Alternatives and competitors

Sites like Mozilla

The 20 closest web browser software alternatives to Mozilla, ranked by what they actually offer, and the 10 technologies behind it.

Looking for an alternative to Mozilla? The closest matches are Firefox, Mozilla Thunderbird and CroxyProxy. We match sites by what they actually offer, from their homepages, Wikidata and a summary by Claude, in any language. Vote on each alternative and leave a short note to help the next person choose.

Neighbours
k = 20
Sites searched
4,032
Vector
384-d
Query
15 ms

01 · Entity

About Mozilla

Mozilla mozilla.org

Mozilla - Internet for people, not profit (US)

We’re working to put control of the internet back in the hands of the people using it.

Wikidata: American software company

Top 100 · #92 English 10 technologies Crawled Nov 6, 2026
Visit Mozilla

Summary by Claude

Mozilla's site presents its open-source software and privacy products, including the Firefox web browser, Thunderbird email client, Mozilla VPN, Mozilla Monitor and Firefox Relay. It also covers the nonprofit Mozilla Foundation's advocacy work and takes donations.

Who it’s for
General internet users and developers
Business model
Search engine partnerships, subscriptions, donations

02 · Embedding space

Competitor map

Each alternative by how close its vector is to Mozilla’s (x) and how much traffic it gets, how much of the stack it shares, or where it sits in the embedding space itself (y). Lines split each axis at the median. Hover for the numbers, click to jump to it in the list.

similarity × popularity

FastmailNLnet LabsMariaDBWikimedia movementStartpage.comSourceForgeDuckDuckGoCroxyProxyMozilla ThunderbirdFirefox

03 · Nearest neighbours

Alternatives to Mozilla

Thumbs up if it’s a real alternative to Mozilla, thumbs down if it isn’t.

Only in English
  1. 01
    Firefox firefox.com Top 1K English

    Firefox: The fast, private browser that keeps you safe — Firefox.com

    The independent browser that has your back. Firefox blocks trackers, has a free built-in VPN, puts you in control of AI, and never sells your personal data.

  2. 02
    Mozilla Thunderbird thunderbird.net Top 10K English

    free email client and personal information manager

  3. 03
    CroxyProxy croxyproxy.com Top 10K English

    Free web proxy and a cutting-edge online proxy | CroxyProxy

    CroxyProxy is a cutting-edge secure web proxy service. Use it to access your favorite websites and web applications: as a Facebook or YouTube proxy. It is free, you can try this online proxy right now!

  4. 04
    DuckDuckGo duckduckgo.com Top 1K English

    DuckDuckGo - Protection. Privacy. Peace of mind.

    The Internet privacy company that empowers you to seamlessly take control of your personal information online, without any tradeoffs.

  5. 05
    SourceForge sourceforge.net Top 1K English

    Compare B2B Software, Download, & Develop Open Source & Business Software - SourceForge

    SourceForge is the complete software discovery platform. SourceForge is the largest B2B software review and comparison site in the world, and features the largest business software directory, as well as free & fast open source software downloads and development.

  6. 06
    Startpage.com startpage.com English

    privacy-focused online search engine

  7. 07
    Wikimedia movement wikimedia.org Top 1K English

    Wikimedia Error

    global social movement for free educational knowledge

  8. 08
    MariaDB mariadb.org Top 10K English

    MariaDB Foundation - MariaDB.org

    database management system, relational, open source, community developed fork of MySQL

  9. 09
    NLnet Labs nlnetlabs.nl Top 10K English

    NLnet Labs - Home

    Research & Development, Internet architecture, DNS, Routing, Stability and Security.

  10. 10
    NetBird netbird.io Top 10K English

    NetBird - Open Source Zero Trust Networking

    WireGuard®-based overlay network and Zero Trust Network Access in one platform for reliable and secure connectivity

  11. 11
    Tor Project torproject.org Top 10K English

    Tor Project | Anonymity Online

    Anonymity Online | Defend yourself against tracking and surveillance. Circumvent censorship.

  12. 12
    Fastmail fastmail.com English

    Email and calendar made better | Fastmail

    Fast, private email hosting for you or your business. More productive, lightning fast, simple and built to save you time.

  13. 13
    Internet Archive archive.org Top 1K English

    Internet Archive: Digital Library of Free & Borrowable Texts, Movies, Music & Wayback Machine

    U.S. non-profit organization and digital archive

  14. 14
    Drupal drupal.org Top 10K English

    Client Challenge

    free and open-source web content management system

  15. 15
    Moz moz.com Top 10K English

    Moz - SEO Software for Smarter Marketing

    Backed by the largest community of SEOs on the planet, Moz builds the tools that make SEO, content marketing, market research, digital PR, and local SEO easy. Start your free trial today!

  16. 16
    SlideShare slideshare.net Top 1K English

    Client Challenge

    American hosting service, owned by Scribd, for professional content including presentations, infographics, documents, and videos

  17. 17
    Archive of Our Own archiveofourown.org Top 10K English

    Request temporarily denied. | Archive of Our Own

    nonprofit online fanfiction repository operated by the Organization for Transformative Works

  18. 18
    Apache Software Foundation apache.org Top 1K English

    Welcome to The Apache Software Foundation | Apache Software Foundation

    American nonprofit open-source software community

  19. 19
    Qwant qwant.com English

    Qwant - The search engine that values you as a user, not as a product

    Fast, reliable answers and still in trust: Qwant does not store your search data, does not sell your personal data and is hosted in Europe.

  20. 20
    Replit replit.com Top 10K English

    AI App and Website Builder | Replit

    Describe what you want. Replit builds it. Get a working app or website in minutes. No coding required.

Ranked by score: the cosine similarity of each site’s vector to mozilla.org’s, less a small penalty for generic sites that are close to everything. Highlighted technologies are ones Mozilla uses too. Votes and comments come from visitors and don’t change the ranking.

04 · Fingerprints

Technology

What Mozilla is built with, and what its closest competitors use, from its homepage’s code and its DNS records.

Built with

Monitoring
  • Sentry page source: .ingest.sentry.io
CDN
  • Fastly header x-served-by: cache-ber1080031-BER, cache-ber1080031-BER, cache-ber108002…
Hosting
  • Google Cloud header via: 1.1 google, 1.1 varnish, 1.1 varnish
Email hosting
DNS hosting
SaaS tools (verified in DNS)
  • Bing Webmaster Tools meta msvalidate.01: B7B177115A634927D608514DA17B2574
  • Google Search Console meta google-site-verification: U9a6gH32vLIykvntaDToj-ytYhlZ1AfAgVEKstixQIE
  • OpenAI TXT openai-domain-verification=dv-J6NgbJamHFrHSyNqlhElIX5K
  • Zoom TXT ZOOM_verify_lGxIzL49Id7PipUgDgTd9K

Stack changes

No changes yet. Each new crawl is compared with the last one, and what Mozilla adds or drops shows up here.

SimilarSiteSearch

Competitors by meaning, stacks from the source. Data from public homepages and DNS.

About our crawler