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Mozilla Firefox VS BLOCK THIS!

Compare Mozilla Firefox VS BLOCK THIS! and see what are their differences

Mozilla Firefox logo Mozilla Firefox

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

BLOCK THIS! logo BLOCK THIS!

Block This 3.0 is a FREE and Open Source ad blocker for Android that works in all apps and browsers!
  • 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.

  • BLOCK THIS! Landing page
    Landing page //
    2023-08-26

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.

BLOCK THIS! features and specs

  • Ad Blocking
    BLOCK THIS! effectively blocks ads, providing a smoother and less cluttered browsing experience.
  • Privacy Protection
    The app helps protect user privacy by blocking trackers and other intrusive scripts, which can help keep your personal information secure.
  • Bandwidth Saving
    By blocking ads and trackers, BLOCK THIS! reduces the amount of data loaded on webpages, saving bandwidth and potentially speeding up browsing.
  • Battery Efficiency
    Blocking ads can lead to less resource consumption, potentially extending the battery life of mobile devices.
  • Free to Use
    The app is available for free, making it accessible to a wide range of users without the need for a subscription or purchase.

Possible disadvantages of BLOCK THIS!

  • Compatibility Issues
    BLOCK THIS! may not work smoothly on all devices or with all browsers, which might limit its usability for some users.
  • Potential Content Blocking
    Occasionally, the app may block legitimate content along with ads and trackers, which can disrupt the user experience on some websites.
  • Updates and Support
    The frequency and reliability of updates and ongoing support can be variable, potentially leading to performance issues or lack of new features over time.
  • Root Requirement for Android
    On some Android devices, full functionality may require root access, which is not recommended for all users due to security and warranty concerns.
  • Potential Ethical Concerns
    Blocking ads raises ethical questions regarding the support of content creators who rely on advertising revenue to provide free content.

Analysis of Mozilla Firefox

Overall verdict

  • Yes, Mozilla Firefox is considered a good browser. It balances performance, security, and user-centric features well, which makes it a solid choice for many users.

Why this product is good

  • Mozilla Firefox is widely regarded as a robust web browser due to its strong commitment to user privacy, open-source development, and a high degree of customizability. It offers a variety of features like Enhanced Tracking Protection, customizable UI, and support for numerous add-ons and extensions. Its performance in speed and security updates is consistently appreciated by users who prioritize these aspects.

Recommended for

  • Users who prioritize privacy and data protection
  • Individuals who prefer open-source software
  • Those who like to customize their browsers with add-ons and extensions
  • People seeking a lightweight and efficient browsing experience
  • Users wanting regular updates and community-driven development

Analysis of BLOCK THIS!

Overall verdict

  • BLOCK THIS! is considered a good option for users seeking a lightweight and effective method to block ads and enhance privacy protection. Its DNS-based blocking can be less intrusive compared to other ad-blockers.

Why this product is good

  • BLOCK THIS! is a tool designed to block unwanted ads and protect user privacy while browsing the internet. It uses DNS blocking to stop ads before they even reach the browser, which can improve page load times and reduce data usage. Additionally, it may provide some protection against malicious sites.

Recommended for

  • Users looking to speed up web browsing by reducing ads and other unwanted content.
  • Privacy-conscious users who want to avoid tracking by advertisers.
  • Individuals seeking a DNS-based ad blocking solution that works on multiple devices.

Mozilla Firefox videos

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?

BLOCK THIS! videos

No BLOCK THIS! videos yet. You could help us improve this page by suggesting one.

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Category Popularity

0-100% (relative to Mozilla Firefox and BLOCK THIS!)
Web Browsers
100 100%
0% 0
Security & Privacy
81 81%
19% 19
Monitoring Tools
0 0%
100% 100
Customisable Web Browser
100 100%
0% 0

User comments

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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 BLOCK THIS!

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

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...
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.
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

BLOCK THIS! Reviews

We have no reviews of BLOCK THIS! yet.
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Social recommendations and mentions

Based on our record, BLOCK THIS! seems to be more popular. It has been mentiond 22 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.

BLOCK THIS! mentions (22)

  • Blockada 5 alternative?
    Block This 3.1 VPN ad-blocker works just as well as adguard dns for older Android 8.0- OS. Very easy to use. Source: over 1 year ago
  • Nightmare on my kindle fire 8
    Try installing block-this on it and see if it helps. Https://block-this.com. Source: about 2 years ago
  • Are the “Jesus” ads on this site getting more aggressive?
    For android devices block this is an app that can block nearly all mobile ads, both in apps and in browsers. Source: about 2 years ago
  • Appliance makers sad that 50% of customers won’t connect smart appliances
    I think https://block-this.com/ does what you propose. Source: over 2 years ago
  • Is possible to make a universal patch for no ads that work on every apk?
    Maybe check out the canonical page instead: https://block-this.com. Source: over 2 years ago
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What are some alternatives?

When comparing Mozilla Firefox and BLOCK THIS!, you can also consider the following products

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

Blokada - The best ad blocker for Android. Free and open source.

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.

Bromite - Bromite is Chromium plus ad blocking and privacy enhancements; take back your browser!

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.

Ad Skipper for YouTube - Ad Skipper for YouTube – Skip and Mute YouTube ads is a powerful Android tool specially designed for YouTube streaming lovers who want to enjoy the high-quality fast streaming experience without any irritation from ads.