Comparison

Firefox Fast & Private Browser vs Adblock Private Browser Polun

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Firefox Fast & Private Browser

This browser prioritizes your privacy and security with built-in ad and tracker blocking. It offers a fast, clutter-free browsing experience with features like private tabs, password management, and cross-device syncing.

Highlights
  • Built-in ad and tracker blocking
  • Private browsing mode
  • Password generation and autofill
  • Cross-device tab syncing
  • Reader View for clutter-free articles
  • Voice search for quick answers
Features
Currently charting
Read full description

The internet. As it should be. Firefox is a private web browser 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. Why people choose Firefox: More privacy, less tracking – Firefox automatically blocks social media trackers, cross-site cookies, crypto miners and fingerprinting scripts. Private browsing that protects you – Open private tabs that don’t save your history, searches, or cookies. Lock them with your device security for extra protection. Fewer ads, less clutter – Turn on built-in ad blocking to cut down on distracting ads, leaving more room for what you actually came to see. Fast, smooth performance – Load pages faster by blocking trackers and reducing unnecessary data usage. Get Quick Answers – Ask Firefox a question by voice for a clear answer without digging through search results. Quick page summaries – Shake your phone to cut through long pages and get the key points. Tabs that work for you – Easily organize and switch between tabs and sync them across devices to pick up where you left off. Focus without distractions – Reader View strips away clutter, while picture-in-picture lets you multitask with videos. Passwords made simple – Generate, store and autofill passwords securely. Search your way – Use your preferred private search engine or switch easily from the search bar. Control your experience – Add extensions like ad blockers, customize settings and choose how you browse. AI on your terms – Turn AI completely off or customize it feature by feature. Sync across devices – Access your bookmarks, tabs and passwords anywhere you use Firefox. Make it yours – Customize your home screen, layout and shortcuts for a more personal browsing experience. Private by default. Firefox is built to protect you. Enhanced Tracking Protection automatically blocks common trackers, and you can also turn on the built-in ad blocker for more control over your browsing and fewer distracting ads. When you need more privacy, private browsing mode ensures your history, searches and cookies aren’t saved. Your browser. Your rules. Firefox puts you in charge of your internet. Add privacy or productivity extensions, including ad blockers, move your search bar, choose your default search engine and tailor your browser to how you use the web. Sync your data across devices for a seamless, consistent experience. Focus with Firefox. Fast, secure and built around you. Firefox is designed to help you stay focused with faster, more secure browsing. Reader Mode removes clutter from articles, Picture-in-Picture keeps videos accessible while you multitask and Tracker Blocking helps pages load faster. Built-in password management and private browsing keep everyday browsing simple and protected. Built for people, not profit. Firefox was created in 2004 by Mozilla as a faster, more private and customizable browser designed to put people first. Today, Mozilla remains a nonprofit working to make the internet — and the time you spend on it — better. Learn more about Mozilla: https://www.mozilla.org Terms of Use: https://www.mozilla.org/about/legal/terms/firefox/ Privacy Policy: https://www.mozilla.org/privacy/firefox Latest news: https://blog.mozilla.org

About

Adblock Private Browser Polun

This app is a fast, secure, and private web browser designed to block ads on every page. It helps save battery and data, offers passcode protection for privacy, and includes advanced video playback features.

Highlights
  • Blocks third-party ads
  • Saves battery and data usage
  • Passcode lock for privacy
  • Unlimited tab browsing
  • Image loading block
  • Picture-in-picture video
  • Offline video playback
Features
Read full description

I'm Polun Browser, from Japan. Polun Browser is a super-fast, safe, and private web browser with Adblock. Polun is a private browser that doesn't leave access or search history! Furthermore, you can prevent others from peeking by using the passcode lock feature! NEW features: - Block third-party ads. - Save battery consumption and data usage. - Lock the app with a passcode. - Unlimited tab browsing. - Reduce data usage with image loading block. - Request ad block. - User-friendly video player. - Picture-in-picture for videos. - Speed up video playback. - Offline video playback. - Video blocker. Recommended for: - Those who don't want their history to be seen. - Those who want to block web ads. - Those who want to block video ads. - Those whose data usage is limited at the end of the month. - Those worried about their battery in the evening. - Those who want to web search without worrying about prying eyes. - Those annoyed by redirect ads while browsing web pages. - Those who want to block videos or channels containing specific words. To learn more about Polun, visit https://www.privatebrowser.jp Questions or need support? Email us at support+en@hachiware.co.jp. We love hearing from you. Enjoying the app? Please leave us a 5-star review! Terms of Use: https://link.hachiware.app/x/term_of_service Privacy Policy: https://link.hachiware.app/x/privacy_policy

