Download Firefox for Droid (a.k.a. Fennec)

EddieC 0 Tallied Votes 702 Views Share

Developers Brad Lassey, Alex Pakhotin, Vladimir Vukićević and Michael Wu this week unveiled what they're calling a pre-alpha version of the Fennec browser, better known as Firefox for Google's Android mobile operating system. You can download the code, which as of last week had been tested only on Motorola Droid and Nexus One.

According to a , developers also should heed the following additional warnings:

  • It will likely not eat your phone, but bugs might cause your phone to stop responding, requiring a reboot.
  • Memory usage of this build isn't great--in many ways it's a debug build, and we haven't really done a lot of optimization yet. This could cause some problems with large pages, especially on low memory devices like the Droid.
  • You'll see the app exit and relaunch on first start, as well as on add-on installs; this is a quirk of our install process, and we're working to get rid of it.
  • You can't open links from other apps using Fennec; we should have this for the next build.
  • This build requires Android 2.0 or above, and likely an OpenGL ES 2.0 capable device.
  • Edit: This build must be installed to internal memory, not to a SD card.

For alpha-user feedback, the Fennec team has created the on Google, and asks users to post comments and bug reports there. There, you also can track the latest builds, Fennec news and progress made by other developers.

also contains installation and troubleshooting guidance and a warning that no automated nightly developer builds or automated updates exist, and that "it's even more of a pre-nightly build (even earlier than pre-alpha). But, it's usable enough that we wanted to get some feedback on it as we continue to develop." There's even an early version of , which allows browsers on multiple machines and devices to share bookmarks, recent tabs and browsing history, passwords and preferences securely.

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This thread points to the very early Fennec (Firefox for Android) work that highlighted in 2010. Fennec was the codename for Mozilla's mobile browser project; those pre‑alpha and alpha snapshots were part of the effort that later became the official Firefox for Android line. (blog.mozilla.org)

For anyone arriving here years later and wanting a usable, secure browser: install the current Firefox for Android from the official channels (Google Play or Mozilla) rather than an old developer snapshot. The first broadly distributed Android build shipped with Firefox 4 in March 2011, and the product was significantly reworked (codename Fenix / "Firefox Daylight") and relaunched in 2020; Mozilla’s supported minimum Android version has been raised in recent years, so modern releases require up‑to‑date Android (see Mozilla support for exact minimums). (blog.mozilla.org)

If the goal is archival testing or development (not daily browsing), archived APKs and migration notes are available from Mozilla’s archives and developer docs. When using archived builds: choose the correct CPU/ABI (arm vs arm64 vs x86), back up or sync profile data first, disable automatic Play Store updates if you intentionally install an older APK, and treat those builds as unmaintained and insecure for regular use. Developer migration guidance is available for moving data when testing upgrades between old Fennec and newer Fenix builds. (support.mozilla.org)

Weave (the early sync add‑on) was folded into the integrated Firefox Sync experience, and modern syncing uses a Firefox Account — use that for safe migration of bookmarks/passwords rather than copying profiles manually. For historical experimentation keep a spare device or emulator and avoid putting personal accounts on unpatched builds. (wired.com)

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