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Questions tagged [firefox]

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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Firefox

"The Firefox browser is created by Mozilla, a non-profit organization whose mission is to promote openness, innovation and opportunity on the Web" (http://www.mozilla.org/en-US/firefox/about). Used by about 33% of the global browser market (W3C statistics), it is available for Windows, Mac OS X, and Linux, and is the default web browser on Ubuntu.

Release cycle

New versions of Firefox are currently developed and released on six weeks schedule, which Mozilla calls rapid release cycle. Mozilla also maintains Extended Support Releases (ESR).

Notable questions

How do I install the latest stable version of Firefox?

4687 questions
234
votes
12 answers

How do I install the Firefox Developer Edition?

Mozilla released the Firefox Developer Edition! How do I install it on Ubuntu? Source: Mozilla Releases 'Firefox Developer Edition' for Windows, Mac and Linux - OMG! Ubuntu!
blade19899
  • 26,994
185
votes
10 answers

How to solve "Pending update of "firefox" snap. Close the app to avoid disruptions" error?

Recently, this warning appears when open Firefox: Pending update of "firefox" snap Close the app to avoid disruptions What does it mean? And what do I have to do? Is this a bug?
Emilio
  • 2,111
185
votes
13 answers

How to install Firefox as a traditional deb package (without snap) in Ubuntu 22.04 or later versions?

As far as I see in the ongoing development for 22.04 Jammy, Firefox is a Snap package. The related Deb package in apt is just a shortcut/link to the that snap version. I prefer my installation not to be from snap packages, since I find them too much…
igi
  • 3,197
158
votes
11 answers

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 directory should I put the files? In my home…
danimajo
  • 1,683
101
votes
2 answers

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 3.6.8 Mouse: Microsoft Intellimouse Explorer 3.0
The Pixel Developer
  • 1,235
92
votes
9 answers

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 Firefox also, but re-installing it will somehow recover the same Firefox…
Hossein
  • 1,777
84
votes
8 answers

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?
Jorge Castro
  • 73,717
79
votes
2 answers

what is the file: C:\nppdf32Log\debuglog.txt

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 called NPP_SetWindow : called for instance 920c0e28 Window from browser…
Jesse
  • 907
74
votes
6 answers

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
  • 859
74
votes
6 answers

How to install the Java plugin for Firefox?

I am trying to install Java and plugins for Firefox. I installed both the JDK and JRE. When I try with the sudo update-alternatives --config java command it shows only one choice available. Plugins are not usable in Firefox.
user199273
  • 741
73
votes
4 answers

How to revert Firefox 89 to the old design

How can I restore the Firefox 89 design to the old one? Specifically the tab design. I can't tell (easily) what tab is open. I can't find anything in the menus. I'm running Firefox 89 on Ubuntu 21.04 (Hirsute Hippo).
Wonko the Sane
  • 1,543
73
votes
11 answers

How to tell Chrome what to do with a magnet link?

Right now Chrome throws its apron over its head and calls Firefox, which opens the link with rtorrent. What do I need to do to eliminate the Firefox step?
BevA
  • 847
70
votes
2 answers

Why can't Firefox run local .swf files?

My goal is trying to run .swf files through Firefox and NOT a standalone player. When trying to run local .swf files on Firefox 29.0 (currently on 14.04), the browser opens the Open With/Save File prompt window even if the browser has the Flash…
maki57
  • 1,827
69
votes
1 answer

Notification saying "A new Virus is Stealing Data!" on Ubuntu 18

Recently whenever I open Firefox I get a message in notification center. It's not always the same and it keeps changing. here is an example: It's not always this. It gives other messages too and when I click it it sends me to phishing sites. I…
Anne Webster
  • 273
68
votes
7 answers

How to hide title bar in Firefox 57 Quantum?

I used to use an extension to hide/show the title bar in Firefox, but since Firefox 57 was released most of the extensions were disabled. In Chrome I just uncheck the option "Use system title bar and borders" and it's done. Are there any ways to do…
Jamo
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