibre-plugin But the plugin is not working. In Firefox Whenever I click a djvu file, Firefox asks to download that file. How can I fix it?...
Devraj's user avatar
  • 31
0 votes
1 answer
729 views

Firefox + flash player + adblock plus on Youtube: video freezes

My OS: Ubuntu 16.04. Firefox + flash player + adblock plus on Youtube: why do videos freeze after about 1 minute? If I reload the page, the video suddenly runs fine. (I suspect Youtube's nasty ...
rapt's user avatar
  • 520
1 vote
2 answers
907 views

Silverlight not working in Firefox

I have followed the instructions for installation of Pipelight here, but to no avail: https://ubuntu-mate.community/t/enabling-silverlight-in-firefox/6908 It may be worth noting that the file ...
readyready15728's user avatar
0 votes
2 answers
2k views

Mozila Firefox 51.0.1 (New version) Firebug not Working?

I using firebug past one year in Forefox, 51th version console log for javascript not working Any body know about this solution give me the idea they told no longer Please help me.
Gowthaman D's user avatar
0 votes
1 answer
193 views

KeePass2 Portable authentication sent requests to Firefox/ Keefox after closing KeePass2 Portable

"Keefox was not allowed to connect probably because you entered a connection password incorrectly" error appears when KeePass2 Portable is left open for some time. The notification prevent me from ...
Jiawan 탁가만 Yovan's user avatar
1 vote
0 answers
1k views

enable pipelight-silverlight on Firefox 15/Ubuntu 16.04

I have installed pipelight and enabled silverlight and flash. I can get this: xxx@ooo:~$ pipelight-plugin --list-enabled silverlight5.1 flash And I also did: pipelight-plugin --create-mozilla-...
Yen-Yung Chang's user avatar
1 vote
0 answers
88 views

Firefox plugin doesn't work in Custom xsession

I am trying to create an Ubuntu Browser only session using this guide. Everything works fine with this setup. However, I also want to disable file downloads in this setup so I used firefox publicfox ...
Null pointer's user avatar
  • 2,547
4 votes
0 answers
1k views

Firefox multiprocess support disabled because of Ubuntu Modifications [closed]

Recent versions of Firefox introduced multiprocess support. The entry Multiprocess Windows in about:support indicates the state of multiprocess support. In my case, it appears as 0/1 (Disabled by add-...
Daniel's user avatar
  • 3,960
1 vote
2 answers
2k views

installation of Aspera connect fails

I have recently installed Aspera connect plugin in firefox for downloading large packages at faster rate, but since last few days, i am unable to download any package or file using Aspera connect ...
DevanDev's user avatar
  • 177