Questions tagged [firefox-extensions]

Firefox add-ons that provide additional functionality

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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
30 votes
4 answers
157k views

How to install previous Firefox version?

I'm using Ubuntu 14.04 and I use the Perapera Chinese add-on for Firefox. It worked up to version 39, but now in version 40 it just stopped working. So I tried to downgrade to version 39 following ...
Rodrigo's user avatar
  • 566
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
18 votes
6 answers
38k views

How to integrate KeePass2 and Firefox using Kee in Ubuntu 18.04 - 22.04?

I have already Installed KeePass2 and also installed both Add-ons Kee. But I don't know how to integrate it. How can I accomplish this?
Abu Abdallah's user avatar
  • 2,204
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
  • 34.2k
16 votes
2 answers
18k views

how to resume download in wget which is integrated with firefox via flashgot

I use wget as a downloader. It is an excellent, outstanding application. I integrated it with Firefox using Flashgot. How can I resume a download which was stopped by a CTRL+C key press or a shutdown ...
001neeraj's user avatar
  • 831
14 votes
4 answers
36k 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 ...
igi's user avatar
  • 2,575
12 votes
3 answers
8k views

Pencil export page as PNG does not work

I was trying to use the latest Pencil (version 2.0.3) in Ubuntu 12.04, but the PNG exporting does not work, with Pencil working both inside and outside Firefox (which is 19.0.2). The export page as ...
elias's user avatar
  • 1,159
11 votes
2 answers
2k views

What's the purpose of the Ubuntu Online Accounts extension in Firefox?

On my Ubuntu 14.04, there is a Firefox extension "Ubuntu Online Accounts 0.5", installed by the package xul-ext-webaccounts (which is in the default install). What is the purpose of this extension? ...
Philipp Wendler's user avatar
7 votes
3 answers
12k views

Firefox consumes too much memory

I have firefox version 11.0 and am running ubuntu 11.10. Firefox takes upto 850MB RAM with only six or seven tabs opened and all the tabs loaded with light weight websites only. I wonder why would a ...
Vivek's user avatar
  • 3,749
6 votes
2 answers
18k views

Cannot get Java to work in Firefox

In Firefox 17 on Ubuntu 12.04 (Precise Pangolin), I cannot get the Java verification applet to work (needless to say, I cannot get any Java applications on the browser working). I already tried ...
Gaia's user avatar
  • 853
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
6 votes
1 answer
2k views

How can one enable double-tapping to zoom in Firefox?

I want to have a double-tap zoom functionality (like on Android or iOS devices) in my Firefox web browser using the left mouse button. Is it possible to change some browser settings in order to get it ...
psihodelia's user avatar
5 votes
2 answers
19k views

Youtube only show videos in 360p quality in Firefox Developer Edition

I've been having this issue with Firefox Developer Edition (FDE) on Youtube, where it show videos only in 360p quality, there's also an "Auto" option, which is also, the 360p quality. I'm in Ubuntu 14....
favourites's user avatar
5 votes
2 answers
6k views

Installing a firefox extension via terminal?

Is this possible? Ideally, I'm trying to make script which will take files (my extension backup files) and replace or install them into other user's computer, with all settings saved. Is this possible....
Dusan Milosevic's user avatar
5 votes
2 answers
8k views

How to change key-bindings in firefox?

Firefox constantly keep moving platformHTMLBindings.xml when it upgrade. I want to replace it to support vi key-bindings. But I cannot find it any more. sudo find / -name platformHTMLBindings.xml -o -...
kev's user avatar
  • 843
5 votes
3 answers
9k views

How to install gnome extensions through firefox using Ubuntu-Gnome 14.04.1

After fresh install of Ubuntu-Gnome 14.04.1, I was unable to install gnome extensions through the https://extensions.gnome.org/ website. The website would given an error that it could not detect that ...
txducker's user avatar
  • 101
4 votes
1 answer
22k views

libnpjp2.so - java plugin missing in openjdk-8-jdk:i386

I am using ubuntu 14.10 and i installed jdk8 via apt-get install openjdk-8-jdk:i386. Using update-alternatives, I have made java 8 as the default one. Now, when i checked java on firefox using this ...
Saravana's user avatar
  • 151
4 votes
1 answer
14k views

Installing adobe acrobat reader firefox plugin ubuntu 12.10

I want to install adobe acrobat reader plugin in ubuntu 12.10. I tried enabling medibuntu and searched for mozilla-acroread and acroread-plugins, but the search yielded no results. I have adobe ...
psteelk's user avatar
  • 153
4 votes
1 answer
4k views

What does the Unity Desktop Integration extension do in Firefox?

I am using firefox 28.0 on Ubuntu 13.10. Want to know what does the Unity Desktop Integration extension do in firefox. Then I can enable or disable it according to the use of it.
Layan's user avatar
  • 45
4 votes
1 answer
8k views

Where is the main Firefox binary?

I want to optimize my graphical experience with multiple plug-ins on Firefox (Specifically CFX) but for that to work, I need to specify the binary of Firefox so that the driver could force the ...
Nick Bailuc's user avatar
  • 3,315
4 votes
1 answer
3k views

How to run - from Firefox context menu - terminal commands selected in web pages?

