What is open source?

The term open source was introduced in the late 1990s by The Open Source Initiative (OSI). The software code in OSS is designed to be publicly accessible—anyone can see, modify, and distribute the code if anyone wants it. And today I share about open source software that popular in 2021.

Most popular open-source software

  1. Mozilla Firefox
  2. LibreOffice
  3. GIMP
  4. VLC Media Player
  5. Linux
  6. Blender
  7. GNU Compiler Collection
  8. Python
  9. PHP
  10. Shotcut

Mozilla Firefox

Simply use the term Firefox. What is Mozilla Firefox? Well, I think most of us know that! It’s a web browser! Simply it is application software that can access to World Wide Web.

“Internet for people, not profit” is the motto of the firefox.org.

Journey of Firefox

Mozilla Firefox web browser developed by Mozilla Foundation and its subsidiary.


In 1998 first Mozilla project created and release the Netscape browser suite source code. They intended to create a revolutionary change with the help of the creative power of thousands of programmers on the internet. And they succeed on the first try! The programmers engaged and contributed new functionality, enhanced existing features.

Because of the open community, Mozilla became a larger company. And with community members, they change the direction of the project to creating free software that would enable people to have a choice in how they experienced the internet.


After several years of development, Mozilla released the first major version Mozilla 1.0 in 2002. It is named Phoenix. This version had featured many improvements to the browser, email client, and other applications included in the suite. But unfortunately, still, most peoples were using internet explorer.


The Mozilla Foundation was established in 2003 by the Mozilla project, an independent non-profit organization funded by individual donors and a range of businesses. While managing daily operations they promote the product also.


In 2004 Firefox 1.0 had huge success with download over 100 million times

Fast forward a few years!


Launch Firefox OS for the new generation. And Mozilla celebrated its 15th anniversary in 2013. They are still successfully continuing with determinations of “Internet for people, not profit”

Popularity of Firefox

Source: StatCounter Global Stats - Browser Market Share

Comparing Firefox Browser with Google Chrome

The above chart shows that Google Chrome is the major market share. But it does not mean Chrome is the browser that you are looking for an internet experience. No web browser can claim as “The Best” all browser have own unique qualities.

Chrome was introduced in 2008 and its influence as a web browser was unbelievable. And they use high technology to develop chrome. Chrome had a fast loading speed, took up minimal screen space, and offered a simple user interface.

And today many people have an issue with chrome because of their online data such as browsing history, passwords, and other sensitive information. But surely the scheme made a revolutionary change in the browser landscape.

But in Firefox has special care for user privacy and sensitive data. And they are working on redesigning the user interface and performance enhancements that are automatic by default as well as plenty of handy browser tools.

  • Security and Privacy

In the latest version of Firefox they have a huge number of dedicated users who value their steadfast dedication to online privacy. For an instance, there is a new feature called Enhanced Tracking Protection (ETP) which is turned on by default for all users worldwide. It prevents trackers like Facebook, Twitter, and LinkedIn. There is another feature called Firefox Monitor that automatically notifies you if your, password has been breached or needs to be updated. And in private bowering mode automatically deletes your browsing information such as history and cookies, leaving no trace after you finish your session. And also updated the transparency regarding user data.

Compare to google chrome features to Firefox features they are pretty much the same about security, sandbox feature which separates the device from harmful infects.

Even if google chrome is a safe browser, their privacy record is questionable and they collect data from the users and they say that for improving the service.

It is your choice to make to decide what is good for you.

  • Utility

Both browsers have a large library of extensions and plug-ins and chrome has integrated with other Google services, like Gmail and Google Docs.

Firefox has open-source software with a huge number of active contributors. And also sync feature to see your open and recent tabs, browsing history, and bookmarks across all your devices

Firefox has a nicely curated set of built-in features, such handy screen capture tool, and reading mode feature. But I chrome these are added as an ad-ones.

  • Portability

Versions of Firefox and Chrome are available for the most common desktop and mobile operating systems, which goes without saying (Windows, macOS, Linux, Android, iOS). Passwords, bookmarks, and open tabs can all be synced through all of your devices with Chrome and Firefox.

Things you should know about Firefox Dev Tools!

Developer Firefox 

Firefox Developer Tools are a suite of web developer tools that come pre-installed with the browser. They let you inspect, edit, and debug HTML, CSS, and JavaScript.

  • CSS Grid Inspector

CSS grid has a revolutionary different tool that is an inspector for CSS Grid

Among other things, the grid inspector can:

  • Identify all grids on a page
  • Give you an overlay showing how a grid is laid out
  • Display gridlines and their numbers
  • The display named grid areas
  • Visualize the effects of transforms applied to the grid container

If you try to test your web design with Firefox you will see how smooth grid inspector tool is.

  • CSS Animation Inspector

CSS animation inspector It automatically detects animations on a selected element, as well as any animations on its child elements. And this tool helps you determine the makeup of each animation

  • Developer Toolbar

Hit SHIFT + F2 to open the toolbar, then enter the command help to learn about all the commands you have at your disposal

  • Responsive Design Mode

This helps designers and testers simulate different devices.

  • Rulers

To check the dimension of your design, Firefox dev tools present the ruler. This will do any graphic design application do to take dimensions. And all measurements gave by pixels

  • Eyedropper

To pick color easily, the eyedropper tool magnify on a page when you hour over your mouse pointer.

  • Screenshot Tool

Without needing a screen capture extension in Firefox has an inbuilt screenshot tool that makes capturing the screen made easy

  • Measure Tool

Grab a quick measurement on any part of the page by activating the measure tool and dragging out a rectangle. You’ll get the height, width, and diagonal distance between corners.

  • Dark, Light, or Firebug Theme

In Firefox dev tool has three themes: a Firebug theme, a light (white) theme, and a dark theme

You can find out more details about Firefox Dev tool from here:

And keep in touch with my articles to find out other popular open-source applications.