How many users does Firefox Fast & Private Browser have?

Estimated audience: ~434.0M lifetime downloads, ~26.0M monthly active users, and ~15.5M daily active users. Derived from ratings count × category installs-per-rating × age decay. US-storefront-equivalent — global audience can be 5-10× larger for internationally-distributed apps.

What apps are like Firefox Fast & Private Browser?

Browse the full Communication category catalog to find similar apps with revenue, build cost, audience and tech stack data. Each /p/{slug} page also shows a Compare side-by-side widget with three peer apps from the same niche.

What is Firefox Fast & Private Browser built with?

Our heuristic places Firefox Fast & Private Browser on the Native Android (Kotlin) stack (High confidence, 80%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: Flutter.

Is Firefox Fast & Private Browser still actively maintained?

Maintenance status: Active (5% abandonment risk). Last shipped version was 27 days ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.

When was Firefox Fast & Private Browser last updated?

Firefox Fast & Private Browser last shipped a new version on 2026-09-04 — less than a month ago. This is the date Apple / Google last accepted a new build, not a content-only push.

Who makes Firefox Fast & Private Browser?

Firefox Fast & Private Browser is published by Mozilla on the Google Play Store. See the full publisher portfolio (other apps by the same developer) via the More by developer block on the product page above.

What is Firefox Fast & Private Browser's BU Score?

Firefox Fast & Private Browser has a BU Score of 85/100 (Excellent). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.

Firefox Fast & Private Browser

Quality Score

Excellent

Firefox Fast & Private Browser

Name: Firefox Fast & Private Browser — app revenue, audience, build cost & risk profile
Creator: Bumetric
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Firefox Fast & Private Browser revenue, Firefox Fast & Private Browser app analytics, mobile app revenue estimate, Communication revenue, Android app revenue

by Mozilla

High confidence

4.6 Google Play rating

✍️ Bumetric analysis

“

Firefox Fast & Private Browser operates in the highly competitive communication category, directly challenging established browsers like Chrome and Edge by prioritizing user privacy and security features. Its substantial user rating, reflecting millions of individual reviews, signals robust, long-term traction and a mature product in the growth stage, rather than early adoption. The free monetization model, while common for browsers, means direct revenue isn't generated per download. In this category, developers often explore alternative monetization through premium VPN integrations, secure cloud storage subscriptions, or partnerships with search engines for default placement, rather than traditional in-app purchases or display ads within the browsing experience itself. The focus remains on user acquisition and retention through a superior, privacy-centric experience.

BU Score 85 · Excellent — strong product-market fit. The full Investment Matrix below scores 8 dimensions including monetisation, growth, and operational risk.

Track snapshot history and revenue forecast in the Performance section below.

💰 Forecast monthly revenue

—/mo

Founder-confirmed monthly revenue

BIG tier

💡 Grow this revenue

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Title & subtitle keyword fit
Description hook & conversion structure
Screenshots, ratings, reviews strategy

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Typical impact: +2-5× organic installs

📊 Performance Tracking LIVE

5 snapshots on record

idle

Rating

4.6

Reviews

6,533,528 reviews

Forecast Revenue / mo

—

Snapshots tracked

since May 2026

📊

BU Investment Matrix

Concerning · 50/100BIG TIERbelow benchmarks

Growth Velocity

5.0

Founder Strength

7.1

Product Quality

9.2

Revenue Strength

0.0

Monetization Maturity

1.0

Defensibility

7.5

Market Position

0.0

Operational Safety

10.0

💰 Revenue: Pre-revenue or unknown — $0 - $0/mo · BIG tier · high confidence, trajectory unclear.
⭐ Quality: 4.61★ across 6,533,528 reviews — exceptional (top 1% in category).
📍 Market: Not yet charting in any of the 9 monitored markets.
📈 Growth: Insufficient signal to assess trajectory.
⚠️ Risk: Low — no material risk signals detected.

🎯 For competitors: Mixed picture. Worth competing if you have a clear UX or pricing edge — otherwise crowded segment.

💵 For acquirers: No verified revenue — acquisition only makes sense for tech / userbase / brand.

Composite of 8 dimensions computed deterministically from public signals — no LLM, every score traces back to a measurable input. Default weights shown; "compete" / "acquire" / "invest" lenses re-weight without re-fetching.

Range:

💰 Forecast Revenue / mo

MODEL

Revenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.

🔬Forecast Breakdown — Why This Estimate?Top 7 of 7 triggers

Our ML model uses 200+ signals from public data. These are the most influential for this app:

High install base (6,533,528 ratings)METRIC		+$12,000
Excellent rating (4.6★)METRIC		+$2,200
bugsREVIEW		−$1,800
securityREVIEW		+$1,800
Mature app (15y old)METRIC		+$1,500
slowREVIEW		−$1,200
Ad-supported / freemiumMETRIC		+$600

METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)

📥 Estimated Downloads / week

PROXY · ratings × 50/wk —

Industry-rule estimate (Sensor Tower / data.ai): one weekly install ≈ 50 new ratings. Solid points = tracked snapshots · faded line = pre-tracking model backfill.

📈 Reviews Growth

LIVE

Cumulative review count from first BU snapshot. Each point = a tracked update.

