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Firefox Klar: No Fuss Browser icon
GOOGLE PLAY

Firefox Klar: No Fuss Browser

Mozilla · Communication · Japan store
NOT IN TOP 100 HERE
View on Google Play ↗ Instagram card
Revenue a month, worldwide
Too small to estimate
Not enough chart or ratings data
New ratings
Tracking
Daily counts start building from today
Countries it ranks in
0
was 0 on Oct 15, 2026

Revenue

Estimated from the grossing charts of Oct 21, 2026 in the 53 countries we track.

EST. REVENUE / MONTH · WORLDWIDE
Unranked
Not in a grossing chart in any country we track, so there is no rank to estimate from. Most unranked apps earn far less than charted ones, often close to nothing.
LIFETIME INSTALLS (GOOGLE)
942.6K
Worldwide, reported by Google
RATINGS
n/a
AVG RATING
n/a
PRICE
Free
IN APP PURCHASES
No
CONTAINS ADS
No
LAST UPDATE
1d ago
RELEASED
n/a
CONTENT RATING
Rated for 3+

Last 29 days

From our daily snapshots of every grossing chart.

DAYS IN A GROSSING CHART
0 / 29
COUNTRIES NOW
0 (was 0)
EST. REVENUE FROM CHARTS, DAILY · GOOGLE PLAY ONLY EST
Show daily values
Sep 24, 2026not in a grossing chart
Sep 25, 2026not in a grossing chart
Sep 26, 2026not in a grossing chart
Sep 27, 2026not in a grossing chart
Sep 28, 2026not in a grossing chart
Sep 29, 2026not in a grossing chart
Sep 30, 2026not in a grossing chart
Oct 1, 2026not in a grossing chart
Oct 2, 2026not in a grossing chart
Oct 3, 2026not in a grossing chart
Oct 4, 2026not in a grossing chart
Oct 5, 2026not in a grossing chart
Oct 6, 2026not in a grossing chart
Oct 7, 2026not in a grossing chart
Oct 8, 2026not in a grossing chart
Oct 9, 2026not in a grossing chart
Oct 10, 2026not in a grossing chart
Oct 11, 2026not in a grossing chart
Oct 12, 2026not in a grossing chart
Oct 13, 2026not in a grossing chart
Oct 14, 2026not in a grossing chart
Oct 15, 2026not in a grossing chart
Oct 16, 2026not in a grossing chart
Oct 17, 2026not in a grossing chart
Oct 18, 2026not in a grossing chart
Oct 19, 2026not in a grossing chart
Oct 20, 2026not in a grossing chart
Oct 21, 2026not in a grossing chart
Oct 22, 2026not in a grossing chart
Best rank Sep 24, 2026: not ranked. Now: not ranked. Days at zero are days outside every grossing chart.

Money and momentum

Measured from the store, not estimated.

WHAT IT CHARGES
No in-app purchases
Earns from its upfront price, ads or payments outside the store.
REVIEW MOMENTUM
0.5 reviews / week
  • Trendfalling
  • Recent reviews average4.0 stars
  • Recent 1 and 2 star share17%
From the latest 236 written reviews, covering 3411 days.

What users want

From the latest 236 reviews on the Japan Google Play, Jun 20, 2017 to Sep 9, 2026: 17% are 1 or 2 stars. Open a theme to read what people wrote.

WHAT THEY COMPLAIN ABOUT · SHARE OF BAD REVIEWS
Crashes and freezes13%

5 of the 1 and 2 star reviews.

★★★★★ Crashes when trying to open a link in an app
★★★★★ "Open in" keeps crashing.
★★★★★ Since a month or so, staring the app completely crashes the system when I open it (freeze, and then reboot).
Bugs, things not working13%

5 of the 1 and 2 star reviews.

★★★★★ There is an additional bug and it is automatically exiting the program
★★★★★ But it's been buggy since I installed it.
★★★★★ Now links don't open, the search bar on the top is buggy and the performance seemed low key worse aswell.
Wrong or poor results10%

4 of the 1 and 2 star reviews.

★★★★★ nice idea, but useless without an adblocker plugin like ublock origin, etc
★★★★★ However, this more private variety, Firefox Klar, is just plain useless!
★★★★★ it's not functional, last update is so wrong
Worse after an update8%

3 of the 1 and 2 star reviews.

★★★★★ I've been using this for a long while and I've been very happy with it but I hadn't really ever updated the app bcz I didn't need it...
★★★★★ last update makes me get "draining battery" alert every few hours.
★★★★★ it's not functional, last update is so wrong
Too many ads5%

2 of the 1 and 2 star reviews.

★★★★★ It seems to work fine for some people, but on my phone it does not block any ads and doesn't keep tabs open when minimised.
★★★★★ The browser blocked most web trackers and ads.
Slow, laggy, battery5%

2 of the 1 and 2 star reviews.

★★★★★ last update makes me get "draining battery" alert every few hours.
★★★★★ Good privacy-aware browser but often freezes while loading pages and becomes unusable.
Missing features5%

2 of the 1 and 2 star reviews.

