A couple of days ago I installed Firefox developer edition using the command line but it seems to have removed my 'standard' Firefox. No matter what I try I cannot get it back, I've followed guides online which say they completely remove Firefox but then when I reinstall it from the software center I'm using the developer edition again.  Is there a way to fix this?  I'd like to have both the standard &amp; developer edition installed ideally.
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Mozilla released the Firefox Developer Edition! How do I install it on Ubuntu?  Source:
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I'm having a problem with Chrome and one of its extensions, so I want to completely uninstall everything. I've uninstalled Chrome through the Software Center, but when I reinstall it, all of my extensions and preferences are still there.   If I want to start over from scratch, what do I need to do?
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I have just updated to 18.04, and cannot right-click and get the little menu to select &quot;Always on top&quot; for Firefox/Chrome, but I can do so for the terminal, pdfs, etc. (along with other things like Minimize, Maximize, Move, etc.)  It appears to be a known issue (), but does not, as far as I can see, have a known fix... Thoughts appreciated. Thanks.
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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.
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I usually have different instances of my web browsers to attend to various types of usages, on Windows that means using portable versions of Chrome and Firefox. The  for Linux are outdated and lack immediate support, compared with the portable apps for Windows. I am wondering if there is any way to make the current versions of Firefox and Chromium provided by Ubuntu work as "portable", which by that I mean running as the equivalent of a Windows portable app, detached from the default browsers.
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I just want to try kde. How do I install it through the command line? If I don't like it, how do I uninstall it through the command line?
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I am using Ubuntu 12.04 LTS 64-bit on my system. I am using Mozilla Firefox 37.0 and Google Chrome 41.0 browsers.  I went to  in both browsers. In Chrome I could see the content on the webpage perfectly. In Firefox it asked me to install Microsoft Silverlight. I'm surprised that on Chrome it didn't ask me to install Silverlight.  Please explain me what is Silverlight, why it is needed, and how to install this on my system in an easy, efficient and reliable way?  P.S. Please don't suggest to do anything using WINE as I know it's not a reliable approach.  Thanks in advance.
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This  asks how to install FF32 bit while keeping the 64 bit.  I want the much more simple thing: is there a canonical way to install firefox 52 ESR as "default" firefox in my 16.04?  I found this  ... but there are no packages; probably no wonder given the fact that the linked blog article dates back to 2012.  So, 2017, Ubuntu 16.04; how to install FF 52 ESR (as I simply need the java plugin to work for me).  ( my current solution: I downloaded the TAR file from mozilla, extracted that to /opt; and then changed /usr/bin/firefox to be a link to that ESR version of firefox. works, but ugly )
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Hello,    This question is about the Command Line Developer Tools that are usually installed with xcode-select --install and updated via a software update from the Mac App Store (at least until macOS 10.13). I use the developer toolchain on a daily basis and it has always worked and updated without issues.    Today I've updated my mac from High Sierra 10.13.6 to Mojave 10.14.1, and I've lost the ability to update the Developer Tools.    After the update I've executed a terminal command that relies on the developer tools being installed. It was a command to update , although I don't think that the specifics matter, as I believe that any task that tried to access the developer tools would have triggered the same error message.    The error was:   xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun       The phrasing was new (maybe), but I thought that it was caused by the usual need to re-install the Developer Tools after some macOS updates.    Later I tried to dig a bit deeper into the failure, and found out that:  $ ls -l /Library/Developer/CommandLineTools/usr/total 0drwxr-xr-x  3 root  admin  96  4 Nov 19:32 share$ which xcrun/usr/bin/xcrun$ xcode-select -p/Library/Developer/CommandLineTools    Still, as I normally do, I entered the command to install and update the Developer Tools in the terminal:  xcode-select --install    This started the usual procedure: modal window to confirm, then request to accept the license agreement, followed by a progress bar. Except that it failed very quickly with an unexpected error:     Can&rsquo;t install the software because it is not currently available from the Software Update server.     I've tried several times, to no avail. It gets always stuck.    Sometimes, however, the failure causes the System Preferences to report a pending update:      If I open that preference panel it starts searching for updates, and it always finds nothing except the first time that it happened. The first time, it found this:          It literally suggested me to install the updates for macOS 10.11 and 10.13. I have no idea why.  I closed the preference without installing, and as I said it hasn't shown them again. There is also no update available in new Mac App Store.   Is this a known issue? Is there any way to resolve the problem?     Update  Of course I can download the Dev Tools for macOS 10.14 installer from .  Before installing them manually, though, I'm wondering if there is anything that's broken with the system.
