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WebLibre: private Android browser on Gecko

By AiCoN | 6 October 2026 | 6 min read

WebLibre is a free, open-source Android browser built on Mozilla's Gecko engine. It adds tab containers, per-tab Tor routing and a search that runs on your phone. It is an independent project, not made by Mozilla.

Official publisher logo hosted by its publisher. Official source. Independent guide, not affiliated or sponsored. Artwork and trademarks belong to their owners.

What is WebLibre?

WebLibre is an Android browser built from scratch on Gecko, the engine behind Firefox, and Mozilla Android Components. The F-Droid listing describes it as an independent privacy-focused browser with extension support. The developer behind the Play listing is OnDevice UG, a German company. The code is open source under the GNU Affero General Public License v3.0 or later.

Main features

Tab containers. Tabs are grouped into containers with separate cookies, so work, shopping and personal browsing stay apart. A container can be locked with biometrics and can use Tor.
Tor routing. Chosen tabs or containers can go through the Tor network. It is per tab or container, not the whole browser, and it is slower than normal browsing.
Local search. A search engine on your device finds things in open tabs, bookmarks, feeds and history. Typing a bang searches a site directly.
Content blocking. The F-Droid text says ads, trackers and unwanted content are blocked by default.
Local AI (opt-in). F-Droid says on-device models can group related tabs into containers. It is opt-in.
Profiles. Separate profiles keep their own data, extensions and settings.

How to get it, step by step

Choose a source. Google Play is easiest. F-Droid is the open-source app store and builds and signs the app itself.
Check that your phone runs Android 8.0 or newer. F-Droid lists this as the minimum for the current version.
Install the app and open it. Read the permissions it asks for.
Create a container for a separate use, such as banking, and set a lock if you want one.
Try Tor on one container for sensitive browsing, and keep normal browsing for everyday sites.
Open the source code link if you want to read how it works.

Price	Free.
Licence	AGPL-3.0 or later, open source.
Play listing	1K+ downloads, rated Everyone. Updated 7 February 2026 on Play.
F-Droid	Version 0.20.0 listed, added 19 July 2026.

Things to check before you rely on it

Privacy claims differ by sourceF-Droid says WebLibre does not track, monitor or collect browsing data. The Play Data safety section, filled in by the developer, says the app may collect app activity, web browsing and device or other IDs, and may share some data types such as location with third parties. Read the privacy policy and the permissions yourself.

It is a small, independent project with 1K+ Play downloads, so it has had far less testing than Firefox or Chrome.
Tor makes browsing slower and does not make you anonymous if you sign in to your own accounts.
Some sites may behave differently with strict privacy settings.

AiCoN checkWe read the Play and F-Droid listings and the GitHub page. We did not audit the code.

What changed since the short post?

Earlier WebLibre headlines are merged into this single guide. Current Play and F-Droid privacy descriptions disagree, so neither is treated as an independent privacy audit.

Frequently asked questions

Is it made by Mozilla?

No. It is independent. It uses Mozilla's Gecko engine.

Is it free?

Yes. No price is listed on Play or F-Droid.

Where do I get it without Google Play?

The F-Droid listing.

Does it support extensions?

F-Droid says it has extension support.

Sources: Google Play listing, F-Droid listing, Source code (GitHub). Checked 6 October 2026.