Premium
What's new in Firefox Klar: No Fuss Browser 4.1
- Improved user experience when other apps opening Focus as the default browser
- Provide additional information when browsing secure websites (lock icon in address bar)
- Bug fixes and stability improvements
About Firefox Klar: No Fuss Browser 4.1
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.
Premium
“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.
Download Firefox Klar: No Fuss Browser 4.1
This release may come in several variants. Consult our handy FAQ to see which download is right for you.
Version:8.4.0
Uploaded:June 25, 2020 at 9:37PM UTC
File size:53.84 MB
Version:137.0
Uploaded:April 7, 2025 at 3:39AM UTC
File size:34.54 MB
Downloads:207
Version:136.0.2
Uploaded:March 28, 2025 at 6:18AM UTC
File size:34.3 MB
Downloads:218
Version:136.0.1
Uploaded:March 17, 2025 at 8:12PM UTC
File size:95.54 MB
Downloads:84
Version:136.0
Uploaded:March 5, 2025 at 1:47AM UTC
File size:34.29 MB
Downloads:122
Version:135.0.1
Uploaded:February 22, 2025 at 7:12PM UTC
File size:95.2 MB
Downloads:144
Version:135.0
Uploaded:February 9, 2025 at 3:11PM UTC
File size:34.6 MB
Downloads:208
Version:134.0.2
Uploaded:January 22, 2025 at 3:01PM UTC
File size:34.55 MB
Downloads:140
Version:134.0.1
Uploaded:January 15, 2025 at 3:55PM UTC
File size:34.54 MB
Downloads:84
Version:134.0
Uploaded:January 9, 2025 at 5:51PM UTC
File size:34.54 MB
Downloads:120
Version:133.0.3
Uploaded:December 11, 2024 at 7:02PM UTC
File size:34.3 MB
Downloads:215
