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Mozilla Firefox Review | Open-source online browsing
- March 25, 2022
- Updated: June 16, 2025 at 8:58 PM
Mozilla Firefox is a free open-source web browser developed and launched by Mozilla Corporation in 2003. It began with only a few features but has risen to match several of its rivals. One of the most prized abilities is its speed in loading website pages by using fewer system resources than some competitors.
Of course, it also comes with its downfalls. Still, there are plenty of new features that have appeared recently. Some of these include new security measures, VPN services, and a pocket version for saving pages to read later. Read more about what it has to offer in the Mozilla Firefox review below.
Getting started with Mozilla Firefox
When you begin your experience with Mozilla Firefox, the browser welcomes you by offering an initial setup. You can skip any of them and deal with them later, but I recommend establishing them from the start. Once done, you can enjoy all the features offered.
Setting your default browser
The first question Mozilla Firefox will ask you after installation is if you want to set it as your default browser. Donโt be intimidated into saying yes, as you can still enjoy all your surfing on any other browser you enjoy without limiting the features that Firefox has.
If you say yes, it simply tells your computer to always use it for opening web pages by default. Mozilla Firefox is quite persistent with this request, as youโll receive an email about switching after you create an account. Iโll deal with that a bit more later.
Importing bookmarks and settings into Mozilla Firefox
The next step is importing your bookmarks and settings. Iโm weary when performing this action, as I always fear how it will affect my original bookmarks and options on Avast Secure Browser. However, it worked quite smoothly when I did so from Microsoft Edge to Avast, and youโll only need to supply the email address you have linked on your previous browser.

Choosing your theme
Finally, youโll need to choose one of the themes that Mozilla Firefox lists. I usually like to work in normal or dark mode, depending on what Iโm working on. Thereโs a fourth option with stunning colors. As you click on a theme, youโll get a preview on the browser of what it will look like.

Default tab page
Now that you have Mozilla Firefox set up for use, youโll enter the default New Tab page. Youโll see icons under the search panel with links to social media platforms. While the section underneath is empty at the start, the browser will pay attention to the content you visit the most. Within a few days, youโll see recommendations for other sites.
Which Mozilla Firefox features stand out?
As you can see, Mozilla Firefox is easy to set up. In many ways, the platform looks and behaves like Google Chrome, but there are a few differences. Letโs take a look at some of the more outstanding features.
Central search and address bar
As it has become common practice with most browsers these days, the address bar also doubles as a search field. You can either place a URL or enter what youโre looking for. Either way, it will take you to the site or show you the top results for your search intent. If youโve entered something similar before, it will complete the field for you.
Bookmarking pages
Another feature youโll find in Google Chrome, Avast Secure Browser, and Mozilla Firefox is the small star that bookmarks pages for you. When you click on it, it will ask you to provide a name and folder location. It makes it easier to organize your bookmarks later when you have hundreds of them.

Saving and synchronizing your account
If you want to open your bookmarks and saved pages on a different device, youโll need to create a Mozilla Firefox account. It will send you a code to verify your email, and then it will synchronize your information. Now you can sign in on a different computer, tablet, or phone, and revisit all your data and sites. The process is painless and finished within a minute or two.
You can expect Firefox to bombard you with a few emails when youโre done. It will ask if you want to import your bookmarks or change the default browser. Itโs nothing if not persistent in making sure you only use that browser for searching the web.

Toolbar customizations
One of Mozilla Firefoxโs features that I found fascinating is the Overflow Menu. When you click on the Menu button, More Tools, and then Customize Toolbar, there are several shortcuts to add. For example, you can insert email links, your history, page saving, go to full screen, or enter developer mode. I donโt recall seeing options like this on other browsers.

Add-ons are like Extensions
You may recall a specific function called Extensions that Google Chrome introduced. Mozilla Firefox has add-ons, but it offers so much more. Even the location where you can browse the library looks more impressive.
Mozilla Firefox add-on four areas:
- Recommendations: These are themes and extensions that Mozilla Firefox recommends you try.
- Extensions: These add-ons add more functions and integrate with apps for a better experience. You can add a translator or YouTube audio player, as a few examples.
- Themes: Besides the basic browser themes, you can find additional colors and banners from other creators that Mozilla has approved.
- Plug-ins: This is different from the other add-ons by changing specific elements of how Firefox functions. For instance, you can install sound codecs for different formats.

Is Mozilla Firefox safe to use?
Iโve decided to devote an entire section of my Mozilla Firefox review to security aspects. With so much malware on the rise, itโs essential that browsers protect your information. Hereโs what Firefox has in place.
Search for account breaches on Mozilla Firefox
One of the free offerings that come with Mozilla Firefox is searching for any data breaches related to your email account, no matter who you signed up with. It will give you a report telling you if any passwords have leaked or of any other dangers you should know about. If you want to be a researcher for this program, Mozilla will reward you with a gift card.

Email monitoring
Part of the Mozilla Firefox Monitor deal that you can sign up for includes receiving alerts for any breaches. It can monitor several emails at the same time, even while youโre accessing them on the browser. You donโt necessarily need to be using the Firefox browser to access this feature.
Hide your email address with Mozilla Relay
Another security feature you can connect to the Mozilla Firefox browser is Mozilla Relay. It lets you create several aliases so that the recipients donโt see your real email address. In this way, you can prevent phishing and other nefarious activities linked to stealing account information. So when youโre on the browser and you want to enter an email address for a newsletter, you can use an alias instead.
Going undercover
Much like Incognito mode, Mozilla Firefox offers a private window that doesnโt store cookies or site information. Itโs good for when you want to do online banking or shopping without anyone spying on you. Of course, you wonโt have access to save passwords, which is also a good thing.

Mozilla VPN
If you want to hide your I.P. address completely or access content in other countries, youโll need to sign up for Mozilla VPN. You can use the VPN service on the Mozilla Firefox browser, and youโll receive complete anonymity from spying eyes. The only issue is that itโs not available in all countries at the moment.

Watching for trackers
In the top left corner of the search bar, thereโs a small shield icon. Itโs a notification panel for if Firefox spots any trackers on a site youโre visiting. When all is clear, it will remain blank and tell you thereโs no danger. Youโll get a warning if cookie tracking is used.
Does Mozilla Firefox share data?
While Mozilla Firefox goes out of its way to ensure your data remains secure, that doesnโt mean your information isnโt shared. Thereโs a clear policy on how it uses this data. For the most part, itโs for technical reasons, crash reports, and recommending new content. However, there are some marketing campaigns it participates in where the information is valuable to them.

Mozilla Firefox: delivering a fast browsing experience
Mozilla Firefox is an outstanding browser that delivers a fast experience thanks to using low system resources. It pays detailed attention to the security needs of the user, even if some of the features arenโt available worldwide. Some of the qualities are similar to other browsers, but the add-ons platform and customizable toolbar stand out among the rest.
Even though it offers so many security tools, you still stand the risk of someone hacking your information and passwords if you arenโt careful. Safety starts with you. Read our guide on how to stay safe online at all times.
Pros
- East to set up
- Synchronizes across devices
- Imports bookmarks and settings
- Several security features
- Stunning add-on platform
- Ability to customize the toolbar
- Recommended content
Cons
- Limited access to VPN
- Shares data for marketing and technical purposes
Developer: Mozilla Corporation
Publisher: Mozilla Corporation
Top features: Search bar, security services, synchronized account, bookmarks, add-ons
Platform reviewed: Windows 11
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