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I have run sudo apt purge firefox, and I have gone through all of the /.config files, etc., and Software Updater is still asking me daily if I want to install the &quot;English Language Pack for Firefox&quot;. I don't have Firefox installed. How can I stop the updater from asking to update something on a program that doesn't exist? Output of dpkg -l | grep firefox: ii  firefox-locale-en                          88.0+build2-0ubuntu0.18.04.2        amd64        English language pack for Firefox
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I recently discovered that my computer is 64-bit. I have backed up my Home folder, and reinstalled Ubuntu. The reinstall wasn't nearly as painful as I thought. There is one thing that I can't quite seem to figure out: how do I get the 64-bit Firefox Beta build? I always get the Beta builds, but I want to take advantage of the 64-bit architecture of my computer.  says that Mozilla has come out with a 64-bit version of Firefox, but I can't seem to find it.  I do understand  of using a 64-bit browser, but I've decided to jump right in and do it anyway. (Flash and Java are already 64-bit, and who cares about Silverlight, since it's not for Linux anyway?)  There's only one issue, and it's a big one: I can't find the 64-bit Beta PPA!!! (I really hate using .tar.gz files, but I'd be willing to do that as long as I could still access Firefox via the Launcher. Oh, speaking of which, I don't understand .tar.gz files. Once, I managed to run one (the Dropbox Beta build,) but I have no idea whatsoever on how to install them: as in, click on the icon and go.)
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I use Ubuntu 12.04 (I have not upgraded to 14.04 for performance reasons) but I don't like Unity. How can I install XFCE as my default graphic system, and completely remove Unity?
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Since when going after the road-map, firefox 57 will be released on 14.11.207.   Now my problem is that I use a whole lot of legacy add-ons I want to keep working with.   So how can I prevent firefox from updating via the repositories?
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This  forced removal of unity and ubuntu-desktop on my 16.04 Ubuntu system.   The offending package that is missing, but unity needs, seems to be compiz-core-abiversion-20151010. It seems to be a , and I can't find it to download.    As it happens, I mostly use LXDE on this system, but I'd be very unhappy if I used Unity...  Since I do occasionally use the Unity desktop, is there a fix for this?  Edit: related questions are rolling in. Looks like a major quality escape          Edit 2:
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Hi I'm new to ubuntu world. I have few questions about the software installation in ubuntu:   What's the difference between installing a software in ubuntu software center and command line? Why some software I installed with command line can't be searched in software center (press the window key)? What are the correct commands to install a software from command line so that I can search them? I backed and restored up my system once but some commands worked before (like "subl") don't work after restoring the system.   I think these questions are about $PATH somehow but I can't find some material about this. Any extra material would be appreciated. :)
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I'm wondering if you folks could steer me toward some Window's Dev IDE tools for ASP.Net and or C Sharp?  Is there a good site for finding IDE's for Ubuntu? I've not totally installed yet, just looked at it and have been impressed running of DVD in my DVD Drive.
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I have the message:   Error Broken count &gt;0 Check if you are using third party repositories. If so disable them, since they are a common source of problems. Furthermore run the following command in a Terminal: apt-get install -f Details: The following packages have unmet dependencies: firefox-globalmenu: Depends: firefox (= 19.0+build1-0ubuntu0.12.04.2) but 19.0+build1-0ubuntu0.12.04.1 is installed   Any suggestions?