Firefox Klar: No Fuss Browser

4.6
16K reviews
5L+
Downloads
Content rating
USK: All ages
Screenshot image
Screenshot image
Screenshot image

About this app

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.
Updated on
19 May 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App activity and App info and performance
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.6
13.3K reviews
Dodecamethyl Cyclohexasilane (cyclohexasilane)
3 February 2025
It is so frustrating. I started to rejoice when I opened the app and saw that there is no icon to the left of the address bar but then... it sorted when I visited a page... and it is the thrash icon! This spot is notoriously close to where the "Back" button on many sites is, so it is prone to be hit accidentally. And it closes the site. Irreversibly. Didn't that come up in your UX tests? Or do you just not include people with low depth perception in those?
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A Google user
25 November 2019
Being an intensive user of Focus, I tried to switch to Preview because you're concentrating your efforts on it, but I have to admit that I still really prefer Focus notably for its amazing trash icon which makes everything easy. On Preview, the erase on quit works randomly so it's not as efficient. Aside from that, devs, I feel that you're abandoning Focus and it's a big shame. Battery drain since the last update, drop down menus not working... Please, maintain the development of Focus!
13 people found this review helpful
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Hab Ich
26 March 2025
no problems so far. stable, fast, low system load...
1 person found this review helpful
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What's new

Fehlerbehebungen und technische Verbesserungen.