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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?

4563 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
  • 26,704
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
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
  • 1,444
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
  • 925
47
votes
6 answers

Where is Firefox's plugins directory?

I know that there are extensive, "proper" methods for installing Firefox plugins. However, I would like to know where the folder is for linking shared-object (.so) files, such as libnpjp2.so and libflashplayer.so so that I can install plugins the…
Richard
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38
votes
5 answers

Can I view Firefox history with the terminal?

Is there a command to show Firefox history from the Terminal ? without the need to Enter Firefox history graphically .
nux
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  • 118
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38
votes
1 answer

How to disable the "website is now full screen" warning in Firefox?

Whenever I switch a video in Firefox to full screen, a message appears at the top edge of the screen, that the website is full screen now. I find this quite annoying and unnecessary as I am the one switching to full screen. Is there a way to disable…
mook765
  • 15,925
36
votes
7 answers

How Do I Open Fixed Window In Firefox (like Chrome app mode)?

I'm essentially wanting to create a desktop shortcut to open a window of Firefox without tabs, locked address bar, no menu, etc. Similar to what some pop ups look like or what Chromium Desktop Apps look like. What options can I use to accomplish…
Sajan Parikh
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29
votes
6 answers

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 missing plug-in" it says none found, so when I click on…
Rob
  • 12,820
25
votes
3 answers

How to disable HTTP referrer in Firefox?

I feel that the HTTP referrer is a violation of my privacy (the HTTP header field that identifies the webpage you just came from which was linked to the webpage you are going to) and I understand that some browsers allow for one to then disable…
user364819
18
votes
1 answer

Pressing backspace doesn't open previous page in Firefox

In Firefox on Windows when I press the Backspace key it goes to the previous web page I surfed to. Why doesn't it work in Ubuntu and what can I change to make it work?
Templar
  • 981
18
votes
3 answers

How can I stop Firefox throwing a NS_ERROR_FILE_CORRUPTED error?

I had a powercut last night and ever since then when I try to access the Ask Ubuntu Chat, I see the following error in Firebug. Component returned failure code: 0x8052000b (NS_ERROR_FILE_CORRUPTED) [nsIDOMStorage.getItem] I assume I'm getting this…
Oli
  • 293,335
16
votes
7 answers

How do I delete cookies from a specific site?

This question asks how to delete all Firefox cookies and cache, but I need to delete cookies from a specific site. How do I do it?
mattiav27
  • 875
15
votes
0 answers

How to install several independent firefox instances on ubuntu?

My wife helps out a friend with managing the social media accounts of their small business. For that, she would like to have three independent Firefox instances installed on her Ubuntu laptop, because she frequently uses different logins for…
mischa.mole
  • 251
15
votes
1 answer

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 suppose I don't want to wait for a site to show…
Knowledge Cube
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