Real store listing. Store data comes from public listings; the assessment type and evidence coverage are labeled on this page.
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Independent automated assessment · 6 signal sources · 2,444 reviews scanned · analyzed 2026-10-06.

Firefox Fast & Private Browser

Mozilla

Browse the web with ad blocker

4.6 ★6,768,205 ratings
500M+Downloads
17+Age rating
382 MBApp size
FreeIn-app purchases

About this app

The internet. As it should be.

Firefox is a fast, private web browser designed to protect you by default. Privacy is built in from the start, so you can focus on what matters instead of worrying about who’s watching.…

Preview

Real screenshots from the store listing.

8 screenshots
Firefox Fast & Private Browser screenshot 1
Firefox Fast & Private Browser screenshot 2
Firefox Fast & Private Browser screenshot 3
Firefox Fast & Private Browser screenshot 4
Firefox Fast & Private Browser screenshot 5
Firefox Fast & Private Browser screenshot 6
Firefox Fast & Private Browser screenshot 7
Firefox Fast & Private Browser screenshot 8

Independent evidence report

The evidence behind this assessment

This is where the page changes from an app-store listing into an evidence report: findings, important reviews, pricing and a dated history.

Automated assessment complete

Which version this describes

When we ran this analysis, and what the store lists now.

This analysis describes version 157.0 of the app (the version number recorded inside the package we inspected), analyzed 2026-10-06 . The app may have changed since.

The store currently lists version 157.0, updated 2026-10-05.

What we measured

Each line is a measurement published as a measurement, never a verdict.

How these are measured

Each line is a measurement, published as a measurement. Where we have not looked, the line says so rather than reading as a zero.

Developer replies to reviews
Replies to at least 1 review in 20
Price in the store description
States no price and billing period
Cancelling, in the store description
Does not say how to cancel
Themes reported by reviewers
2 themes reported
Counted from the reviews we have read for this app. "No theme reported" means no theme reached our reporting threshold — it is not a finding that nothing is wrong with this app, and we do not say it is.
Five-star share of ratings
65–79% five-star
Arithmetic on the stores' own published rating counts. It says nothing about why the ratings fall where they do.

In the package we scanned

From the package we downloaded and read — version 157.0, scanned 2026-10-06.

Permissions Android classifies as dangerous
3–5 requested
Counted against the eighteen permissions listed in collect-package.ts. A dangerous permission is one Android asks the user to grant; requesting one is not itself a finding.
Analytics or tracking SDKs in the scanned package
1–2 found
Advertising SDKs in the scanned package
None found
Counted as distinct SDKs in the package we scanned. One mediation bundle can contribute several, so this is not a count of advertisers.

Graded bands · predicate set 1.4 · how these are measured

What the analysis found

App-specific findings, grouped by what each one rests on. How they are graded lives on its own page.

Methodology

The catch list 1

Charges we publish at a strength we stand behind: measured from an artefact, agreed by independent sources, or reported by enough users to clear that charge's own published bar.

Tracking and data collection concerns
2 independent sources agreefrom user reviews and the app manifestartefact 8eeb1088ad92…
The app ships session-recording or a wide tracking stack, holds permissions that read personal data, or is reported by users to sell, leak or over-collect it. The evidence line says which of those was observed.
What we saw: The app requests QUERY_ALL_PACKAGES, which lets the app enumerate every other app installed on the device.

One source only — shown, not confirmed 3

A single kind of evidence. We publish these because withholding them would be the bigger distortion, and we do not treat any of them as a finding we stand behind.

In the app's own text: Hard to cancel
One source onlyShown, not confirmed — the only source is the app's own on-screen text.artefact 8eeb1088ad92…
Cancelling the subscription is blocked, hidden, multi-step, or simply does not take effect.
What we saw: Sells a subscription in-app but ships no cancel or manage-subscription text of its own, leaving the store's settings as the only exit
In the app's own text: Trial terms not stated in the app's own text
One source onlyShown, not confirmed — the only source is the app's own on-screen text.artefact 8eeb1088ad92…
The app's own screens offer a free trial without stating, beside it, what happens when the trial ends. Read this as context rather than as a charge: renewal terms are normally shown on the store's purchase sheet instead, which we cannot see, and we can only observe one kind of evidence for this — so it is shown, but never counted as a charge.
What we saw: Offers a free trial ("Try it free") with no renewal price, renewal date or auto-renew notice anywhere in the app's own text
Reported by users: Aggressive ad load
One source onlyShown, not confirmed — the only source is user reviews.view evidence
Advertising volume or placement that interrupts normal use: ads between every action, unskippable or forced full-screen ads.
What we saw: Aggressive ad load: raised by 9 distinct reviewers (0.4% of 2444 reviews scanned)

Highlighted reviews

Representative public review excerpts shown as user reports, not Appworthy audit evidence.

Tracking and data collection concerns
“privacy giant. nonprofit. not selling my data to market to me. opt in.”
5★ · Google Play · 2026-10-02
Tracking and data collection concerns
“My review is gone!!! — And now they said there is an ad blocker, but I can’t find it anywhere. Ads are still pouring in from websites. Can Mozilla please be better with meeting expectations? They keep making bad UX decisions. They also…”
1★ · App Store · 2026-09-04
Tracking and data collection concerns
“AI pests, always getting worse — This used to be a great browser. Now it’s pushing AI functionality which has the potential to harvest user data without any transparency or ability to see what data it has exfiltrated. Mozilla claims you…”
1★ · App Store · 2026-08-22

Assessment & version history

App changes and Appworthy events in one timeline.

Store listing updated to version 157.1.

What this app sells

Useful store-disclosed pricing, kept below the app listing.

Business modelFree

Prices and terms as disclosed by the store listing.