Comparison

Firefox Fast & Private Browser vs OD browser

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

A fast and private web browser that protects you by default. It blocks trackers, offers private browsing, and provides tools to help you focus on content and manage your logins securely.

Highlights
  • Enhanced Tracking Protection
  • Private browsing mode
  • Page summaries
  • Built-in password manager
  • Reader Mode
  • Sync across devices
Features
Currently charting
Read full description

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. Why people choose Firefox: • Enhanced Tracking Protection – Blocks trackers by default to help stop companies from following you across the web. • Private browsing mode – Browse without saving your history, searches, or cookies. • Page summaries – Get the key points from long pages and move on faster. • Built-in password manager – Generate strong passwords, save them securely, and autofill logins when you need them. • Flexible search options – Choose your default search engine or switch search engines right from the search bar. • Reader Mode – Remove ads and clutter from articles so you can focus on what you’re reading. • Sync across devices – Pick up where you left off with synced tabs, bookmarks, and passwords when you sign in to your Mozilla account. Private by default Firefox is designed with privacy built in from the moment you start browsing. Enhanced Tracking Protection automatically blocks common background trackers, including social media trackers, crypto miners, and fingerprinters. When you want extra privacy, private browsing mode doesn’t save your history, searches, or cookies. Focus on what matters The web can be distracting. Firefox is designed to help you stay focused without making you manage everything yourself. Reader Mode clears clutter from articles, and picture-in-picture keeps videos visible while you multitask—without pulling focus from what you’re doing. Browse your way Customize Firefox to fit how you browse. Personalize your home screen with wallpapers and layout options, and choose your preferred search engine instead of being pushed into a single ecosystem. You can move the search bar to the top or bottom of the screen for easier one-handed browsing. Sign in to your Mozilla account to sync tabs, bookmarks, passwords, and browsing history across devices, so switching feels seamless. Built for people, not profit Firefox was created in 2004 by Mozilla as a faster, more private, and more customizable alternative to other browsers. Today, Mozilla remains a nonprofit and continues 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

OD browser

This AI-powered browser offers a faster, smarter, and more private browsing experience. It provides quick access to popular Japanese websites and includes features to block ads and significantly reduce data usage through encryption and compression.

Highlights
  • AI-powered browsing
  • Quick access to popular Japanese websites
  • Ad blocking
  • Data usage reduction (up to 90%)
  • Website favorites
Features
Read full description

OD browser (Old Dirver) is a AI broswer,which is faster,smarter and private . It collects most popular websites in Japan,heping you go to these sites quickly. Favourites: To acess some of your websites very frequently, you can add any of your favourite website to homepage. Faster: Using complex computer calculation method on clouding server to speed up your web browser. Block ad: Remove or alter advertising content from a website. Reduce Data Usage: Encryption and compression functions can reduce 90% data usage. Please contact the application's support team if you have any question. problems and outages for OD browser : linbeauty777@gmail.com Request for business cooperation: linbeauty777@gmail.com

Screenshots

Firefox Fast & Private Browser4 screens
OD browser4 screens

Verdict

The call

The clearest difference is in-app purchases: Firefox Fast & Private Browser at none against OD browser's 8. Firefox Fast & Private Browser also leads on ads (none vs shown) and ratings volume (217K vs 46). OD browser's advantage is review sentiment (64% vs 45%) and iOS requirement (12.0 vs 15.0). On price, rating and device support 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. OD browser sells 8 one-off in-app purchases. Firefox Fast & Private Browser asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Firefox Fast & Private Browser holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Firefox Fast & Private Browser has 217K ratings behind it against 46, so its average is the more settled of the two. Written reviews complicate that: 45% of Firefox Fast & Private Browser's written reviews are positive against 64% of OD browser's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Firefox Fast & Private Browser ships an update weekly, OD browser every 3 weeks. The most recent releases landed on September 24, 2026 and August 29, 2026 respectively.

Scorecard8 real differences · 3 level
Firefox Fast & Private Browser versus OD browser: the parameters behind the verdict, then further details
ParameterFirefox Fast & Private BrowserOD browser
PriceFreeFree
Rating4.6 (217K ratings) — better4.4 (46 ratings)
Positive reviews45.4% of reviews63.6% of reviews — better
Number of ratings217K — better46
Update frequencyWeekly — betterEvery 3 weeks
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank#25 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size363 MB50 MB
Age rating17+17+
DeveloperMozillaLin MingHsun

Customer experience

Firefox Fast & Private Browser

All ratings217,373 ratings
Positive91.8%
Neutral3.1%
Negative5.2%
Written reviews2,924 reviews
Positive45.4%
Neutral11.1%
Negative43.5%

OD browser

All ratings46 ratings
Positive87.0%
Neutral2.2%
Negative10.9%
Written reviews66 reviews
Positive63.6%
Neutral16.7%
Negative19.7%

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

OD browser

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Firefox Fast & Private Browser

No in-app purchases

8 purchases

OD browser

One-time8
  • A cup of tea$0.99
  • A pork rice$0.99
  • Three eggs$0.99
Show 5 more
  • A chicken chops$1.99
  • A packed lunch$2.99
  • A movie ticket$6.99
  • A steak$11.99
  • A flight ticket$99.99

Questions

Is Firefox Fast & Private Browser free?
Firefox Fast & Private Browser is free to download, with no in-app purchases.
Is OD browser free?
OD browser is free to download, with in-app purchases available.
Which has better reviews, Firefox Fast & Private Browser or OD browser?
Firefox Fast & Private Browser is rated higher. Firefox Fast & Private Browser averages 4.6 out of 5 from 217K ratings, while OD browser averages 4.4 from 46 ratings.
Do Firefox Fast & Private Browser or OD browser have ads?
OD browser shows ads; Firefox Fast & Private Browser does not.
Which is updated more often, Firefox Fast & Private Browser or OD browser?
Firefox Fast & Private Browser ships an update weekly, and OD browser every 3 weeks. Most recently, Firefox Fast & Private Browser was updated on September 24, 2026 and OD browser on August 29, 2026.

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