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Mozilla Firefox VS Vivaldi

Compare Mozilla Firefox VS Vivaldi and see what are their differences

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Mozilla Firefox logo Mozilla Firefox

Get the browsers that put your privacy first — and always have

Vivaldi logo Vivaldi

Vivaldi is a free, fast web browser designed for power-users. You decide how you browse. Download Vivaldi's fully customisable browser now and browse your way.
  • Mozilla Firefox Landing page
    Landing page //
    2023-09-01

Get the browser that protects what’s important. No shady privacy policies or back doors for advertisers. Just a lightning fast browser that doesn’t sell you out.

  • Vivaldi Landing page
    Landing page //
    2022-06-12

Mozilla Firefox features and specs

  • Privacy-Focused
    Firefox places a strong emphasis on user privacy by offering features such as Enhanced Tracking Protection, which blocks a wide range of online trackers.
  • Add-Ons and Extensions
    Firefox supports a wide array of add-ons and extensions, allowing users to customize their browsing experience to a great extent.
  • Open Source
    Being open-source, Firefox's code is transparent and reviewed by the community, helping find and fix vulnerabilities more efficiently.
  • Cross-Platform Syncing
    With a Firefox account, you can sync your bookmarks, history, and open tabs across multiple devices, making it convenient to transition between them.
  • Resource Management
    Firefox has made significant efforts in optimizing its resource management, which translates to better performance and reduced memory usage compared to some other browsers.

Possible disadvantages of Mozilla Firefox

  • Extension Compatibility Issues
    Though Firefox supports numerous extensions, sometimes they can have compatibility issues after updates, requiring developers to make adjustments.
  • Slower Performance on Some Sites
    In some cases, Firefox may perform slightly slower than competitors like Google Chrome, particularly with sites heavily optimized for Chrome.
  • Market Share
    Firefox holds a smaller market share compared to giants like Chrome, which can sometimes result in websites being less optimized for Firefox.
  • Limited Native Features
    Some features that are built-in with other browsers need to be added via extensions in Firefox, potentially making the setup process longer.
  • Frequent Updates
    Though generally positive, Firefox's frequent updates can sometimes introduce bugs or lead to unexpected behavior, needing rapid release fixes.

Vivaldi features and specs

  • Customization
    Vivaldi offers extensive customization options, allowing users to tweak the browser's appearance and functionality extensively. Users can adjust themes, modify the interface, and use custom shortcuts.
  • User Interface
    The user interface is highly flexible and can be tailored to individual preferences. For instance, users can reposition tabs, split screens, and even stack tabs for better organization.
  • Privacy and Security
    Vivaldi focuses on privacy, providing built-in features such as an ad blocker and tracker blocker. The browser does not track or profile its users.
  • Performance
    Vivaldi is generally snappy and capable of handling a large number of open tabs without significant slowdowns. It is built on Chromium, which provides a stable and quick browsing experience.
  • Built-in Tools
    Vivaldi includes a range of built-in tools like a notes manager, screen captures, and customizable web panels that improve productivity without needing extra extensions.

Possible disadvantages of Vivaldi

  • Complexity
    The plethora of customization options can be overwhelming for new users. The interface may appear cluttered compared to simpler browsers if not configured properly.
  • Resource Usage
    Vivaldi can be more resource-intensive compared to other browsers due to its additional features and customization capabilities. This may lead to higher memory usage.
  • Extension Compatibility
    While Vivaldi supports Chrome extensions, some may not perform as expected due to the browser's unique features and customizations.
  • Learning Curve
    Users coming from more straightforward browsers might need some time to adapt to Vivaldi's extensive features and customization options.
  • Frequent Updates
    While frequent updates can be seen as a positive, they could also be viewed as a nuisance to users who prefer a more stable and less frequently changing browser experience.

Mozilla Firefox videos

+ Add

Mozilla Firefox Review

More videos:

  • Review - Firefox Quantum: Chrome Killer? Should You Switch Browsers?
  • Review - Six Reasons I Love Firefox Quantum
  • Review - Firefox Quantum Review: Google Chrome killer?

Vivaldi videos

+ Add

Vivaldi Is Awesome: Ditch Chrome | Full Vivaldi Tutorial 2018

More videos:

  • Review - Brave vs Vivaldi - Which is Better?
  • Review - Opera vs Vivaldi vs Brave | The Web Browser Comparison

Category Popularity

0-100% (relative to Mozilla Firefox and Vivaldi)

Mozilla Firefox

Vivaldi

Web Browsers
47 47%
Web Browsers
53% 53
Security & Privacy
53 53%
Security & Privacy
47% 47
Customisable Web Browser
44 44%
Customisable Web Browser
56% 56
Web Development Tools
59 59%
Web Development Tools
41% 41

User comments

Share your experience with using Mozilla Firefox and Vivaldi. For example, how are they different and which one is better?
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Reviews

These are some of the external sources and on-site user reviews we've used to compare Mozilla Firefox and Vivaldi

Mozilla Firefox Reviews

  1. Sabu
    · Technical Support Engineer at Stan MM ·
    Best Online Experience

    I adore Firefox's functionality and the fact that it is open source software that might be created by tens of thousands of people worldwide. You can utilize features that aren't accessible on rival products like Chrome because it is open source.