Instead of copying it from the web and pasting it in the terminal, I want to be able to select a command displayed in a web page and with right click context menu to add it and run it in terminal. ...
user avatar
4 votes
1 answer
5k views

Firefox Save to PDF?

On my Nexus 7 running Android, I've installed Firefox. One thing I really love about it, is that it enables me to save websites as PDF right out of the box. Now I'd like to do the same thing in ...
Jo-Erlend Schinstad's user avatar
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
3 votes
2 answers
7k views

Show Downthemall addon download manager for firefox

I was quite long searching for a good GUI download manager for ubuntu. I used Flareget, uget etc. but then I came upon an add-on for firefox named as Downthemall. You can find it here. It is best but ...
Rehan Ullah's user avatar
3 votes
2 answers
4k views

How can I open pdfs in firefox using evince (not acrobat)?

I already installed mozplugger sudo apt-get install mozplugger Then I changed the pdf part of /etc/mozpluggerrc into the following: application/pdf:pdf:PDF file application/x-pdf:pdf:PDF file text/...
kikeriki's user avatar
  • 249
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
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
3 votes
2 answers
4k views

PDFs don't render correctly with Firefox and pdf.js

While using Firefox on Windows, pdf.js worked beautifully. It was honestly amazing. But on (K)ubuntu, it fails to render the files - not just some, but any (which is why I'm posting here). For example,...
notablytipsy's user avatar
  • 2,927
3 votes
1 answer
1k views

How do I get Firefox to open attachments without downloading them?

I have Windows XP and Kubuntu 12.04 on my desktop. I use Gmail and Yahoo mail through Firefox. If I get an attachment using XP, I know how to navigate to C:/Program Files/XYZ/xyz.exe to open the ...
WGCman's user avatar
  • 337
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
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
3 votes
1 answer
2k views

Why do I have trouble downloading add-ons for Firefox?

I get the error message: There was an error downloading . I am using Lucid Lynx and Firefox 11. Two of the add-ons in question are Easy Youtube dowloader and Flas Video downloader.
Geoffrey's user avatar
  • 578
2 votes
3 answers
1k views

How to make /bin/ps, called with aux as its argument, write to a file?

Is there a command line argument I can pass to /bin/ps -aux to make it write its output to a file? edit: To resimulate my issue: Open firefox Enable developer preferences (or as shortcut install ...
Noitidart's user avatar
  • 417
2 votes
2 answers
70 views

Can Firefox add-on damage to the system?

Can Firefox add-on damage to the system? why no need root access to install them?
Srinesh's user avatar
  • 327
2 votes
1 answer
760 views

Firefox Developer Edition: where is dark theme?

I download Firefox Developer Edition, unpack, run and see "white" GUI. Can I make look stable Firefox like Developer Edition - with dark GUI? I am at Xubuntu 14.10.
Vitaly Zdanevich's user avatar
2 votes
1 answer
985 views

How do I run Firefox OS as a standalone application?

I got the add-on for the Firefox OS simulator, and it works great! It even keeps functioning after Firefox is closed, so I can save processing power for other things. I'd like to run it as a ...
JamesTheAwesomeDude's user avatar
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
2 votes
2 answers
3k views

Are there any good text-to-speech plugins for firefox?

Know any good TTS software for linux, preferrebly well integrated into firefox? Ideally it would work offline and don't require payment, but I'm willing to look at alternatives.
Peret Finctor's user avatar
2 votes
4 answers
12k views

Facebook videos don't work

Hello everybody I have ubuntu 11.10 since updated my firefox to version 10 i can't play videos through facebook but the videos work fine on youtube Also the videos work fine on chrome ( facebook and ...
osos's user avatar
  • 121
2 votes
2 answers
3k views

How to install SVG-edit on Firefox?

I download the master and run make. https://github.com/SVG-Edit/svgedit Now how do I use this with Firefox?
BAMF4bacon's user avatar
2 votes
1 answer
2k views

node.js + jpm not working after installing: JPM [error] Error: spawn EACCES

I am moving from cfx to jpm After installing node.js by sudo apt-get install nodejs I installed jpm: npm install jpm -g. Now I am trying to run my addon: jpm run -v: JPM [info] verbose set JPM [info] ...
Vitaly Zdanevich's user avatar
2 votes
1 answer
190 views

Is there a tool for benchmarking scrolling speed of browser?

As the title asks, is there a tool for browser scrolling speed? I'm working on graphics and need a numbered performance of scrolling. I saw some mail threads regarding firefox-scrolling benchmark, ...
jaeyong's user avatar
  • 261
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
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
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
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
2 votes
0 answers
811 views

Cannot full screen video in firefox while using Pipelight on hbonow

I recently subscribed to hbonow, which is unfortunately loaded with DRM that is very problematic to watch on linux. Fortunately I was able to get it working on Firefox using Pipelight by following ...
cxrodgers's user avatar
  • 722
2 votes
1 answer
245 views

Firefox add-ons incompatible with the current version

I loaded Firefox in the beginning, used it for a bit then had issues so I removed the program. I tried to load Firefox again, getting a newer version, and now in “Add-ons” I get an error message that ...
doug Bourne's user avatar