Mozilla is one of the first browsers that advocates privacy. They believe that internet should be in the user's control and not those who run the websites, and so they give tools inside the browser to make the user be more in control.

It is really independent browser, unlike many other that are based on Chromium.

With new integrations focused on security and performance, Firefox is faster and less likely to have problems during use than ever before.

Master about:config and uBlock Origin, and all Firefox-based browsers will be yours.

Firefox is available as a free download. All Mozilla software is licensed under the Mozilla Public License. Instructions on how to obtain the source code can be found here.

Firefox 57 (Quantum) and newer uses less resources than ever. It is proven with benchmark done by AppleInsider.

The Firefox Quantum update (FF57) greatly increases the render speed and general performance of the browser, by taking better advantage of the user's hardware.

Very minimalistic design.

Open Source means that you can see the source code. So everybody even if they don't work for Mozilla is able to look what the browser does in the background. So you can be 100% sure that Firefox doesn't have hidden "spy features" unlike Google Chrome.

The Mozilla Manifesto outlines the company's mission and principles. Paraphrasing, they want the Internet to be a free and open resource, and to enable individuals to get the best use of that resource. They do this by creating open source software to which anyone may contribute, so long as such contributions fit with their principles (both ethical and technical).

Great library of add-ons.

Font rasterizing on Windows is much better than in competitors. Even smaller text is clear and contrast.

Firefox Sync is an optional feature in Firefox that allows syncing bookmarks, passwords, and add-ons between devices.

Powerful screenshot tool built right into the browser.

Mozilla developers fight against Google's big tech and privacy issues by doing its own independent browser.

Since i moved on from Brave due to bad RAM management my phone battery lasts longer than I expected. Excelent RAM management, doesn't drain battery, is not developed by GGoogle and the new UI looks beautiful.

Since Google is now considered a monopoly, a way to act against it is to install this browser, and using another default search engine thats not google instead.

The built-in developer tools have been merged with the popular FireBug extension since FF57.

Unlike other browsers, Mozilla uses almost the same codebase as with the desktop version so extensions work as-is without code modifications - something other browsers cannot do due to their breaking and sometimes unrelated code branches to the mainline desktop branch.

Beyond the toolbar and tabs, it darkens UI elements such as the URL-bar, pop-downs, new-tab page and more.

Firefox used to be a trailer in memory usage, but as of 2017 it's less hungry for memory than competitors like Edge, Chrome, Safari and Opera.

In order to add an open page to the bookmark bar, the tab can be dragged down and is added immediately.

Within the browser itself, you can easily take screenshots and save them to your computer.

Blocks tracking cookies, finger print scanners and Cryptominers by default. Can be changed to the user's individual needs.

Firefox scores strongly on HTML5 feature support
Though not as strongly as Chromium/Chrome browsers do.

Helps store your usernames and passwords. Lockwise also lets you know if any of the sites you have login details for have had their (and potentially your) data leaked!

Firefox comes with built-in Pocket integration that can allow users to quickly save the article for a read it later function to easily find any articles saved in Pocket from various sources and devices.

The newer versions of it will soon use WebRender to render webpages, which'll make it much more efficient by utilizing GPU to paint webpages.

The only web browser that only preloads entire HTML5 video which is useful for slow internet.

Blocks tracking cookies, finger print scanners and Cryptominers by default. Can be changed to the user's individual needs.

Firefox uses its own rendering engine (called Gecko), instead of Google-controlled Blink like the vast majority of other browsers.

FF Experiments are Mozilla projects available from FF Test Pilot, such as Firefox Colour, witch lets you customise your browser theme to your liking!

An enormous number of add-ons.