Mozilla Firefox is, without a doubt, the most popular web browser on Linux systems. It’s even installed as the default web browser on the vast majority of Linux distributions, including Debian Linux.
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Testing HTTPS clients using openssl to simulate a server
This article describes how to test your HTTPS client or browser using openssl. To test your HTTPS client, you need an HTTPS server, or a web server, such as IIS, apache, nginx, or openssl. You also need some test cases. There are three common failure modes in SSL/TLS:
- The client makes the connection when it should not,
Protect Your Online Privacy With The Tor Browser Bundle
For anyone looking to protect their privacy online, Tor is an invaluable tool. It is both one of the most reliable ways to hide your identity and one of the easiest to use on Linux.
Tor works by routing your computer’s internet traffic through their own network. This way, you can still access online resources as usual, but your network traffic appears to originate from the Tor network, your IP address remains hidden, and your data is encrypted in the process. With Tor, you can also access .onion domain names, and access the infamous dark web.
In this guide, we’ll show you how to download, install, and configure Tor on a Linux system. This will get you up and running in a few steps so you can anonymize your traffic and access Tor-specific websites.
In this tutorial you will learn:
- How to download and install Tor on Linux
- How to configure Tor
- How to keep Tor up to date
- How to install new addons in Tor, and should I?
Save Your Passwords at the Command Line With gopass (With Browser Plugins!)
Having a solid password manager is an absolute must these days, especially if you work in IT or regularly login to various social media. There are various options available under Linux, some more elegant than others. Out of all the options available, one that looks well crafted is gopass.
In this tutorial you will learn:
- How to install gopass, the command line password manager
- How to setup GPG and Git to work in conjunction with gopass
- How to use gopass and what benefits and features it offers
- How to enable the gopass browser extensions available for Firefox, Chrome and Chromium
- How healthy the gopass and pass (on which it is based) communities and repositories are
How to install Chromium web browser on Linux
Chromium is an open source browser maintained by Google. Along with the Chromium browser itself, Google Chrome, Microsoft Edge, Opera, Vivaldi, and a slew of other notable web browsers are all based on the Chromium source code. It’s safe to say that Chromium plays a huge role in the way that many users view the web today.
Despite Chromium’s influence, it’s far more common to see Mozilla Firefox as the default web browser on Linux systems. Chromium is still the default browser on some systems and is almost always able to be installed directly from a distro’s package manager. Contrast this to a browser like Google Chrome, whose closed source precludes it from being as easily installed on Linux.
While Chromium is a fully functional browser on its own, it’s missing support for propriety codecs like H.264 and AAC. At the cost of minor inconveniences like this, you’ll be getting a open source, Chrome-like browser. We dive more into this topic in our Firefox vs. Chrome/Chromium guide.
In this guide, we’ll see how to install Chromium on all major Linux distributions.
In this tutorial you will learn:
- How to install Chromium on Debian, Red Hat, and Arch Linux based systems
Firefox vs Firefox ESR on Linux
Mozilla Firefox is a really popular browser to use on Linux systems, with many or most distros even including it as the default web browser. It even edges out Chrome and Chromium, at least in the Linux world.
Some Linux distributions, like Kali or Debian include a different version of Firefox, called Firefox ESR (Extended Support Release).
In this guide, we’ll be comparing Firefox to Firefox ESR. This will include a look into why some distros come with ESR instead of the normal version of the browser, and also what the pros and cons are of both browsers.
In this tutorial you will learn:
- What is Firefox ESR?
- Why do some distros use Firefox ESR?
- How to download Firefox ESR
How to install Opera web browser on Linux
Opera is a web browser based on the Chromium project. While not as popular as Mozilla Firefox or Google Chrome, it has been around a lot longer than both of them and offers a great web browsing experience with its sleek user interface.
Although it’s based on an open source project, Opera developers include their own closed source and proprietary additions in the final package. This is frowned upon in the Linux world, which means that Opera is almost never the default browser on a Linux distribution. Furthermore, it may not be included in official repositories, so it can’t even be installed (by default) with a distro’s package manager.
Despite this, it’s not hard to install Opera on a Linux system. You just need to follow a couple extra steps. In this guide, we’ll show you the step by step instructions for installing the Opera web browser an all popular Linux distributions.
In this tutorial you will learn:
- How to install Opera on Debian, Red Hat, and Arch Linux based systems
Firefox on Linux – Your connection is not secure
When browsing the web, your computer can communicate with websites through two different protocols: HTTP and HTTPS. HTTPS is the safer version of HTTP, with the “S” standing for “secure.” Whether a website is configured to communicate with its users securely or not is up to the site administrator.
On certain websites, you may notice Mozilla Firefox or another modern browser indicating that “your connection is not secure.” This basically means that the website is using HTTP instead of HTTPS. Whether a site is using HTTP or HTTPS will always be indicated by the padlock symbol next to the URL of a site.
In this guide, we’ll go over this security warning, talk about the seriousness of it, and give some tips for how you can protect yourself when browsing the web with Firefox on a Linux system.
In this tutorial you will learn:
- Why are some sites still using HTTP?
- Why is it important for sites to use HTTPS?
- What can I do to protect myself when browsing a site with HTTP?
How to improve Firefox font rendering on Linux
For one reason or another, Mozilla Firefox may not render fonts as intended on all Linux systems. Fortunately, Firefox gives us a lot of control over the font configuration, so we can fine tune these settings until it looks better.
In this guide, we’ll show you how to access Firefox’s font settings to improve rendering. We’ll also go over some more advanced options in case the usual ones don’t work for you.
In this tutorial you will learn:
- How to configure Firefox font settings
- Advanced font settings in about:config
- Operating system level font tweaks
Enable Firefox dark mode on Linux
Dark mode is all the rage these past few years, with nearly all operating systems and applications now offering the feature. Mozilla Firefox is no exception, and it’s pretty simple to enable dark mode inside the web browser. This can help reduce eye strain, especially when using your PC in a dimly lit room.
In this guide, we’ll take you through the step by step instructions to enable dark mode in Firefox on a Linux system. You’ll also see how to select from a variety of other themes or restore the classic brighter theme.
In this tutorial you will learn:
- How to enable or disable dark mode (and other themes) in Firefox
How to update Firefox on Kali Linux
Mozilla Firefox comes installed by default on Kali Linux and a ton of other Linux distributions. It’s a solid web browser but it’s the user’s responsibility to make sure Firefox stays up to date.
The process for updating Firefox is a little different on Kali. Kali is based on Debian’s testing branch, which uses Firefox ESR (Extended Support Release).
Firefox ESR is essentially a more stable version of Firefox which is geared mainly towards enterprise systems. It usually doesn’t have all the latest features that are available in other Firefox installs, but includes the most stable and thoroughly tested components.
In this guide, we’ll see how to update Firefox ESR from the command line on Kali Linux.
In this tutorial you will learn:
- How to update Firefox on Kali Linux
How to remove Firefox title bar on Linux
If you’re into a sleek and minimal aesthetic when it comes to Linux, removing the title bar in Mozilla Firefox can help you accomplish that feel. The title bar isn’t really necessary anyway, since it just contains information that’s already available in the title of the tabs.
In this guide, we’ll show you the step by step instructions to remove the title bar in Firefox. These same steps can also be used to toggle it back on.
In this tutorial you will learn:
- How to remove Firefox title bar on Linux