⭐ Rating Trend

LIVE

Average rating evolution. Updates with each new review batch.

🗓️ Snapshot Timeline

HISTORY

Each bar shows a tracked update and the metric delta from the previous snapshot.

Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name: Firefox Fast & Private Browser
Developer: Mozilla
Bundle ID: org.mozilla.firefox
App Store URL: Open in App Store
Category: Communication
Content rating: Not found
Languages: Not found

Company

Website: www.mozilla.org
Tagline: Not found
Description: Not found
Founded: Not found
HQ / Address: Not found
Employees: Not found
Logo: Not found

Revenue

Reported revenue signal / mo: Not found
AI revenue estimate / mo: Not found
AI annual estimate: Not found
Model estimate / mo: $103/mo
Top-grossing rank: Not found
All-time revenue: Not found
Pricing: Not found

Founder

Founder data not yet collected for this app.

Funding

Funding data not yet collected for this app.

Press & Links

Press & Links data not yet collected for this app.

Contacts & Socials

Contacts & Socials data not yet collected for this app.

🚀Update Frequency · Releases per Quarter5 releases tracked

🚀Version Release Timeline5 releases tracked

Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.

📝 About this app

<b>The internet. As it should be.</b>

Firefox is a <b>private web browser</b> designed to protect your data, block trackers and make browsing fast, secure and simple. Whether you’re looking for an incognito browser, a private search experience, or a reliable browser for everyday use, Firefox puts you first.

<b>Why people choose Firefox</b>

<b>More privacy, less tracking</b> – Firefox automatically blocks social media trackers, cross-site cookies, crypto miners and fingerprinting scripts.… View full description on the official store →

App Specs

🔐 Own this app? Claim & verify MRR →

🔖 v155.0.1🔄 updated 3w ago📂 Communication💰 Free🚀 Launched 2010 (15y old)

📅

What Worked™ · Development Pipeline

5 EVENTS TRACKED

Detected changes in this app over its tracked lifetime — each event links cause (what changed) to effect (what moved). Sorted newest first.See full history →Version history →

2026-09

🔧

Shipped update — v153.0.3 → v155.0.1

→ 30 days after: reviews +46,826 high confidence

2026-08

🔧

Shipped update — v152.0.5 → v153.0.3

→ 30 days after: reviews +97,493 high confidence

2026-07

🔧

Shipped update — v151.0.4 → v152.0.5

→ 30 days after: reviews +93,974 high confidence

2026-06

🔧

Shipped update — v150.0.1 → v151.0.4

→ 30 days after: reviews +97,650 medium · co-occurring

2026-05

🚀

First tracked snapshot — initial data captured

→ 30 days after: reviews +54,343 high confidence

🔔

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ONE-TIME · BUILD 💰 Estimated build cost

$225K

↳ What it cost to build · not monthly revenue

Likely range $170K – $305K

$25K · MVP floor $100K · indie scale $500K+ · studio build

Synthetic estimate. Inputs: category complexity, file size, screen count, monetization layer, platform reach, age × team-size proxy. Calibrated against 2024-2026 indie-agency rate surveys. Full math + source list on /methodology.

Where the money goes

🧱 MVP baseline (design + 1-store ship)	+$28K
📱 5 unique screens × $4.5K	+$22K
⚙ Communication complexity ×1.65	+$32K
🌐 Cross-platform reach (iOS + Android)	+$45K
⚙ 15.8y maintenance × ~1-person team	+$94K

Total estimate $225K

👥 Estimated audience size

434.0M

Lifetime downloads (US-equivalent)

Monthly active

26.0M

Daily active

15.5M

Synthetic estimate from ratings × category benchmarks. Calibrated against 2024-2026 mobile-attribution retention + DAU/MAU reports. Numbers are US-storefront-equivalent — true global audience can be 5-10× larger for international apps. Full math + source list on /methodology.

How we sized it

📲 Communication engagement	~95 installs / rating
📅 15.8y of rating accumulation	-30%
🔁 Communication D30 retention	30%
📍 DAU / MAU stickiness	0.60

DAU / MAU 60% sticky

🛠 Estimated tech stack

🤖

Native Android (Kotlin)

High confidence · 80%

Also possible

Flutter

Heuristic guess from app bundle size, category, store description signals, and release-date stack era. Bumetric does not disassemble binaries — for binary-level certainty you would need an SDK intelligence tool or the manifest itself. Reasoning chain on the right. Full ruleset on /methodology.

Signals we read

🏷 Category context	Communication
📦 Compact Android bundle	→ Native Kotlin

💀 Maintenance status

Active

Last shipped 2026-09-04 · 27 days ago

0 · Active 50 · At risk 100 · Abandoned

Heuristic risk score from time-since-last-update + ratings velocity proxy + Editor's Choice / curated featuring signals. Calibrated against 2024-2025 app-store ranking decay reports. Not a guarantee — a quiet app with a healthy codebase looks the same as an abandoned one until something breaks. Full math on /methodology.

Risk signals

📅 27 days since last update

Active development

Verdict Active

📝 Description

BU Score · Transcendent

Full revenue analysis

Read the article-style breakdown for Firefox Fast & Private Browser: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.

Read deep-dive →