★★★★★ Option to add "shortcuts" still only works for specific websites, this is basic functionality that is deeply missing.
★★★★★ Privacy shortcomings aside, the lack of multiple tabs is absurd and a deal breaker in and of itself.
WHAT THEY ASK FOR
  • And a Button to open a new Tab would be awesome. 4★, Apr 16, 2024
  • Please add "new tab" similar to the way Google Chrome recently reworked it (just the the small plus near the tab count). 4★, Jul 14, 2022
  • It would be nice to have the option to allow screenshots. 3★, Jul 14, 2022
  • it would be cool to have a "new tab" button (instead of having to use "open in new tab" and then search) 5★, Dec 4, 2021
  • please include easy to use new tab and close tab options, it's a hassle in its current form. 3★, Nov 19, 2021
  • It would be awesome if Firefox focus could automatically darken websites when the dark mode is activated/ on. 4★, Jul 5, 2021
  • In my mind this app really needs a widget like regular Firefox has so it can serve as the perfect Google Search replacement. 4★, May 2, 2021
  • Really needs a rework, why not use the same UI as in Firefox? 3★, Jun 4, 2020
WORDS THAT KEEP COMING UP IN BAD REVIEWS

Nothing stands out.

WHAT THEY LOVE · SHARE OF GOOD REVIEWS
Fast15%

26 of the 4 and 5 star reviews.

★★★★★ Top, does what it should quick and easy to use Useful messages to confirm history cleared.
★★★★★ you can delete your history quickly &by it self automatically delete & so fast in browsing
★★★★★ Great privacy-centered lightweight Firefox for the phone, very handy when you need to do a quick search that won't put you on a list.
Easy to use11%

18 of the 4 and 5 star reviews.

★★★★★ A great, simple and lightweight private browser
★★★★★ easy to handle, a simple browser that protects the privacy
★★★★★ simple to use compared to other browsers and the best part is that the cookies are deleted after ending the session
Looks great6%

11 of the 4 and 5 star reviews.

★★★★★ nice clean and fast browser.
★★★★★ schnell, clean, simpel, funktioniert.
★★★★★ I love the design, although it has some flaws
Great support3%

5 of the 4 and 5 star reviews.

★★★★★ If only it would support bottom toolbar and had a new tab button.
★★★★★ needs plugin support, which is the main draw for Firefox
★★★★★ Can you please add multi-tab support?
Useful, it helps2%

3 of the 4 and 5 star reviews.

★★★★★ Top, does what it should quick and easy to use Useful messages to confirm history cleared.
★★★★★ great browser, helps me avoid the "hundreds of open tabs" problem, it only does one page at a time

Found by matching words and phrases in the reviews, not read by a person. A review can count toward more than one theme.

What users say

Latest reviews, Japan Google Play.

★★★★★Sep 9, 2026

Please remove the spying permissions that are not absolutely necessary.

★★★★★Aug 20, 2026

very good

★★★★★Aug 19, 2026

i'm missing reader mode

★★★★★Aug 15, 2026

A great, simple and lightweight private browser

★★★★★Jul 29, 2026

Near perfection 🙌

★★★★★Feb 19, 2026

nice idea, but useless without an adblocker plugin like ublock origin, etc

Store screenshots

ScreenshotScreenshotScreenshot

Growth research

Where this app is buying and earning its users. Each link opens pre filtered.

Meta Ad Library ↗Active Facebook and Instagram adsTikTok Creative Center ↗Top performing TikTok adsTikTok creators ↗Organic videos mentioning the appInstagram ↗Reels and posts under its hashtagYouTube ↗Reviews, tutorials and ShortsDeveloper site ↗Landing page and pricing

ASO keywords

Most repeated terms in the listing. Highlighted ones also appear in the title or short description.

trackers4blocks wide3wide range3history passwords3passwords cookies3web3browse2klar2blocks2wide2range2online2easily2history2passwords2cookies2ads2always2mozilla2faster2

What's new in 158.0.2

Fehlerbehebungen und technische Verbesserungen.

Store description

Browse like no one’s watching. The new Firefox Klar automatically blocks a wide range of online trackers — from the moment you launch it to the second you leave it. Easily erase your history, passwords and cookies, so you won’t get followed by things like unwanted ads. “Private browsing” on most browsers isn’t comprehensive or easy to use. Klar is next-level privacy that’s free, always on and always on your side — because it’s backed by Mozilla, the non-profit that fights for your rights on the Web. AUTOMATIC PRIVACY • Blocks a wide range of common Web trackers without any settings to set • Easily erases your history — no passwords, no cookies, no trackers BROWSE FASTER • By removing trackers and ads, Web pages may require less data and load faster MADE BY MOZILLA • We believe everyone should have control over their lives online. That’s what we’ve been fighting for since 1998.

See this store page in another country

Prices, ranks and reviews are per country. Revenue above is already worldwide.

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