Screenshots

Firefox Fast & Private Browser4 screens
Adblock Private Browser Polun4 screens

Verdict

The call

The clearest difference is in-app purchases: Firefox Fast & Private Browser at none against Adblock Private Browser Polun's 4. Firefox Fast & Private Browser also leads on ratings volume (220K vs 2.1K) and chart position (#30 vs unranked). Adblock Private Browser Polun's advantage is review sentiment (70% vs 46%). On price, rating, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Adblock Private Browser Polun sells 4 in-app purchases, starting at $2.99 per month. Firefox Fast & Private Browser asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Firefox Fast & Private Browser against 4.7 for Adblock Private Browser Polun. That said, the two scores are not equally well evidenced: Firefox Fast & Private Browser has 220K ratings behind it against 2.1K, so its average is the more settled of the two. Written reviews are what separate them: 46% of Firefox Fast & Private Browser's written reviews are positive against 70% of Adblock Private Browser Polun's.

UpkeepUpdate frequency

Firefox Fast & Private Browser ships an update weekly, Adblock Private Browser Polun every 5 days. The most recent releases landed on November 11, 2026 and November 7, 2026 respectively.

Scorecard6 real differences · 5 level
Firefox Fast & Private Browser versus Adblock Private Browser Polun: the parameters behind the verdict, then further details
ParameterFirefox Fast & Private BrowserAdblock Private Browser Polun
PriceFreeFree
Rating4.6 (220K ratings)4.7 (2.1K ratings) — better
Positive reviews46.3% of reviews69.6% of reviews — better
Number of ratings220K — better2.1K
Update frequencyWeeklyEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank#30 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size373 MB165 MB
Age rating17+17+
DeveloperMozillaHachiware, LLC.

Customer experience

Firefox Fast & Private Browser

All ratings219,513 ratings
Positive91.7%
Neutral3.1%
Negative5.2%
Written reviews3,177 reviews
Positive46.3%
Neutral10.9%
Negative42.8%

Adblock Private Browser Polun

All ratings12 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews56 reviews
Positive69.6%
Neutral14.3%
Negative16.1%

Bugs and requests

Firefox Fast & Private Browser

Reported bugs

4 issues
  • Images not loading properly
  • Incompatibility with certain websites and web apps
  • Keyboard issues and unexpected behavior when switching between apps
  • Sync issues and data loss when switching devices

Requested features

4 requests
  • Dark mode option
  • Improved bookmark management and organization
  • Built-in ad blocker or support for third-party ad blockers
  • Ability to rearrange tabs and customize the UI

Adblock Private Browser Polun

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Firefox Fast & Private Browser

No in-app purchases

4 purchases

Adblock Private Browser Polun

Subscriptions3
  • Premium (Monthly)1 Month trial$2.991 Month
  • プレミアム (3ヶ月)1 Month trial$5.993 Months
  • Premium (Annual)1 Month trial$22.991 Year
One-time1
  • Premium (Lifetime)$39.99

Questions

Is Firefox Fast & Private Browser free?
Firefox Fast & Private Browser is free to download, with no in-app purchases.
Is Adblock Private Browser Polun free?
Adblock Private Browser Polun is free to download, with in-app purchases available.
Which has better reviews, Firefox Fast & Private Browser or Adblock Private Browser Polun?
Adblock Private Browser Polun is rated higher. Firefox Fast & Private Browser averages 4.6 out of 5 from 220K ratings, while Adblock Private Browser Polun averages 4.7 from 2.1K ratings.
Do Firefox Fast & Private Browser or Adblock Private Browser Polun have ads?
Neither Firefox Fast & Private Browser nor Adblock Private Browser Polun shows ads.
Which is updated more often, Firefox Fast & Private Browser or Adblock Private Browser Polun?
Firefox Fast & Private Browser ships an update weekly, and Adblock Private Browser Polun every 5 days. Most recently, Firefox Fast & Private Browser was updated on November 11, 2026 and Adblock Private Browser Polun on November 7, 2026.

Other comparisons