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Marketing · head to head

Fathom Analytics vs Mozilla Firefox

Fathom Analytics logo

Fathom Analytics

Marketing

Website analytics made simple

From
$14/month
Rated
-
Full reviewWebsite
Mozilla Firefox logo

Mozilla Firefox

Technology

An independent web browser with its own rendering engine, funded almost entirely by search placement deals.

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Mozilla Firefox has a free tier, so it costs nothing to try first.
  • Each has a real cost: Fathom Analytics there is no free tier, only a 7 day trial; Mozilla Firefox roughly 85 per cent of Mozilla's revenue comes from search default placement deals, overwhelmingly with Google, so the organisation that competes with Chrome depends on Chrome's owner for its funding and any renegotiation lands on Firefox's engineering budget within a quarter.
  • They diverge on capability: Fathom Analytics covers Page view tracking, Mozilla Firefox covers Gecko engine.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Fathom Analytics and Mozilla Firefox actually diverge.

Attributes where Fathom Analytics and Mozilla Firefox differ
AttributeFathom AnalyticsMozilla Firefox
Starting price$14/monthFree
Pricing modelsubscriptionUnknown
Free tierNoYes
PlatformsWebWindows, macOS, Linux, iOS, Android
CategoryMarketingTechnology
Founded20142004

Identical on both: user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Fathom Analytics

  • Page view tracking
  • Goal tracking
  • Real-time analytics
  • Referrer tracking
  • Privacy-focused
  • GDPR compliant
  • Cloud deployment
  • Web support

Only in Mozilla Firefox

  • Gecko engine
  • Full webRequest blocking
  • Total Cookie Protection
  • Container tabs
  • Extended Support Release
  • policies.json and ADMX
  • Built-in developer tools
  • Firefox Sync

What people use each for

The jobs each tool is most often brought in to do.

Fathom Analytics

  • Privacy-focused web analytics without cookie bannersnot Mozilla Firefox
  • A lightweight Google Analytics replacementnot Mozilla Firefox
  • Tracking many sites from one accountnot Mozilla Firefox
  • Long-term historical reporting while subscribednot Mozilla Firefox

Mozilla Firefox

  • Web development where you need to test against a non-Chromium engine before shipping, because Chromium-only testing hides real bugsnot Fathom Analytics
  • Users who require a full-strength content blocker, which Chrome's Manifest V3 no longer permitsnot Fathom Analytics
  • Managed fleets that need a browser on a slow release cadence with Group Policy control, using the ESR channelnot Fathom Analytics
  • Handling several accounts on the same service at once through container tabs, without separate profiles or private windowsnot Fathom Analytics

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Fathom Analytics

  • There is no free tier, only a 7 day trial
  • Priced on pageviews, from $45 a month at the 500,000 pageview level
  • Custom events count against the pageview allowance rather than being tracked separately
  • Site allowances come in packs, with additional 50-site packs at $10 a month
  • Data is retained forever only while the subscription is active

Mozilla Firefox

  • Roughly 85 per cent of Mozilla's revenue comes from search default placement deals, overwhelmingly with Google, so the organisation that competes with Chrome depends on Chrome's owner for its funding and any renegotiation lands on Firefox's engineering budget within a quarter.
  • Desktop market share sits at a few per cent, so commercial sites are tested against Chrome and Safari and a Firefox-only rendering or WebRTC bug is triaged as low priority by the site owner, leaving you with the workaround.
  • On iOS and iPadOS the browser is a WebKit shell required by Apple's rules, so it delivers the interface and Sync but none of the engine, extension or tracking-protection behaviour that make Firefox worth choosing on desktop.
  • Mozilla declines to implement several hardware-facing APIs on principle, including WebUSB, WebSerial, Web Bluetooth and WebHID, so a web application that talks to a device simply does not run and no configuration flag changes that.
  • Enterprise management is limited to policies.json and ADMX templates; there is no first-party equivalent of Chrome Browser Cloud Management, so fleet-wide reporting on versions and extensions requires third-party tooling you have to buy or build.
  • Mozilla repeatedly ships decisions its own user base objects to, such as enabling Privacy Preserving Attribution by default and the 2025 Terms of Use rewrite, and reversals arrive after the news cycle, so deploying it on a privacy argument means owning the communications work each time.