    👍 Pros:    Open-source|Free|Fast
  2. BibGreen
The 7 best web browsers in 2025
Firefox is a lightweight browser and doesn't require much space or memory, meaning it can operate smoothly even on lean machines. But it doesn't compromise on utility. It's packed with supplementary tools, like a handy PDF editor, a tracker and cookie banner blocker, a read-it-later app, and more. I also like that you can isolate tabs on Firefox so they act in a new,...
Source: zapier.com
The 11 Best Web Browsers Not Based on Chromium
Mozilla Firefox stands out as an open-source browser that prioritizes privacy and customization. As a top choice among browsers not based on Chromium, it has gained a loyal following thanks to its strong focus on user control and security.
Source: stackdiary.com
Avoid The Hack: 6 Best Privacy Browser Picks for Windows
Many tweaks, both basic, and advanced, should be made before Firefox can be considered a private browser. While vanilla - or otherwise un-configured - Firefox is arguably better for privacy than Google Chrome or Microsoft Edge, Firefox doesn't come especially configured for optimal (or maximum) user privacy out-the-box. This isn't a difficult task and just takes a chunk of...
Source: avoidthehack.com
Top browsers: features, comparison and stats (2022)
Mozilla Firefox is the fourth most popular web browser; it currently holds 4.1% of the web browser market share. It was released in 2002 by the Mozilla Foundation and its contributors.
Source: www.stackscale.com
6 Best Browser Alternatives to Google Chrome
You can also expect good performance from Firefox, though you might run into a rare compatibility issue. In general, Firefox is speedy (though not as lean as Edge) and its customizable UI should suit most users. While not the most feature-filled, Firefox has some nice additions not available on Chrome, including containers that let you separate work, shopping, or personal...
Source: gizmodo.com

Vivaldi Reviews

The 7 best web browsers in 2025
And there's plenty more to like about Vivaldi. Its unique tab management tool allows you to stack multiple tab rows on top of each other, so you can group certain websites to clear clutter and make more room on your main tab row. On the sidebar, you can similarly pin panels for quick access to anything, like your notes, reading list, messaging websites, and browsing history.
Source: zapier.com
Brave Alternative - 8 Privacy-Focused and Reliable Options
Compared to Brave, Vivaldi lacks privacy features, but the huge extension support compensates for that. In my experience, both Brave and Vivaldi offer the same browsing speed, and the system impact was also equal.
Source: mspoweruser.com
The Best RSS Feed Readers for Streamlining the Internet
Vivaldi's RSS reader is new, and features are somewhat limited. For example, it doesn't handle some of the extras that other services do, like newsletters and Facebook pages. If you just want a simple reader to subscribe to a few feeds and you don't need a mobile client or all the bells and whistles, this is a great choice. Vivaldi's RSS reader is free and built-in to the...
Source: www.wired.com
Top browsers: features, comparison and stats (2022)
Vivaldi is a web browser, targeted to technical profiles, released in 2016 by Vivaldi Technologies. It is also based on Google’s free and open source software project, Chromium, but it includes proprietary modifications for further features. As of March 2022, the Vivaldi browser has more than 2.3 million active users.
Source: www.stackscale.com
6 Best Browser Alternatives to Google Chrome
Combine tab stacking with strong privacy measures, and it’s easy to see why Vivaldi is one of the most beloved alternative web browsers. On the subject of privacy, Vivaldi doesn’t profile, track, or sell your data as you browse the web. The browser can’t view the sites you visit, what you download, or what you are searching for. Moreover, there is a capable built-in ad...
Source: gizmodo.com

Social recommendations and mentions

Based on our record, Vivaldi seems to be more popular. It has been mentiond 159 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Mozilla Firefox mentions (0)

We have not tracked any mentions of Mozilla Firefox yet. Tracking of Mozilla Firefox recommendations started around Mar 2021.

Vivaldi mentions (159)

  • Wikipedia and Stack Overflow Search
    Hi, https://mach3db.com is now a frontend to search Wikipedia and Stack Overflow article titles. Right now I only have simple substring search to reduce load on my server. The results are clickable links that point to lightweight versions of Wikipedia and Stack Overflow articles. Please give it a try! It works best in the Vivaldi browser: https://vivaldi.com/ Stack Overflow results can also be filtered by minimum... - Source: Hacker News / 4 months ago
  • Why Vivaldi Might Be the Browser You've Been Waiting For
    Download Vivaldi today and start experiencing the web on your terms: https://vivaldi.com/. - Source: dev.to / 7 months ago
  • Is there is any browser which allows us to create shortcuts on the websites or is there is any add on which allow you to create shortcut for the website?
    Thank You for clarifying it, yes I am exactly looking for keyboard shortcut, I have heard about Vivaldi browser that it is specially designed for users which prefer keyboard shortcut keys and advanced users, but I failed to use as I intended. If you have any idea or suggestion of how to do this specific thing which I am looking for, then do let me know. Thank You. Source: over 1 year ago
  • Why Bother with uBlock Being Blocked in Chrome? Time to Switch to Firefox
    For those who can't switch away from Chrome extensions yet I recommend trying Vivaldi Made by Opera browser Founder https://vivaldi.com. - Source: Hacker News / over 1 year ago
  • Links unreachable with tab key despite having href made me learn about Spatial Navigation
    What's that? A browser bug? A browser misconfiguration? Should I stop using an alternative Chromium build like Vivaldi? - Source: dev.to / over 1 year ago
View more

What are some alternatives?

When comparing Mozilla Firefox and Vivaldi, you can also consider the following products

Brave - Fast and secure, ad and tracker blocking browser.

Google Chrome - Google Chrome is a fast, secure, and free web browser, built for the modern web. Give it a try on your desktop today.

Opera - Opera is a browser with innovative features, speed and security.

Tor Browser - Tor is free software for enabling anonymous communication.

Microsoft Edge - Microsoft's brand new web browser.

Pale Moon - Pale Moon is an Open Source, Mozilla-derived web browser available for Microsoft Windows and Linux, focusing on efficiency and ease of use.

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