FOSS Browser

Gaukler Faun | Browser

5 Downloads 13 Views v21.0 5.12 MB 4.1+

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(5.12 MB)

Editor's Overview

FOSS Browser is a browser application developed by Gaukler Faun, packaged as a single Android APK of version 21.0 weighing in at 5.12 MB. The package targets Android 4.1+ and above. Below you'll find the publisher's own description, a quick spec sheet, and a short buyer-beware checklist so you know exactly what you're installing before tapping download.

Install Checklist

Only download through the button on this page — never from third-party mirrors or shortened links, which are the most common way malware spreads.
File size is a light 5.12 MB, so it installs quickly even on modest connections.
This build is signed by "Gaukler Faun" — always verify the developer name matches what's listed on the app's official store page before installing an update.
After install, Android may prompt you to allow "Install from unknown sources" — approve only this one install, then revoke the permission in Settings > Apps > Special access.
We link directly to the APK file or the publisher's repository; we do not modify the binary. Always run a virus scan after any sideloaded install.

About this app

"FOSS Browser" is a fully free (as in freedom) open source Android browser: privacy-friendly with a modern user interface. - Your privacy - your data.

Project Homepage with further info: https://codeberg.org/Gaukler_Faun/FOSS_Browser

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UI/Handling
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FOSS Browser uses the latest Material You design libraries. Following system day/night mode and a wallpaper based theme are just two features of this new library. The UI is optimized for one-hand-use. All UI-elements are at the bottom of the screen.

More features:

• Keep screen on.
• Open links in background.
• Restore tabs on restart.

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Privacy
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FOSS Browser uses profiles to protect your privacy. For each profile you can enable or disable: AdBlock, JavaScript, cookies, fingerprint protection and much more. Profiles can also be saved for domains ("github.com" ⇒ Trusted website). This saved domains always overwrite the current profile. So, for example, "github.com" will always open with the trusted profile, even if you are browsing in the protected mode.

More privacy features:

• Build in AdBlock, which updates automatically. You can decide which content to block. AdBlock hosts are taken from Steven Black - AbBlock hosts: https://github.com/StevenBlack/hosts.
• Third-part-cookies can not be disabled.
• Enable or disable Android-autofill.
• Delete browser data (on app exit).
• Choose between different search engines (or set a custom one).
• FOSS Browser itself doesn't collect any data

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Bookmarks filter
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Organize your bookmarks with filters. You can set custom names for each filter. Long press the bookmark icon in the toolbar to get fast access to your favorite bookmarks.

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Gestures
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You can assign nearly twenty different gestures to the toolbar and the toolbar buttons. Each in four directions. You can also trigger events by long pressing the toolbar buttons. So you have up to ten different gestures to control FOSS Browser. Supported is for example: load last website, switch tab, reload, open bookmarks, ... and many more.

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Backups
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Backup all your important data (bookmarks, history, trusted websites and so on) on your SD-card. You can also back up FOSS Browser settings. Backups can even be restored on a fresh install or an other device (if you copy the backup files to the new device).

Details

Version	v21.0
Size	5.12 MB
Developer	Gaukler Faun
Category	Browser
Package	de.baumann.browser
Android	4.1+
Last Updated	Oct 29, 2026
Downloads	5

Frequently Asked Questions

Is FOSS Browser free to download?
Yes. The APK file linked from this page is free. The developer may offer in-app purchases once installed, but obtaining the installer itself costs nothing.

What Android version does FOSS Browser require?
Android 4.1+ or newer. Installing on older devices may cause crashes or refuse to install.

Is FOSS Browser safe to install?
We link to the exact APK published by Gaukler Faun. We do not modify the file. Still, as with any sideloaded app, scan it with a reputable antivirus before opening it, and only grant permissions the app genuinely needs.

How do I update FOSS Browser?
Install the newer version on top of the old one — Android will keep your data. If the signature differs, uninstall first (you may lose local progress).

Why is the app not installing?
Common causes: not enough storage, an older Android version than 4.1+, or a conflicting build already installed. Free up space, check your OS version, and uninstall any previous copy before retrying.

How to Download & Install FOSS Browser

Tap the Download APK button above and save the file to your device.
Open your device Settings → Security (or Apps → Special access → Install unknown apps) and allow your file manager or browser to install unknown apps for this one file only.
Open the downloaded de.baumann.browser.apk file from your Downloads folder.
Tap Install and wait for Android to finish.
Open «FOSS Browser» by Gaukler Faun and grant only the permissions it actually needs.
Revoke the "unknown sources" permission once you are done installing.

Note: this page hosts or links to the installer only. The application name, icon and description are provided for identification. All trademarks belong to their respective owners.