Pricing, plan by plan

Fathom Analytics

$14/month
  • Starter$14/month
    • Unlimited page views
    • 1 site
    • Real-time analytics

Mozilla Firefox

Free

No published plan breakdown. See the Mozilla Firefox review.

Which should you pick?

Choose Fathom Analytics if

  • You need page view tracking.
  • You also want goal tracking.
Fathom Analytics review

Choose Mozilla Firefox if

  • You need gecko engine.
  • You want to start without paying.
  • You work on Windows, macOS, Linux, iOS, Android.
  • You also want full webrequest blocking.
Mozilla Firefox review

Questions people ask

Is Fathom Analytics or Mozilla Firefox better?
Neither clearly leads. Fathom Analytics starts at $14/month and Mozilla Firefox at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Fathom Analytics or Mozilla Firefox?
Mozilla Firefox has a free tier; the other does not. Paid plans start at $14/month for Fathom Analytics and Free for Mozilla Firefox.
Does Fathom Analytics or Mozilla Firefox run on more platforms?
Fathom Analytics runs on Web. Mozilla Firefox runs on Windows, macOS, Linux, iOS, Android.
Can I use Mozilla Firefox for free?
Yes. Mozilla Firefox has a free tier, so you can try it without paying. Fathom Analytics starts at $14/month.
What is Fathom Analytics best used for?
Fathom Analytics is most often used for privacy-focused web analytics without cookie banners, a lightweight google analytics replacement, tracking many sites from one account, long-term historical reporting while subscribed. Of those, privacy-focused web analytics without cookie banners and a lightweight google analytics replacement are not what Mozilla Firefox is typically brought in for.
What can Fathom Analytics do that Mozilla Firefox cannot?
Fathom Analytics covers Page view tracking, Goal tracking, Real-time analytics, Referrer tracking. Mozilla Firefox covers Gecko engine, Full webRequest blocking, Total Cookie Protection, Container tabs.

Answered from the vendors’ own pages

Fathom Analytics: How much does Fathom Analytics cost?

Fathom's entry-level plan costs $45/month for up to 500,000 pageviews. Higher volume tiers exist (1M, 2M, 10M, 25M+ pageviews) with custom pricing. Yearly billing provides 2 months free.

Source
Mozilla Firefox: Does uBlock Origin still work on Firefox?

Yes. Firefox has kept the blocking webRequest API that Chrome removed with Manifest V3, so uBlock Origin runs with its full rule set rather than the cut-down Lite version Chrome requires.

Fathom Analytics: Is there a free trial for Fathom Analytics?

Yes, Fathom offers a 7-day free trial. There is no free tier after the trial ends.

Source
Mozilla Firefox: Is Firefox on iPhone the same browser?

No. Apple's platform rules require it to use WebKit, so on iOS and iPadOS you get Firefox's interface, Sync and bookmarks on top of Safari's engine. The privacy and extension behaviour are not the same.

Fathom Analytics: What happens if my pageviews exceed my plan limit?

Fathom handles usage overage graciously, only upgrading your plan after two consecutive months over your limit. There are no immediate overage charges.

Source
Mozilla Firefox: How is Mozilla funded, and does that matter?

Mainly by payments for making a search engine the default, with Google as the dominant payer. It matters because it is a single-source dependency on a direct competitor, and it has been the subject of antitrust litigation whose outcome Mozilla does not control.

Fathom Analytics: Can I add extra sites to my Fathom plan?

Yes, extra sites cost $10/month per 50-site pack, or $100/year (which includes two months free). All plans include a minimum of 50 included sites.

Source
Mozilla Firefox: Can I manage it across a company fleet?

Yes, through policies.json or Windows Group Policy with the ADMX templates, and the ESR channel gives you a roughly yearly major version instead of four-weekly. There is no first-party cloud management console, so reporting needs other tooling.

Fathom Analytics: Can I cancel Fathom without a long contract?

Yes, there are no contracts and cancellation is flexible. Fathom does not lock customers into agreements.

Source
Mozilla Firefox: Will every site work in it?

Most will. The exceptions cluster around sites tested only in Chrome, legacy enterprise applications, and anything using WebUSB, WebSerial, Web Bluetooth or WebHID, which Firefox does not implement at all.

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